diff --git a/doc/src/sgml/auto-explain.sgml b/doc/src/sgml/auto-explain.sgml index 56340b11de91fa36d17b3f2e61c4d902c6dde2cc..ede38cd91ab562aad516746e01b042bdb1b09fd1 100644 --- a/doc/src/sgml/auto-explain.sgml +++ b/doc/src/sgml/auto-explain.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/auto-explain.sgml,v 1.8 2010/04/03 07:22:52 petere Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/auto-explain.sgml,v 1.9 2010/07/29 19:34:40 petere Exp $ --> <sect1 id="auto-explain"> <title>auto_explain</title> @@ -19,9 +19,9 @@ The module provides no SQL-accessible functions. To use it, simply load it into the server. You can load it into an individual session: - <programlisting> +<programlisting> LOAD 'auto_explain'; - </programlisting> +</programlisting> (You must be superuser to do that.) More typical usage is to preload it into all sessions by including <literal>auto_explain</> in @@ -163,45 +163,44 @@ LOAD 'auto_explain'; <xref linkend="guc-custom-variable-classes">. Typical usage might be: </para> - <programlisting> +<programlisting> # postgresql.conf shared_preload_libraries = 'auto_explain' custom_variable_classes = 'auto_explain' auto_explain.log_min_duration = '3s' - </programlisting> +</programlisting> </sect2> <sect2> <title>Example</title> - <programlisting> - postgres=# LOAD 'auto_explain'; - postgres=# SET auto_explain.log_min_duration = 0; - postgres=# SELECT count(*) - FROM pg_class, pg_index - WHERE oid = indrelid AND indisunique; - </programlisting> +<programlisting> +postgres=# LOAD 'auto_explain'; +postgres=# SET auto_explain.log_min_duration = 0; +postgres=# SELECT count(*) + FROM pg_class, pg_index + WHERE oid = indrelid AND indisunique; +</programlisting> <para> This might produce log output such as: </para> - <programlisting><![CDATA[ - LOG: duration: 3.651 ms plan: - Query Text: SELECT count(*) - FROM pg_class, pg_index - WHERE oid = indrelid AND indisunique; - Aggregate (cost=16.79..16.80 rows=1 width=0) (actual time=3.626..3.627 rows=1 loops=1) - -> Hash Join (cost=4.17..16.55 rows=92 width=0) (actual time=3.349..3.594 rows=92 loops=1) - Hash Cond: (pg_class.oid = pg_index.indrelid) - -> Seq Scan on pg_class (cost=0.00..9.55 rows=255 width=4) (actual time=0.016..0.140 rows=255 loops=1) - -> Hash (cost=3.02..3.02 rows=92 width=4) (actual time=3.238..3.238 rows=92 loops=1) - Buckets: 1024 Batches: 1 Memory Usage: 4kB - -> Seq Scan on pg_index (cost=0.00..3.02 rows=92 width=4) (actual time=0.008..3.187 rows=92 loops=1) - Filter: indisunique -]]> - </programlisting> +<screen><![CDATA[ +LOG: duration: 3.651 ms plan: + Query Text: SELECT count(*) + FROM pg_class, pg_index + WHERE oid = indrelid AND indisunique; + Aggregate (cost=16.79..16.80 rows=1 width=0) (actual time=3.626..3.627 rows=1 loops=1) + -> Hash Join (cost=4.17..16.55 rows=92 width=0) (actual time=3.349..3.594 rows=92 loops=1) + Hash Cond: (pg_class.oid = pg_index.indrelid) + -> Seq Scan on pg_class (cost=0.00..9.55 rows=255 width=4) (actual time=0.016..0.140 rows=255 loops=1) + -> Hash (cost=3.02..3.02 rows=92 width=4) (actual time=3.238..3.238 rows=92 loops=1) + Buckets: 1024 Batches: 1 Memory Usage: 4kB + -> Seq Scan on pg_index (cost=0.00..3.02 rows=92 width=4) (actual time=0.008..3.187 rows=92 loops=1) + Filter: indisunique +]]></screen> </sect2> <sect2> diff --git a/doc/src/sgml/citext.sgml b/doc/src/sgml/citext.sgml index 49b0989815674f474a24aad5f681785578cb3e62..28c5043183cd2c0417c7f8f588d16409122d7982 100644 --- a/doc/src/sgml/citext.sgml +++ b/doc/src/sgml/citext.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/citext.sgml,v 1.4 2010/06/29 22:29:13 momjian Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/citext.sgml,v 1.5 2010/07/29 19:34:40 petere Exp $ --> <sect1 id="citext"> <title>citext</title> @@ -22,9 +22,9 @@ in <productname>PostgreSQL</> has been to use the <function>lower</> function when comparing values, for example - <programlisting> - SELECT * FROM tab WHERE lower(col) = LOWER(?); - </programlisting> +<programlisting> +SELECT * FROM tab WHERE lower(col) = LOWER(?); +</programlisting> </para> <para> @@ -74,20 +74,20 @@ <para> Here's a simple example of usage: - <programlisting> - CREATE TABLE users ( - nick CITEXT PRIMARY KEY, - pass TEXT NOT NULL - ); +<programlisting> +CREATE TABLE users ( + nick CITEXT PRIMARY KEY, + pass TEXT NOT NULL +); - INSERT INTO users VALUES ( 'larry', md5(random()::text) ); - INSERT INTO users VALUES ( 'Tom', md5(random()::text) ); - INSERT INTO users VALUES ( 'Damian', md5(random()::text) ); - INSERT INTO users VALUES ( 'NEAL', md5(random()::text) ); - INSERT INTO users VALUES ( 'Bjørn', md5(random()::text) ); +INSERT INTO users VALUES ( 'larry', md5(random()::text) ); +INSERT INTO users VALUES ( 'Tom', md5(random()::text) ); +INSERT INTO users VALUES ( 'Damian', md5(random()::text) ); +INSERT INTO users VALUES ( 'NEAL', md5(random()::text) ); +INSERT INTO users VALUES ( 'Bjørn', md5(random()::text) ); - SELECT * FROM users WHERE nick = 'Larry'; - </programlisting> +SELECT * FROM users WHERE nick = 'Larry'; +</programlisting> The <command>SELECT</> statement will return one tuple, even though the <structfield>nick</> column was set to <quote>larry</> and the query diff --git a/doc/src/sgml/client-auth.sgml b/doc/src/sgml/client-auth.sgml index 0afaa820e9e69385c0c8be8edeff46ca7c8347eb..254f6670fa39026117f457a4e05e546b298cbb28 100644 --- a/doc/src/sgml/client-auth.sgml +++ b/doc/src/sgml/client-auth.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/client-auth.sgml,v 1.139 2010/06/29 22:29:13 momjian Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/client-auth.sgml,v 1.140 2010/07/29 19:34:40 petere Exp $ --> <chapter id="client-authentication"> <title>Client Authentication</title> @@ -1353,11 +1353,11 @@ omicron bryanh guest1 Since LDAP often uses commas and spaces to separate the different parts of a DN, it is often necessary to use double-quoted parameter values when configuring LDAP options, for example: +<programlisting> +ldapserver=ldap.example.net ldapprefix="cn=" ldapsuffix=", dc=example, dc=net" +</programlisting> </para> </note> - <synopsis> -ldapserver=ldap.example.net ldapprefix="cn=" ldapsuffix=", dc=example, dc=net" - </synopsis> </sect2> diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml index 4159562418d377a8452b3ce36a634a64e5d7d2c7..71cfb842de847ea19770eccddefeaa31f0b046a4 100644 --- a/doc/src/sgml/config.sgml +++ b/doc/src/sgml/config.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.301 2010/07/27 19:01:16 petere Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.302 2010/07/29 19:34:40 petere Exp $ --> <chapter Id="runtime-config"> <title>Server Configuration</title> @@ -5808,29 +5808,20 @@ plruby.use_strict = true # generates error: unknown class name type a count of the number of granted locks and waiting locks is also dumped as well as the totals. An example of the log file output is shown here: - </para> - <para> - LOG: LockAcquire: new: lock(0xb7acd844) id(24688,24696,0,0,0,1) - grantMask(0) req(0,0,0,0,0,0,0)=0 grant(0,0,0,0,0,0,0)=0 - wait(0) type(AccessShareLock) - </para> - <para> - LOG: GrantLock: lock(0xb7acd844) id(24688,24696,0,0,0,1) - grantMask(2) req(1,0,0,0,0,0,0)=1 grant(1,0,0,0,0,0,0)=1 - wait(0) type(AccessShareLock) - - </para> - <para> - LOG: UnGrantLock: updated: lock(0xb7acd844) id(24688,24696,0,0,0,1) - grantMask(0) req(0,0,0,0,0,0,0)=0 grant(0,0,0,0,0,0,0)=0 - wait(0) type(AccessShareLock) - </para> - <para> - LOG: CleanUpLock: deleting: lock(0xb7acd844) id(24688,24696,0,0,0,1) - grantMask(0) req(0,0,0,0,0,0,0)=0 grant(0,0,0,0,0,0,0)=0 - wait(0) type(INVALID) - </para> - <para> +<screen> +LOG: LockAcquire: new: lock(0xb7acd844) id(24688,24696,0,0,0,1) + grantMask(0) req(0,0,0,0,0,0,0)=0 grant(0,0,0,0,0,0,0)=0 + wait(0) type(AccessShareLock) +LOG: GrantLock: lock(0xb7acd844) id(24688,24696,0,0,0,1) + grantMask(2) req(1,0,0,0,0,0,0)=1 grant(1,0,0,0,0,0,0)=1 + wait(0) type(AccessShareLock) +LOG: UnGrantLock: updated: lock(0xb7acd844) id(24688,24696,0,0,0,1) + grantMask(0) req(0,0,0,0,0,0,0)=0 grant(0,0,0,0,0,0,0)=0 + wait(0) type(AccessShareLock) +LOG: CleanUpLock: deleting: lock(0xb7acd844) id(24688,24696,0,0,0,1) + grantMask(0) req(0,0,0,0,0,0,0)=0 grant(0,0,0,0,0,0,0)=0 + wait(0) type(INVALID) +</screen> Details of the structure being dumped may be found in src/include/storage/lock.h </para> diff --git a/doc/src/sgml/cube.sgml b/doc/src/sgml/cube.sgml index 7c28a81f5c6425f9036fb30beff78363e7310873..1fe8ae0e06aca2bdbcc4a602afbcced716d0462e 100644 --- a/doc/src/sgml/cube.sgml +++ b/doc/src/sgml/cube.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/cube.sgml,v 1.7 2009/12/08 20:08:30 mha Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/cube.sgml,v 1.8 2010/07/29 19:34:40 petere Exp $ --> <sect1 id="cube"> <title>cube</title> @@ -98,47 +98,46 @@ <para> The <filename>cube</> module includes a GiST index operator class for <type>cube</> values. - The operators supported by the GiST opclass include: + The operators supported by the GiST opclass are shown in <xref linkend="cube-gist-operators">. </para> - <itemizedlist> - <listitem> - <programlisting> -a = b Same as - </programlisting> - <para> - The cubes a and b are identical. - </para> - </listitem> - <listitem> - <programlisting> -a && b Overlaps - </programlisting> - <para> - The cubes a and b overlap. - </para> - </listitem> - <listitem> - <programlisting> -a @> b Contains - </programlisting> - <para> - The cube a contains the cube b. - </para> - </listitem> - <listitem> - <programlisting> -a <@ b Contained in - </programlisting> - <para> - The cube a is contained in the cube b. - </para> - </listitem> - </itemizedlist> + <table id="cube-gist-operators"> + <title>Cube GiST operators</title> + <tgroup cols="2"> + <thead> + <row> + <entry>Operator</entry> + <entry>Description</entry> + </row> + </thead> + + <tbody> + <row> + <entry><literal>a = b</></entry> + <entry>The cubes a and b are identical.</entry> + </row> + + <row> + <entry><literal>a && b</></entry> + <entry>The cubes a and b overlap.</entry> + </row> + + <row> + <entry><literal>a @> b</></entry> + <entry>The cube a contains the cube b.</entry> + </row> + + <row> + <entry><literal>a <@ b</></entry> + <entry>The cube a is contained in the cube b.</entry> + </row> + </tbody> + </tgroup> + </table> <para> - (Before PostgreSQL 8.2, the containment operators @> and <@ were - respectively called @ and ~. These names are still available, but are + (Before PostgreSQL 8.2, the containment operators <literal>@></> and <literal><@</> were + respectively called <literal>@</> and <literal>~</>. These names are still available, but are deprecated and will eventually be retired. Notice that the old names are reversed from the convention formerly followed by the core geometric datatypes!) @@ -147,10 +146,28 @@ a <@ b Contained in <para> The standard B-tree operators are also provided, for example - <programlisting> -[a, b] < [c, d] Less than -[a, b] > [c, d] Greater than - </programlisting> + <informaltable> + <tgroup cols="2"> + <thead> + <row> + <entry>Operator</entry> + <entry>Description</entry> + </row> + </thead> + + <tbody> + <row> + <entry><literal>[a, b] < [c, d]</literal></entry> + <entry>Less than</entry> + </row> + + <row> + <entry><literal>[a, b] > [c, d]</literal></entry> + <entry>Greater than</entry> + </row> + </tbody> + </tgroup> + </informaltable> These operators do not make a lot of sense for any practical purpose but sorting. These operators first compare (a) to (c), diff --git a/doc/src/sgml/datatype.sgml b/doc/src/sgml/datatype.sgml index 067212915fd8ddd34d8c921a4f6dd75a3533e282..2ce1c7b6982e7a8d9353a8082d54cb03ef1e49ea 100644 --- a/doc/src/sgml/datatype.sgml +++ b/doc/src/sgml/datatype.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/datatype.sgml,v 1.254 2010/07/27 19:01:16 petere Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/datatype.sgml,v 1.255 2010/07/29 19:34:40 petere Exp $ --> <chapter id="datatype"> <title>Data Types</title> @@ -1584,21 +1584,21 @@ SELECT E'\\xDEADBEEF'; <para> The <type>interval</type> type has an additional option, which is to restrict the set of stored fields by writing one of these phrases: -<programlisting> - YEAR - MONTH - DAY - HOUR - MINUTE - SECOND - YEAR TO MONTH - DAY TO HOUR - DAY TO MINUTE - DAY TO SECOND - HOUR TO MINUTE - HOUR TO SECOND - MINUTE TO SECOND -</programlisting> +<literallayout class="monospaced"> +YEAR +MONTH +DAY +HOUR +MINUTE +SECOND +YEAR TO MONTH +DAY TO HOUR +DAY TO MINUTE +DAY TO SECOND +HOUR TO MINUTE +HOUR TO SECOND +MINUTE TO SECOND +</literallayout> Note that if both <replaceable>fields</replaceable> and <replaceable>p</replaceable> are specified, the <replaceable>fields</replaceable> must include <literal>SECOND</>, @@ -3811,7 +3811,7 @@ SELECT to_tsvector('english', 'The Fat Rats'); of the operators: <programlisting> - SELECT 'fat & rat'::tsquery; +SELECT 'fat & rat'::tsquery; tsquery --------------- 'fat' & 'rat' diff --git a/doc/src/sgml/dblink.sgml b/doc/src/sgml/dblink.sgml index e894a8cfc739464c983dd5668cffbd917c617409..25b56555889e10bc47a9c3d587af34305eed4946 100644 --- a/doc/src/sgml/dblink.sgml +++ b/doc/src/sgml/dblink.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/dblink.sgml,v 1.13 2010/06/15 20:29:01 tgl Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/dblink.sgml,v 1.14 2010/07/29 19:34:40 petere Exp $ --> <sect1 id="dblink"> <title>dblink</title> @@ -25,10 +25,10 @@ </refnamediv> <refsynopsisdiv> - <synopsis> - dblink_connect(text connstr) returns text - dblink_connect(text connname, text connstr) returns text - </synopsis> +<synopsis> +dblink_connect(text connstr) returns text +dblink_connect(text connname, text connstr) returns text +</synopsis> </refsynopsisdiv> <refsect1> @@ -116,66 +116,66 @@ <refsect1> <title>Example</title> - <programlisting> - select dblink_connect('dbname=postgres'); - dblink_connect - ---------------- - OK - (1 row) - - select dblink_connect('myconn', 'dbname=postgres'); - dblink_connect - ---------------- - OK - (1 row) - - -- FOREIGN DATA WRAPPER functionality - -- Note: local connection must require password authentication for this to work properly - -- Otherwise, you will receive the following error from dblink_connect(): - -- ---------------------------------------------------------------------- - -- ERROR: password is required - -- DETAIL: Non-superuser cannot connect if the server does not request a password. - -- HINT: Target server's authentication method must be changed. - CREATE USER dblink_regression_test WITH PASSWORD 'secret'; - CREATE FOREIGN DATA WRAPPER postgresql VALIDATOR postgresql_fdw_validator; - CREATE SERVER fdtest FOREIGN DATA WRAPPER postgresql OPTIONS (hostaddr '127.0.0.1', dbname 'contrib_regression'); - - CREATE USER MAPPING FOR dblink_regression_test SERVER fdtest OPTIONS (user 'dblink_regression_test', password 'secret'); - GRANT USAGE ON FOREIGN SERVER fdtest TO dblink_regression_test; - GRANT SELECT ON TABLE foo TO dblink_regression_test; - - \set ORIGINAL_USER :USER - \c - dblink_regression_test - SELECT dblink_connect('myconn', 'fdtest'); - dblink_connect - ---------------- - OK - (1 row) - - SELECT * FROM dblink('myconn','SELECT * FROM foo') AS t(a int, b text, c text[]); - a | b | c - ----+---+--------------- - 0 | a | {a0,b0,c0} - 1 | b | {a1,b1,c1} - 2 | c | {a2,b2,c2} - 3 | d | {a3,b3,c3} - 4 | e | {a4,b4,c4} - 5 | f | {a5,b5,c5} - 6 | g | {a6,b6,c6} - 7 | h | {a7,b7,c7} - 8 | i | {a8,b8,c8} - 9 | j | {a9,b9,c9} - 10 | k | {a10,b10,c10} - (11 rows) - - \c - :ORIGINAL_USER - REVOKE USAGE ON FOREIGN SERVER fdtest FROM dblink_regression_test; - REVOKE SELECT ON TABLE foo FROM dblink_regression_test; - DROP USER MAPPING FOR dblink_regression_test SERVER fdtest; - DROP USER dblink_regression_test; - DROP SERVER fdtest; - DROP FOREIGN DATA WRAPPER postgresql; - </programlisting> +<screen> +SELECT dblink_connect('dbname=postgres'); + dblink_connect +---------------- + OK +(1 row) + +SELECT dblink_connect('myconn', 'dbname=postgres'); + dblink_connect +---------------- + OK +(1 row) + +-- FOREIGN DATA WRAPPER functionality +-- Note: local connection must require password authentication for this to work properly +-- Otherwise, you will receive the following error from dblink_connect(): +-- ---------------------------------------------------------------------- +-- ERROR: password is required +-- DETAIL: Non-superuser cannot connect if the server does not request a password. +-- HINT: Target server's authentication method must be changed. +CREATE USER dblink_regression_test WITH PASSWORD 'secret'; +CREATE FOREIGN DATA WRAPPER postgresql VALIDATOR postgresql_fdw_validator; +CREATE SERVER fdtest FOREIGN DATA WRAPPER postgresql OPTIONS (hostaddr '127.0.0.1', dbname 'contrib_regression'); + +CREATE USER MAPPING FOR dblink_regression_test SERVER fdtest OPTIONS (user 'dblink_regression_test', password 'secret'); +GRANT USAGE ON FOREIGN SERVER fdtest TO dblink_regression_test; +GRANT SELECT ON TABLE foo TO dblink_regression_test; + +\set ORIGINAL_USER :USER +\c - dblink_regression_test +SELECT dblink_connect('myconn', 'fdtest'); + dblink_connect +---------------- + OK +(1 row) + +SELECT * FROM dblink('myconn','SELECT * FROM foo') AS t(a int, b text, c text[]); + a | b | c +----+---+--------------- + 0 | a | {a0,b0,c0} + 1 | b | {a1,b1,c1} + 2 | c | {a2,b2,c2} + 3 | d | {a3,b3,c3} + 4 | e | {a4,b4,c4} + 5 | f | {a5,b5,c5} + 6 | g | {a6,b6,c6} + 7 | h | {a7,b7,c7} + 8 | i | {a8,b8,c8} + 9 | j | {a9,b9,c9} + 10 | k | {a10,b10,c10} +(11 rows) + +\c - :ORIGINAL_USER +REVOKE USAGE ON FOREIGN SERVER fdtest FROM dblink_regression_test; +REVOKE SELECT ON TABLE foo FROM dblink_regression_test; +DROP USER MAPPING FOR dblink_regression_test SERVER fdtest; +DROP USER dblink_regression_test; +DROP SERVER fdtest; +DROP FOREIGN DATA WRAPPER postgresql; +</screen> </refsect1> </refentry> @@ -191,10 +191,10 @@ </refnamediv> <refsynopsisdiv> - <synopsis> - dblink_connect_u(text connstr) returns text - dblink_connect_u(text connname, text connstr) returns text - </synopsis> +<synopsis> +dblink_connect_u(text connstr) returns text +dblink_connect_u(text connname, text connstr) returns text +</synopsis> </refsynopsisdiv> <refsect1> @@ -244,10 +244,10 @@ </refnamediv> <refsynopsisdiv> - <synopsis> - dblink_disconnect() returns text - dblink_disconnect(text connname) returns text - </synopsis> +<synopsis> +dblink_disconnect() returns text +dblink_disconnect(text connname) returns text +</synopsis> </refsynopsisdiv> <refsect1> @@ -287,19 +287,19 @@ <refsect1> <title>Example</title> - <programlisting> - test=# select dblink_disconnect(); - dblink_disconnect - ------------------- - OK - (1 row) +<screen> +SELECT dblink_disconnect(); + dblink_disconnect +------------------- + OK +(1 row) - select dblink_disconnect('myconn'); - dblink_disconnect - ------------------- - OK - (1 row) - </programlisting> +SELECT dblink_disconnect('myconn'); + dblink_disconnect +------------------- + OK +(1 row) +</screen> </refsect1> </refentry> @@ -315,11 +315,11 @@ </refnamediv> <refsynopsisdiv> - <synopsis> - dblink(text connname, text sql [, bool fail_on_error]) returns setof record - dblink(text connstr, text sql [, bool fail_on_error]) returns setof record - dblink(text sql [, bool fail_on_error]) returns setof record - </synopsis> +<synopsis> +dblink(text connname, text sql [, bool fail_on_error]) returns setof record +dblink(text connstr, text sql [, bool fail_on_error]) returns setof record +dblink(text sql [, bool fail_on_error]) returns setof record +</synopsis> </refsynopsisdiv> <refsect1> @@ -440,89 +440,89 @@ SELECT * This allows the column type information to be buried in the view, instead of having to spell it out in every query. For example, - <programlisting> - create view myremote_pg_proc as - select * - from dblink('dbname=postgres', 'select proname, prosrc from pg_proc') - as t1(proname name, prosrc text); +<programlisting> +CREATE VIEW myremote_pg_proc AS + SELECT * + FROM dblink('dbname=postgres', 'select proname, prosrc from pg_proc') + AS t1(proname name, prosrc text); - select * from myremote_pg_proc where proname like 'bytea%'; - </programlisting> +SELECT * FROM myremote_pg_proc WHERE proname LIKE 'bytea%'; +</programlisting> </para> </refsect1> <refsect1> <title>Example</title> - <programlisting> - select * from dblink('dbname=postgres', 'select proname, prosrc from pg_proc') - as t1(proname name, prosrc text) where proname like 'bytea%'; - proname | prosrc - ------------+------------ - byteacat | byteacat - byteaeq | byteaeq - bytealt | bytealt - byteale | byteale - byteagt | byteagt - byteage | byteage - byteane | byteane - byteacmp | byteacmp - bytealike | bytealike - byteanlike | byteanlike - byteain | byteain - byteaout | byteaout - (12 rows) - - select dblink_connect('dbname=postgres'); - dblink_connect - ---------------- - OK - (1 row) - - select * from dblink('select proname, prosrc from pg_proc') - as t1(proname name, prosrc text) where proname like 'bytea%'; - proname | prosrc - ------------+------------ - byteacat | byteacat - byteaeq | byteaeq - bytealt | bytealt - byteale | byteale - byteagt | byteagt - byteage | byteage - byteane | byteane - byteacmp | byteacmp - bytealike | bytealike - byteanlike | byteanlike - byteain | byteain - byteaout | byteaout - (12 rows) - - select dblink_connect('myconn', 'dbname=regression'); - dblink_connect - ---------------- - OK - (1 row) - - select * from dblink('myconn', 'select proname, prosrc from pg_proc') - as t1(proname name, prosrc text) where proname like 'bytea%'; - proname | prosrc - ------------+------------ - bytearecv | bytearecv - byteasend | byteasend - byteale | byteale - byteagt | byteagt - byteage | byteage - byteane | byteane - byteacmp | byteacmp - bytealike | bytealike - byteanlike | byteanlike - byteacat | byteacat - byteaeq | byteaeq - bytealt | bytealt - byteain | byteain - byteaout | byteaout - (14 rows) - </programlisting> +<screen> +SELECT * FROM dblink('dbname=postgres', 'select proname, prosrc from pg_proc') + AS t1(proname name, prosrc text) WHERE proname LIKE 'bytea%'; + proname | prosrc +------------+------------ + byteacat | byteacat + byteaeq | byteaeq + bytealt | bytealt + byteale | byteale + byteagt | byteagt + byteage | byteage + byteane | byteane + byteacmp | byteacmp + bytealike | bytealike + byteanlike | byteanlike + byteain | byteain + byteaout | byteaout +(12 rows) + +SELECT dblink_connect('dbname=postgres'); + dblink_connect +---------------- + OK +(1 row) + +SELECT * FROM dblink('select proname, prosrc from pg_proc') + AS t1(proname name, prosrc text) WHERE proname LIKE 'bytea%'; + proname | prosrc +------------+------------ + byteacat | byteacat + byteaeq | byteaeq + bytealt | bytealt + byteale | byteale + byteagt | byteagt + byteage | byteage + byteane | byteane + byteacmp | byteacmp + bytealike | bytealike + byteanlike | byteanlike + byteain | byteain + byteaout | byteaout +(12 rows) + +SELECT dblink_connect('myconn', 'dbname=regression'); + dblink_connect +---------------- + OK +(1 row) + +SELECT * FROM dblink('myconn', 'select proname, prosrc from pg_proc') + AS t1(proname name, prosrc text) WHERE proname LIKE 'bytea%'; + proname | prosrc +------------+------------ + bytearecv | bytearecv + byteasend | byteasend + byteale | byteale + byteagt | byteagt + byteage | byteage + byteane | byteane + byteacmp | byteacmp + bytealike | bytealike + byteanlike | byteanlike + byteacat | byteacat + byteaeq | byteaeq + bytealt | bytealt + byteain | byteain + byteaout | byteaout +(14 rows) +</screen> </refsect1> </refentry> @@ -538,11 +538,11 @@ SELECT * </refnamediv> <refsynopsisdiv> - <synopsis> - dblink_exec(text connname, text sql [, bool fail_on_error]) returns text - dblink_exec(text connstr, text sql [, bool fail_on_error]) returns text - dblink_exec(text sql [, bool fail_on_error]) returns text - </synopsis> +<synopsis> +dblink_exec(text connname, text sql [, bool fail_on_error]) returns text +dblink_exec(text connstr, text sql [, bool fail_on_error]) returns text +dblink_exec(text sql [, bool fail_on_error]) returns text +</synopsis> </refsynopsisdiv> <refsect1> @@ -622,40 +622,40 @@ SELECT * <refsect1> <title>Example</title> - <programlisting> - select dblink_connect('dbname=dblink_test_standby'); - dblink_connect - ---------------- - OK - (1 row) - - select dblink_exec('insert into foo values(21,''z'',''{"a0","b0","c0"}'');'); - dblink_exec - ----------------- - INSERT 943366 1 - (1 row) - - select dblink_connect('myconn', 'dbname=regression'); - dblink_connect - ---------------- - OK - (1 row) - - select dblink_exec('myconn', 'insert into foo values(21,''z'',''{"a0","b0","c0"}'');'); - dblink_exec - ------------------ - INSERT 6432584 1 - (1 row) - - select dblink_exec('myconn', 'insert into pg_class values (''foo'')',false); - NOTICE: sql error - DETAIL: ERROR: null value in column "relnamespace" violates not-null constraint - - dblink_exec - ------------- - ERROR - (1 row) - </programlisting> +<screen> +SELECT dblink_connect('dbname=dblink_test_standby'); + dblink_connect +---------------- + OK +(1 row) + +SELECT dblink_exec('insert into foo values(21,''z'',''{"a0","b0","c0"}'');'); + dblink_exec +----------------- + INSERT 943366 1 +(1 row) + +SELECT dblink_connect('myconn', 'dbname=regression'); + dblink_connect +---------------- + OK +(1 row) + +SELECT dblink_exec('myconn', 'insert into foo values(21,''z'',''{"a0","b0","c0"}'');'); + dblink_exec +------------------ + INSERT 6432584 1 +(1 row) + +SELECT dblink_exec('myconn', 'insert into pg_class values (''foo'')',false); +NOTICE: sql error +DETAIL: ERROR: null value in column "relnamespace" violates not-null constraint + + dblink_exec +------------- + ERROR +(1 row) +</screen> </refsect1> </refentry> @@ -671,10 +671,10 @@ SELECT * </refnamediv> <refsynopsisdiv> - <synopsis> - dblink_open(text cursorname, text sql [, bool fail_on_error]) returns text - dblink_open(text connname, text cursorname, text sql [, bool fail_on_error]) returns text - </synopsis> +<synopsis> +dblink_open(text cursorname, text sql [, bool fail_on_error]) returns text +dblink_open(text connname, text cursorname, text sql [, bool fail_on_error]) returns text +</synopsis> </refsynopsisdiv> <refsect1> @@ -763,19 +763,19 @@ SELECT * <refsect1> <title>Example</title> - <programlisting> - test=# select dblink_connect('dbname=postgres'); - dblink_connect - ---------------- - OK - (1 row) +<screen> +SELECT dblink_connect('dbname=postgres'); + dblink_connect +---------------- + OK +(1 row) - test=# select dblink_open('foo', 'select proname, prosrc from pg_proc'); - dblink_open - ------------- - OK - (1 row) - </programlisting> +SELECT dblink_open('foo', 'select proname, prosrc from pg_proc'); + dblink_open +------------- + OK +(1 row) +</screen> </refsect1> </refentry> @@ -791,10 +791,10 @@ SELECT * </refnamediv> <refsynopsisdiv> - <synopsis> - dblink_fetch(text cursorname, int howmany [, bool fail_on_error]) returns setof record - dblink_fetch(text connname, text cursorname, int howmany [, bool fail_on_error]) returns setof record - </synopsis> +<synopsis> +dblink_fetch(text cursorname, int howmany [, bool fail_on_error]) returns setof record +dblink_fetch(text connname, text cursorname, int howmany [, bool fail_on_error]) returns setof record +</synopsis> </refsynopsisdiv> <refsect1> @@ -880,51 +880,51 @@ SELECT * <refsect1> <title>Example</title> - <programlisting> - test=# select dblink_connect('dbname=postgres'); - dblink_connect - ---------------- - OK - (1 row) - - test=# select dblink_open('foo', 'select proname, prosrc from pg_proc where proname like ''bytea%'''); - dblink_open - ------------- - OK - (1 row) - - test=# select * from dblink_fetch('foo', 5) as (funcname name, source text); - funcname | source - ----------+---------- - byteacat | byteacat - byteacmp | byteacmp - byteaeq | byteaeq - byteage | byteage - byteagt | byteagt - (5 rows) - - test=# select * from dblink_fetch('foo', 5) as (funcname name, source text); - funcname | source - -----------+----------- - byteain | byteain - byteale | byteale - bytealike | bytealike - bytealt | bytealt - byteane | byteane - (5 rows) - - test=# select * from dblink_fetch('foo', 5) as (funcname name, source text); - funcname | source - ------------+------------ - byteanlike | byteanlike - byteaout | byteaout - (2 rows) - - test=# select * from dblink_fetch('foo', 5) as (funcname name, source text); - funcname | source - ----------+-------- - (0 rows) - </programlisting> +<screen> +SELECT dblink_connect('dbname=postgres'); + dblink_connect +---------------- + OK +(1 row) + +SELECT dblink_open('foo', 'select proname, prosrc from pg_proc where proname like ''bytea%'''); + dblink_open +------------- + OK +(1 row) + +SELECT * FROM dblink_fetch('foo', 5) AS (funcname name, source text); + funcname | source +----------+---------- + byteacat | byteacat + byteacmp | byteacmp + byteaeq | byteaeq + byteage | byteage + byteagt | byteagt +(5 rows) + +SELECT * FROM dblink_fetch('foo', 5) AS (funcname name, source text); + funcname | source +-----------+----------- + byteain | byteain + byteale | byteale + bytealike | bytealike + bytealt | bytealt + byteane | byteane +(5 rows) + +SELECT * FROM dblink_fetch('foo', 5) AS (funcname name, source text); + funcname | source +------------+------------ + byteanlike | byteanlike + byteaout | byteaout +(2 rows) + +SELECT * FROM dblink_fetch('foo', 5) AS (funcname name, source text); + funcname | source +----------+-------- +(0 rows) +</screen> </refsect1> </refentry> @@ -940,10 +940,10 @@ SELECT * </refnamediv> <refsynopsisdiv> - <synopsis> - dblink_close(text cursorname [, bool fail_on_error]) returns text - dblink_close(text connname, text cursorname [, bool fail_on_error]) returns text - </synopsis> +<synopsis> +dblink_close(text cursorname [, bool fail_on_error]) returns text +dblink_close(text connname, text cursorname [, bool fail_on_error]) returns text +</synopsis> </refsynopsisdiv> <refsect1> @@ -1013,25 +1013,25 @@ SELECT * <refsect1> <title>Example</title> - <programlisting> - test=# select dblink_connect('dbname=postgres'); - dblink_connect - ---------------- - OK - (1 row) - - test=# select dblink_open('foo', 'select proname, prosrc from pg_proc'); - dblink_open - ------------- - OK - (1 row) - - test=# select dblink_close('foo'); - dblink_close - -------------- - OK - (1 row) - </programlisting> +<screen> +SELECT dblink_connect('dbname=postgres'); + dblink_connect +---------------- + OK +(1 row) + +SELECT dblink_open('foo', 'select proname, prosrc from pg_proc'); + dblink_open +------------- + OK +(1 row) + +SELECT dblink_close('foo'); + dblink_close +-------------- + OK +(1 row) +</screen> </refsect1> </refentry> @@ -1047,9 +1047,9 @@ SELECT * </refnamediv> <refsynopsisdiv> - <synopsis> - dblink_get_connections() returns text[] - </synopsis> +<synopsis> +dblink_get_connections() returns text[] +</synopsis> </refsynopsisdiv> <refsect1> @@ -1070,9 +1070,9 @@ SELECT * <refsect1> <title>Example</title> - <programlisting> - SELECT dblink_get_connections(); - </programlisting> +<programlisting> +SELECT dblink_get_connections(); +</programlisting> </refsect1> </refentry> @@ -1088,9 +1088,9 @@ SELECT * </refnamediv> <refsynopsisdiv> - <synopsis> - dblink_error_message(text connname) returns text - </synopsis> +<synopsis> +dblink_error_message(text connname) returns text +</synopsis> </refsynopsisdiv> <refsect1> @@ -1129,9 +1129,9 @@ SELECT * <refsect1> <title>Example</title> - <programlisting> - SELECT dblink_error_message('dtest1'); - </programlisting> +<programlisting> +SELECT dblink_error_message('dtest1'); +</programlisting> </refsect1> </refentry> @@ -1147,9 +1147,9 @@ SELECT * </refnamediv> <refsynopsisdiv> - <synopsis> - dblink_send_query(text connname, text sql) returns int - </synopsis> +<synopsis> +dblink_send_query(text connname, text sql) returns int +</synopsis> </refsynopsisdiv> <refsect1> @@ -1207,9 +1207,9 @@ SELECT * <refsect1> <title>Example</title> - <programlisting> - SELECT dblink_send_query('dtest1', 'SELECT * FROM foo WHERE f1 < 3'); - </programlisting> +<programlisting> +SELECT dblink_send_query('dtest1', 'SELECT * FROM foo WHERE f1 < 3'); +</programlisting> </refsect1> </refentry> @@ -1225,9 +1225,9 @@ SELECT * </refnamediv> <refsynopsisdiv> - <synopsis> - dblink_is_busy(text connname) returns int - </synopsis> +<synopsis> +dblink_is_busy(text connname) returns int +</synopsis> </refsynopsisdiv> <refsect1> @@ -1266,9 +1266,9 @@ SELECT * <refsect1> <title>Example</title> - <programlisting> - SELECT dblink_is_busy('dtest1'); - </programlisting> +<programlisting> +SELECT dblink_is_busy('dtest1'); +</programlisting> </refsect1> </refentry> @@ -1284,10 +1284,10 @@ SELECT * </refnamediv> <refsynopsisdiv> - <synopsis> - dblink_get_notify() returns setof (notify_name text, be_pid int, extra text) - dblink_get_notify(text connname) returns setof (notify_name text, be_pid int, extra text) - </synopsis> +<synopsis> +dblink_get_notify() returns setof (notify_name text, be_pid int, extra text) +dblink_get_notify(text connname) returns setof (notify_name text, be_pid int, extra text) +</synopsis> </refsynopsisdiv> <refsect1> @@ -1326,19 +1326,19 @@ SELECT * <refsect1> <title>Example</title> - <programlisting> -test=# SELECT dblink_exec('LISTEN virtual'); +<screen> +SELECT dblink_exec('LISTEN virtual'); dblink_exec ------------- LISTEN (1 row) -test=# SELECT * FROM dblink_get_notify(); +SELECT * FROM dblink_get_notify(); notify_name | be_pid | extra -------------+--------+------- (0 rows) -test=# NOTIFY virtual; +NOTIFY virtual; NOTIFY SELECT * FROM dblink_get_notify(); @@ -1346,7 +1346,7 @@ SELECT * FROM dblink_get_notify(); -------------+--------+------- virtual | 1229 | (1 row) - </programlisting> +</screen> </refsect1> </refentry> @@ -1362,9 +1362,9 @@ SELECT * FROM dblink_get_notify(); </refnamediv> <refsynopsisdiv> - <synopsis> - dblink_get_result(text connname [, bool fail_on_error]) returns setof record - </synopsis> +<synopsis> +dblink_get_result(text connname [, bool fail_on_error]) returns setof record +</synopsis> </refsynopsisdiv> <refsect1> @@ -1439,62 +1439,62 @@ SELECT * FROM dblink_get_notify(); <refsect1> <title>Example</title> - <programlisting> - contrib_regression=# SELECT dblink_connect('dtest1', 'dbname=contrib_regression'); - dblink_connect - ---------------- - OK - (1 row) - - contrib_regression=# SELECT * from - contrib_regression-# dblink_send_query('dtest1', 'select * from foo where f1 < 3') as t1; - t1 - ---- - 1 - (1 row) - - contrib_regression=# SELECT * from dblink_get_result('dtest1') as t1(f1 int, f2 text, f3 text[]); - f1 | f2 | f3 - ----+----+------------ - 0 | a | {a0,b0,c0} - 1 | b | {a1,b1,c1} - 2 | c | {a2,b2,c2} - (3 rows) - - contrib_regression=# SELECT * from dblink_get_result('dtest1') as t1(f1 int, f2 text, f3 text[]); - f1 | f2 | f3 - ----+----+---- - (0 rows) - - contrib_regression=# SELECT * from - dblink_send_query('dtest1', 'select * from foo where f1 < 3; select * from foo where f1 > 6') as t1; - t1 - ---- - 1 - (1 row) - - contrib_regression=# SELECT * from dblink_get_result('dtest1') as t1(f1 int, f2 text, f3 text[]); - f1 | f2 | f3 - ----+----+------------ - 0 | a | {a0,b0,c0} - 1 | b | {a1,b1,c1} - 2 | c | {a2,b2,c2} - (3 rows) - - contrib_regression=# SELECT * from dblink_get_result('dtest1') as t1(f1 int, f2 text, f3 text[]); - f1 | f2 | f3 - ----+----+--------------- - 7 | h | {a7,b7,c7} - 8 | i | {a8,b8,c8} - 9 | j | {a9,b9,c9} - 10 | k | {a10,b10,c10} - (4 rows) - - contrib_regression=# SELECT * from dblink_get_result('dtest1') as t1(f1 int, f2 text, f3 text[]); - f1 | f2 | f3 - ----+----+---- - (0 rows) - </programlisting> +<screen> +contrib_regression=# SELECT dblink_connect('dtest1', 'dbname=contrib_regression'); + dblink_connect +---------------- + OK +(1 row) + +contrib_regression=# SELECT * FROM +contrib_regression-# dblink_send_query('dtest1', 'select * from foo where f1 < 3') AS t1; + t1 +---- + 1 +(1 row) + +contrib_regression=# SELECT * FROM dblink_get_result('dtest1') AS t1(f1 int, f2 text, f3 text[]); + f1 | f2 | f3 +----+----+------------ + 0 | a | {a0,b0,c0} + 1 | b | {a1,b1,c1} + 2 | c | {a2,b2,c2} +(3 rows) + +contrib_regression=# SELECT * FROM dblink_get_result('dtest1') AS t1(f1 int, f2 text, f3 text[]); + f1 | f2 | f3 +----+----+---- +(0 rows) + +contrib_regression=# SELECT * FROM +contrib_regression-# dblink_send_query('dtest1', 'select * from foo where f1 < 3; select * from foo where f1 > 6') AS t1; + t1 +---- + 1 +(1 row) + +contrib_regression=# SELECT * FROM dblink_get_result('dtest1') AS t1(f1 int, f2 text, f3 text[]); + f1 | f2 | f3 +----+----+------------ + 0 | a | {a0,b0,c0} + 1 | b | {a1,b1,c1} + 2 | c | {a2,b2,c2} +(3 rows) + +contrib_regression=# SELECT * FROM dblink_get_result('dtest1') AS t1(f1 int, f2 text, f3 text[]); + f1 | f2 | f3 +----+----+--------------- + 7 | h | {a7,b7,c7} + 8 | i | {a8,b8,c8} + 9 | j | {a9,b9,c9} + 10 | k | {a10,b10,c10} +(4 rows) + +contrib_regression=# SELECT * FROM dblink_get_result('dtest1') AS t1(f1 int, f2 text, f3 text[]); + f1 | f2 | f3 +----+----+---- +(0 rows) +</screen> </refsect1> </refentry> @@ -1510,9 +1510,9 @@ SELECT * FROM dblink_get_notify(); </refnamediv> <refsynopsisdiv> - <synopsis> - dblink_cancel_query(text connname) returns text - </synopsis> +<synopsis> +dblink_cancel_query(text connname) returns text +</synopsis> </refsynopsisdiv> <refsect1> @@ -1556,9 +1556,9 @@ SELECT * FROM dblink_get_notify(); <refsect1> <title>Example</title> - <programlisting> - SELECT dblink_cancel_query('dtest1'); - </programlisting> +<programlisting> +SELECT dblink_cancel_query('dtest1'); +</programlisting> </refsect1> </refentry> @@ -1576,9 +1576,9 @@ SELECT * FROM dblink_get_notify(); </refnamediv> <refsynopsisdiv> - <synopsis> - dblink_get_pkey(text relname) returns setof dblink_pkey_results - </synopsis> +<synopsis> +dblink_get_pkey(text relname) returns setof dblink_pkey_results +</synopsis> </refsynopsisdiv> <refsect1> @@ -1617,9 +1617,9 @@ SELECT * FROM dblink_get_notify(); Returns one row for each primary key field, or no rows if the relation has no primary key. The result rowtype is defined as - <programlisting> +<programlisting> CREATE TYPE dblink_pkey_results AS (position int, colname text); - </programlisting> +</programlisting> The <literal>position</> column simply runs from 1 to <replaceable>N</>; it is the number of the field within the primary key, not the number @@ -1630,18 +1630,23 @@ CREATE TYPE dblink_pkey_results AS (position int, colname text); <refsect1> <title>Example</title> - <programlisting> -test=# create table foobar(f1 int, f2 int, f3 int, -test(# primary key(f1,f2,f3)); +<screen> +CREATE TABLE foobar ( + f1 int, + f2 int, + f3 int, + PRIMARY KEY (f1, f2, f3) +); CREATE TABLE -test=# select * from dblink_get_pkey('foobar'); + +SELECT * FROM dblink_get_pkey('foobar'); position | colname ----------+--------- 1 | f1 2 | f2 3 | f3 (3 rows) - </programlisting> +</screen> </refsect1> </refentry> @@ -1660,13 +1665,13 @@ test=# select * from dblink_get_pkey('foobar'); </refnamediv> <refsynopsisdiv> - <synopsis> - dblink_build_sql_insert(text relname, - int2vector primary_key_attnums, - integer num_primary_key_atts, - text[] src_pk_att_vals_array, - text[] tgt_pk_att_vals_array) returns text - </synopsis> +<synopsis> +dblink_build_sql_insert(text relname, + int2vector primary_key_attnums, + integer num_primary_key_atts, + text[] src_pk_att_vals_array, + text[] tgt_pk_att_vals_array) returns text +</synopsis> </refsynopsisdiv> <refsect1> @@ -1766,13 +1771,13 @@ test=# select * from dblink_get_pkey('foobar'); <refsect1> <title>Example</title> - <programlisting> - test=# select dblink_build_sql_insert('foo', '1 2', 2, '{"1", "a"}', '{"1", "b''a"}'); - dblink_build_sql_insert - -------------------------------------------------- - INSERT INTO foo(f1,f2,f3) VALUES('1','b''a','1') - (1 row) - </programlisting> +<screen> +SELECT dblink_build_sql_insert('foo', '1 2', 2, '{"1", "a"}', '{"1", "b''a"}'); + dblink_build_sql_insert +-------------------------------------------------- + INSERT INTO foo(f1,f2,f3) VALUES('1','b''a','1') +(1 row) +</screen> </refsect1> </refentry> @@ -1790,12 +1795,12 @@ test=# select * from dblink_get_pkey('foobar'); </refnamediv> <refsynopsisdiv> - <synopsis> - dblink_build_sql_delete(text relname, - int2vector primary_key_attnums, - integer num_primary_key_atts, - text[] tgt_pk_att_vals_array) returns text - </synopsis> +<synopsis> +dblink_build_sql_delete(text relname, + int2vector primary_key_attnums, + integer num_primary_key_atts, + text[] tgt_pk_att_vals_array) returns text +</synopsis> </refsynopsisdiv> <refsect1> @@ -1880,13 +1885,13 @@ test=# select * from dblink_get_pkey('foobar'); <refsect1> <title>Example</title> - <programlisting> - test=# select dblink_build_sql_delete('"MyFoo"', '1 2', 2, '{"1", "b"}'); - dblink_build_sql_delete - --------------------------------------------- - DELETE FROM "MyFoo" WHERE f1='1' AND f2='b' - (1 row) - </programlisting> +<screen> +SELECT dblink_build_sql_delete('"MyFoo"', '1 2', 2, '{"1", "b"}'); + dblink_build_sql_delete +--------------------------------------------- + DELETE FROM "MyFoo" WHERE f1='1' AND f2='b' +(1 row) +</screen> </refsect1> </refentry> @@ -1904,13 +1909,13 @@ test=# select * from dblink_get_pkey('foobar'); </refnamediv> <refsynopsisdiv> - <synopsis> - dblink_build_sql_update(text relname, - int2vector primary_key_attnums, - integer num_primary_key_atts, - text[] src_pk_att_vals_array, - text[] tgt_pk_att_vals_array) returns text - </synopsis> +<synopsis> +dblink_build_sql_update(text relname, + int2vector primary_key_attnums, + integer num_primary_key_atts, + text[] src_pk_att_vals_array, + text[] tgt_pk_att_vals_array) returns text +</synopsis> </refsynopsisdiv> <refsect1> @@ -2013,13 +2018,13 @@ test=# select * from dblink_get_pkey('foobar'); <refsect1> <title>Example</title> - <programlisting> - test=# select dblink_build_sql_update('foo', '1 2', 2, '{"1", "a"}', '{"1", "b"}'); - dblink_build_sql_update - ------------------------------------------------------------- - UPDATE foo SET f1='1',f2='b',f3='1' WHERE f1='1' AND f2='b' - (1 row) - </programlisting> +<screen> +SELECT dblink_build_sql_update('foo', '1 2', 2, '{"1", "a"}', '{"1", "b"}'); + dblink_build_sql_update +------------------------------------------------------------- + UPDATE foo SET f1='1',f2='b',f3='1' WHERE f1='1' AND f2='b' +(1 row) +</screen> </refsect1> </refentry> diff --git a/doc/src/sgml/ddl.sgml b/doc/src/sgml/ddl.sgml index ab4021ad3c1020a81779c6c2cfd37f333e38d608..7e4726da35f0aa0eab27b114f15ab6d205a63f93 100644 --- a/doc/src/sgml/ddl.sgml +++ b/doc/src/sgml/ddl.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/ddl.sgml,v 1.93 2010/04/06 02:18:04 momjian Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/ddl.sgml,v 1.94 2010/07/29 19:34:40 petere Exp $ --> <chapter id="ddl"> <title>Data Definition</title> @@ -2520,7 +2520,7 @@ CREATE TABLE measurement_y2008m01 ( ) INHERITS (measurement); just creating the partition tables as above, the table creation script should really be: - <programlisting> +<programlisting> CREATE TABLE measurement_y2006m02 ( CHECK ( logdate >= DATE '2006-02-01' AND logdate < DATE '2006-03-01' ) ) INHERITS (measurement); @@ -2545,7 +2545,7 @@ CREATE TABLE measurement_y2008m01 ( <para> We probably need indexes on the key columns too: - <programlisting> +<programlisting> CREATE INDEX measurement_y2006m02_logdate ON measurement_y2006m02 (logdate); CREATE INDEX measurement_y2006m03_logdate ON measurement_y2006m03 (logdate); ... diff --git a/doc/src/sgml/dict-xsyn.sgml b/doc/src/sgml/dict-xsyn.sgml index 7df6959d3df2a4f99f993b036fb8c802fda0b4c4..0ac839403fa92201875c566fb4eb67fcc3593947 100644 --- a/doc/src/sgml/dict-xsyn.sgml +++ b/doc/src/sgml/dict-xsyn.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/dict-xsyn.sgml,v 1.3 2009/08/05 18:06:49 tgl Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/dict-xsyn.sgml,v 1.4 2010/07/29 19:34:40 petere Exp $ --> <sect1 id="dict-xsyn"> <title>dict_xsyn</title> @@ -64,9 +64,9 @@ <para> Each line represents a group of synonyms for a single word, which is given first on the line. Synonyms are separated by whitespace, thus: - <programlisting> +<programlisting> word syn1 syn2 syn3 - </programlisting> +</programlisting> </para> </listitem> <listitem> diff --git a/doc/src/sgml/ecpg.sgml b/doc/src/sgml/ecpg.sgml index 7c8b02802d8037e62e5706e9486172a4e2d65a49..7ae64bd249324e01aabab1bf25b2b875b0a61698 100644 --- a/doc/src/sgml/ecpg.sgml +++ b/doc/src/sgml/ecpg.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/ecpg.sgml,v 1.100 2010/05/13 14:16:41 mha Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/ecpg.sgml,v 1.101 2010/07/29 19:34:40 petere Exp $ --> <chapter id="ecpg"> <title><application>ECPG</application> - Embedded <acronym>SQL</acronym> in C</title> @@ -2857,11 +2857,11 @@ struct sqlname the dollar sign instead of the <literal>EXEC SQL</> primitive to introduce embedded SQL commands.: <programlisting> - $int j = 3; - $CONNECT TO :dbname; - $CREATE TABLE test(i INT PRIMARY KEY, j INT); - $INSERT INTO test(i, j) VALUES (7, :j); - $COMMIT; +$int j = 3; +$CONNECT TO :dbname; +$CREATE TABLE test(i INT PRIMARY KEY, j INT); +$INSERT INTO test(i, j) VALUES (7, :j); +$COMMIT; </programlisting> </para> <para> @@ -2898,11 +2898,11 @@ struct sqlname supported in Informix-mode without using <literal>typedef</literal>. In fact, in Informix-mode, ECPG refuses to process source files that contain <literal>typedef sometype string;</literal> <programlisting> - EXEC SQL BEGIN DECLARE SECTION; - string userid; /* this variable will contain trimmed data */ - EXEC SQL END DECLARE SECTION; +EXEC SQL BEGIN DECLARE SECTION; +string userid; /* this variable will contain trimmed data */ +EXEC SQL END DECLARE SECTION; - EXEC SQL FETCH MYCUR INTO :userid; +EXEC SQL FETCH MYCUR INTO :userid; </programlisting> </para> </sect2> @@ -2918,8 +2918,8 @@ struct sqlname This statement closes the current connection. In fact, this is a synonym for ecpg's <literal>DISCONNECT CURRENT</>.: <programlisting> - $CLOSE DATABASE; /* close the current connection */ - EXEC SQL CLOSE DATABASE; +$CLOSE DATABASE; /* close the current connection */ +EXEC SQL CLOSE DATABASE; </programlisting> </para> </listitem> @@ -3083,15 +3083,15 @@ typedef struct sqlda_compat sqlda_t; Pointer to the field data. The pointer is of <literal>char *</literal> type, the data pointed by it is in a binary format. Example: <programlisting> - int intval; +int intval; - switch (sqldata->sqlvar[i].sqltype) - { - case SQLINTEGER: +switch (sqldata->sqlvar[i].sqltype) +{ + case SQLINTEGER: intval = *(int *)sqldata->sqlvar[i].sqldata; break; - ... - } + ... +} </programlisting> </para> </listitem> @@ -3106,8 +3106,8 @@ typedef struct sqlda_compat sqlda_t; that the value for this field is non-NULL. Otherwise a valid pointer and <literal>sqlitype</literal> has to be properly set. Example: <programlisting> - if (*(int2 *)sqldata->sqlvar[i].sqlind != 0) - printf("value is NULL\n"); +if (*(int2 *)sqldata->sqlvar[i].sqlind != 0) + printf("value is NULL\n"); </programlisting> </para> </listitem> @@ -5208,13 +5208,13 @@ EXEC SQL UPDATE Tbl SET col = MYNUMBER; <para> Example: <programlisting> - exec sql ifndef TZVAR; - exec sql SET TIMEZONE TO 'GMT'; - exec sql elif TZNAME; - exec sql SET TIMEZONE TO TZNAME; - exec sql else; - exec sql SET TIMEZONE TO TZVAR; - exec sql endif; +EXEC SQL ifndef TZVAR; +EXEC SQL SET TIMEZONE TO 'GMT'; +EXEC SQL elif TZNAME; +EXEC SQL SET TIMEZONE TO TZNAME; +EXEC SQL else; +EXEC SQL SET TIMEZONE TO TZVAR; +EXEC SQL endif; </programlisting> </para> diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml index 659da49a8498739108996799572b4cc3c327f72e..dbe0d460698151690b8d66c21930ec64c320573a 100644 --- a/doc/src/sgml/func.sgml +++ b/doc/src/sgml/func.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.521 2010/07/03 17:21:48 momjian Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.522 2010/07/29 19:34:40 petere Exp $ --> <chapter id="functions"> <title>Functions and Operators</title> @@ -8228,9 +8228,9 @@ SELECT xmlcomment('hello'); <primary>xmlconcat</primary> </indexterm> - <synopsis> - <function>xmlconcat</function>(<replaceable>xml</replaceable><optional>, ...</optional>) - </synopsis> +<synopsis> +<function>xmlconcat</function>(<replaceable>xml</replaceable><optional>, ...</optional>) +</synopsis> <para> The function <function>xmlconcat</function> concatenates a list @@ -8286,8 +8286,8 @@ SELECT xmlconcat('<?xml version="1.1"?><foo/>', '<?xml version="1.1" standalone= </indexterm> <synopsis> - <function>xmlelement</function>(name <replaceable>name</replaceable> <optional>, xmlattributes(<replaceable>value</replaceable> <optional>AS <replaceable>attname</replaceable></optional> <optional>, ... </optional>)</optional> <optional><replaceable>, content, ...</replaceable></optional>) - </synopsis> +<function>xmlelement</function>(name <replaceable>name</replaceable> <optional>, xmlattributes(<replaceable>value</replaceable> <optional>AS <replaceable>attname</replaceable></optional> <optional>, ... </optional>)</optional> <optional><replaceable>, content, ...</replaceable></optional>) +</synopsis> <para> The <function>xmlelement</function> expression produces an XML @@ -8383,9 +8383,9 @@ SELECT xmlelement(name foo, xmlattributes('xyz' as bar), <primary>xmlforest</primary> </indexterm> - <synopsis> - <function>xmlforest</function>(<replaceable>content</replaceable> <optional>AS <replaceable>name</replaceable></optional> <optional>, ...</optional>) - </synopsis> +<synopsis> +<function>xmlforest</function>(<replaceable>content</replaceable> <optional>AS <replaceable>name</replaceable></optional> <optional>, ...</optional>) +</synopsis> <para> The <function>xmlforest</function> expression produces an XML @@ -8440,9 +8440,9 @@ WHERE table_schema = 'pg_catalog'; <primary>xmlpi</primary> </indexterm> - <synopsis> - <function>xmlpi</function>(name <replaceable>target</replaceable> <optional>, <replaceable>content</replaceable></optional>) - </synopsis> +<synopsis> +<function>xmlpi</function>(name <replaceable>target</replaceable> <optional>, <replaceable>content</replaceable></optional>) +</synopsis> <para> The <function>xmlpi</function> expression creates an XML @@ -8469,9 +8469,9 @@ SELECT xmlpi(name php, 'echo "hello world";'); <primary>xmlroot</primary> </indexterm> - <synopsis> - <function>xmlroot</function>(<replaceable>xml</replaceable>, version <replaceable>text</replaceable> | no value <optional>, standalone yes|no|no value</optional>) - </synopsis> +<synopsis> +<function>xmlroot</function>(<replaceable>xml</replaceable>, version <replaceable>text</replaceable> | no value <optional>, standalone yes|no|no value</optional>) +</synopsis> <para> The <function>xmlroot</function> expression alters the properties diff --git a/doc/src/sgml/fuzzystrmatch.sgml b/doc/src/sgml/fuzzystrmatch.sgml index 0349f12c5f934820ba3d46aa97f710e2e97ed3d4..e0a8cea9ad872801f2b5d690eac8f21e65ef1281 100644 --- a/doc/src/sgml/fuzzystrmatch.sgml +++ b/doc/src/sgml/fuzzystrmatch.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/fuzzystrmatch.sgml,v 1.5 2009/04/06 15:43:00 tgl Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/fuzzystrmatch.sgml,v 1.6 2010/07/29 19:34:40 petere Exp $ --> <sect1 id="fuzzystrmatch"> <title>fuzzystrmatch</title> @@ -34,10 +34,10 @@ for working with Soundex codes: </para> - <programlisting> - soundex(text) returns text - difference(text, text) returns int - </programlisting> +<synopsis> +soundex(text) returns text +difference(text, text) returns int +</synopsis> <para> The <function>soundex</> function converts a string to its Soundex code. @@ -53,7 +53,7 @@ Here are some usage examples: </para> - <programlisting> +<programlisting> SELECT soundex('hello world!'); SELECT soundex('Anne'), soundex('Ann'), difference('Anne', 'Ann'); @@ -70,7 +70,7 @@ INSERT INTO s VALUES ('jack'); SELECT * FROM s WHERE soundex(nm) = soundex('john'); SELECT * FROM s WHERE difference(s.nm, 'john') > 2; - </programlisting> +</programlisting> </sect2> <sect2> @@ -80,10 +80,10 @@ SELECT * FROM s WHERE difference(s.nm, 'john') > 2; This function calculates the Levenshtein distance between two strings: </para> - <programlisting> - levenshtein(text source, text target, int ins_cost, int del_cost, int sub_cost) returns int - levenshtein(text source, text target) returns int - </programlisting> +<synopsis> +levenshtein(text source, text target, int ins_cost, int del_cost, int sub_cost) returns int +levenshtein(text source, text target) returns int +</synopsis> <para> Both <literal>source</literal> and <literal>target</literal> can be any @@ -97,7 +97,7 @@ SELECT * FROM s WHERE difference(s.nm, 'john') > 2; Examples: </para> - <programlisting> +<screen> test=# SELECT levenshtein('GUMBO', 'GAMBOL'); levenshtein ------------- @@ -109,7 +109,7 @@ test=# SELECT levenshtein('GUMBO', 'GAMBOL', 2,1,1); ------------- 3 (1 row) - </programlisting> +</screen> </sect2> <sect2> @@ -125,9 +125,9 @@ test=# SELECT levenshtein('GUMBO', 'GAMBOL', 2,1,1); This function calculates the metaphone code of an input string: </para> - <programlisting> - metaphone(text source, int max_output_length) returns text - </programlisting> +<synopsis> +metaphone(text source, int max_output_length) returns text +</synopsis> <para> <literal>source</literal> has to be a non-null string with a maximum of @@ -140,13 +140,13 @@ test=# SELECT levenshtein('GUMBO', 'GAMBOL', 2,1,1); Example: </para> - <programlisting> +<screen> test=# SELECT metaphone('GUMBO', 4); metaphone ----------- KM (1 row) - </programlisting> +</screen> </sect2> <sect2> @@ -160,10 +160,10 @@ test=# SELECT metaphone('GUMBO', 4); These functions compute the primary and alternate codes: </para> - <programlisting> - dmetaphone(text source) returns text - dmetaphone_alt(text source) returns text - </programlisting> +<synopsis> +dmetaphone(text source) returns text +dmetaphone_alt(text source) returns text +</synopsis> <para> There is no length limit on the input strings. @@ -173,13 +173,13 @@ test=# SELECT metaphone('GUMBO', 4); Example: </para> - <programlisting> +<screen> test=# select dmetaphone('gumbo'); dmetaphone ------------ KMP (1 row) - </programlisting> +</screen> </sect2> </sect1> diff --git a/doc/src/sgml/hstore.sgml b/doc/src/sgml/hstore.sgml index c5effb88e051d5d5c613fa2b964db7a8b2c4c2aa..4cdea493e5d8a46d97bb179fd7ae7ff6b9a3f9cf 100644 --- a/doc/src/sgml/hstore.sgml +++ b/doc/src/sgml/hstore.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/hstore.sgml,v 1.12 2010/07/02 20:36:49 rhaas Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/hstore.sgml,v 1.13 2010/07/29 19:34:40 petere Exp $ --> <sect1 id="hstore"> <title>hstore</title> @@ -24,11 +24,11 @@ includes zero or more <replaceable>key</> <literal>=></> <replaceable>value</> pairs separated by commas. Some examples: - <programlisting> - k => v - foo => bar, baz => whatever - "1-a" => "anything at all" - </programlisting> +<synopsis> +k => v +foo => bar, baz => whatever +"1-a" => "anything at all" +</synopsis> The order of the pairs is not significant (and may not be reproduced on output). Whitespace between pairs or around the <literal>=></> sign is @@ -42,23 +42,23 @@ with duplicate keys, only one will be stored in the <type>hstore</> and there is no guarantee as to which will be kept: - <programlisting> -% select 'a=>1,a=>2'::hstore; +<programlisting> +SELECT 'a=>1,a=>2'::hstore; hstore ---------- "a"=>"1" - </programlisting> +</programlisting> </para> <para> A value (but not a key) can be an SQL <literal>NULL</>. For example: - <programlisting> - key => NULL - </programlisting> +<programlisting> +key => NULL +</programlisting> The <literal>NULL</> keyword is case-insensitive. Double-quote the - <literal>NULL</> to treat it as the ordinary string "NULL". + <literal>NULL</> to treat it as the ordinary string <quote>NULL</quote>. </para> <note> @@ -421,11 +421,11 @@ b <type>hstore</> has GiST and GIN index support for the <literal>@></>, <literal>?</>, <literal>?&</> and <literal>?|</> operators. For example: </para> - <programlisting> +<programlisting> CREATE INDEX hidx ON testhstore USING GIST (h); CREATE INDEX hidx ON testhstore USING GIN (h); - </programlisting> +</programlisting> <para> <type>hstore</> also supports <type>btree</> or <type>hash</> indexes for @@ -436,11 +436,11 @@ CREATE INDEX hidx ON testhstore USING GIN (h); may be useful for equivalence lookups. Create indexes for <literal>=</> comparisons as follows: </para> - <programlisting> +<programlisting> CREATE INDEX hidx ON testhstore USING BTREE (h); CREATE INDEX hidx ON testhstore USING HASH (h); - </programlisting> +</programlisting> </sect2> <sect2> @@ -448,22 +448,21 @@ CREATE INDEX hidx ON testhstore USING HASH (h); <para> Add a key, or update an existing key with a new value: - </para> - <programlisting> +<programlisting> UPDATE tab SET h = h || ('c' => '3'); - </programlisting> +</programlisting> + </para> <para> Delete a key: - </para> - <programlisting> +<programlisting> UPDATE tab SET h = delete(h, 'k1'); - </programlisting> +</programlisting> + </para> <para> Convert a <type>record</> to an <type>hstore</>: - </para> - <programlisting> +<programlisting> CREATE TABLE test (col1 integer, col2 text, col3 text); INSERT INTO test VALUES (123, 'foo', 'bar'); @@ -472,12 +471,12 @@ SELECT hstore(t) FROM test AS t; --------------------------------------------- "col1"=>"123", "col2"=>"foo", "col3"=>"bar" (1 row) - </programlisting> +</programlisting> + </para> <para> Convert an <type>hstore</> to a predefined <type>record</> type: - </para> - <programlisting> +<programlisting> CREATE TABLE test (col1 integer, col2 text, col3 text); SELECT * FROM populate_record(null::test, @@ -486,12 +485,12 @@ SELECT * FROM populate_record(null::test, ------+------+------ 456 | zzz | (1 row) - </programlisting> +</programlisting> + </para> <para> Modify an existing record using the values from an <type>hstore</>: - </para> - <programlisting> +<programlisting> CREATE TABLE test (col1 integer, col2 text, col3 text); INSERT INTO test VALUES (123, 'foo', 'bar'); @@ -500,7 +499,8 @@ SELECT (r).* FROM (SELECT t #= '"col3"=>"baz"' AS r FROM test t) s; ------+------+------ 123 | foo | baz (1 row) - </programlisting> +</programlisting> + </para> </sect2> <sect2> @@ -515,22 +515,21 @@ SELECT (r).* FROM (SELECT t #= '"col3"=>"baz"' AS r FROM test t) s; <para> Simple example: - </para> - <programlisting> +<programlisting> SELECT * FROM each('aaa=>bq, b=>NULL, ""=>1'); - </programlisting> +</programlisting> + </para> <para> Using a table: - </para> - <programlisting> +<programlisting> SELECT (each(h)).key, (each(h)).value INTO stat FROM testhstore; - </programlisting> +</programlisting> + </para> <para> Online statistics: - </para> - <programlisting> +<programlisting> SELECT key, count(*) FROM (SELECT (each(h)).key FROM testhstore) AS stat GROUP BY key @@ -547,7 +546,8 @@ SELECT key, count(*) FROM title | 190 org | 189 ................... - </programlisting> +</programlisting> + </para> </sect2> <sect2> @@ -572,16 +572,16 @@ SELECT key, count(*) FROM performance penalty when processing data that has not yet been modified by the new code. It is possible to force an upgrade of all values in a table column by doing an <literal>UPDATE</> statement as follows: - </para> - <programlisting> +<programlisting> UPDATE tablename SET hstorecol = hstorecol || ''; - </programlisting> +</programlisting> + </para> <para> Another way to do it is: - <programlisting> +<programlisting> ALTER TABLE tablename ALTER hstorecol TYPE hstore USING hstorecol || ''; - </programlisting> +</programlisting> The <command>ALTER TABLE</> method requires an exclusive lock on the table, but does not result in bloating the table with old row versions. </para> diff --git a/doc/src/sgml/indexam.sgml b/doc/src/sgml/indexam.sgml index 93f3411a2d0c21ffcd8ebf0e6275147487693311..a9d08748a7a2dff2eb0b3707f6d5fc5ab3bc2758 100644 --- a/doc/src/sgml/indexam.sgml +++ b/doc/src/sgml/indexam.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/indexam.sgml,v 2.33 2010/02/08 04:33:51 tgl Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/indexam.sgml,v 2.34 2010/07/29 19:34:40 petere Exp $ --> <chapter id="indexam"> <title>Index Access Method Interface Definition</title> @@ -1027,16 +1027,16 @@ amcostestimate (PlannerInfo *root, Compute the index access cost. A generic estimator might do this: <programlisting> - /* - * Our generic assumption is that the index pages will be read - * sequentially, so they cost seq_page_cost each, not random_page_cost. - * Also, we charge for evaluation of the indexquals at each index row. - * All the costs are assumed to be paid incrementally during the scan. - */ - cost_qual_eval(&index_qual_cost, indexQuals, root); - *indexStartupCost = index_qual_cost.startup; - *indexTotalCost = seq_page_cost * numIndexPages + - (cpu_index_tuple_cost + index_qual_cost.per_tuple) * numIndexTuples; +/* + * Our generic assumption is that the index pages will be read + * sequentially, so they cost seq_page_cost each, not random_page_cost. + * Also, we charge for evaluation of the indexquals at each index row. + * All the costs are assumed to be paid incrementally during the scan. + */ +cost_qual_eval(&index_qual_cost, indexQuals, root); +*indexStartupCost = index_qual_cost.startup; +*indexTotalCost = seq_page_cost * numIndexPages + + (cpu_index_tuple_cost + index_qual_cost.per_tuple) * numIndexTuples; </programlisting> However, the above does not account for amortization of index reads diff --git a/doc/src/sgml/install-win32.sgml b/doc/src/sgml/install-win32.sgml index 5554c2c9f43d816f5550d3ccefb2f48e3ccf12d3..d88f6ef14dfbfe67545ac4fca47a72b2d8dfc29d 100644 --- a/doc/src/sgml/install-win32.sgml +++ b/doc/src/sgml/install-win32.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/install-win32.sgml,v 1.58 2010/07/27 19:01:16 petere Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/install-win32.sgml,v 1.59 2010/07/29 19:34:40 petere Exp $ --> <chapter id="install-win32"> <title>Installation from Source Code on <productname>Windows</productname></title> @@ -102,9 +102,9 @@ and then apply any changes from <filename>config.pl</filename>. For example, to specify the location of your <productname>Python</productname> installation, put the following in <filename>config.pl</filename>: - <screen> - $config->{python} = 'c:\python26'; - </screen> +<programlisting> +$config->{python} = 'c:\python26'; +</programlisting> You only need to specify those parameters that are different from what's in <filename>config_default.pl</filename>. </para> @@ -114,9 +114,9 @@ <filename>buildenv.pl</filename> and put the required commands there. For example, to add the path for bison when it's not in the PATH, create a file containing: - <screen> - $ENV{PATH}=$ENV{PATH} . ';c:\some\where\bison\bin'; - </screen> +<programlisting> +$ENV{PATH}=$ENV{PATH} . ';c:\some\where\bison\bin'; +</programlisting> </para> <sect2> @@ -292,43 +292,31 @@ <para> To build all of PostgreSQL in release configuration (the default), run the command: - <screen> - <userinput> - build - </userinput> - </screen> +<screen> +<userinput>build</userinput> +</screen> To build all of PostgreSQL in debug configuration, run the command: - <screen> - <userinput> - build DEBUG - </userinput> - </screen> +<screen> +<userinput>build DEBUG</userinput> +</screen> To build just a single project, for example psql, run the commands: - <screen> - <userinput> - build psql - </userinput> - <userinput> - build DEBUG psql - </userinput> - </screen> +<screen> +<userinput>build psql</userinput> +<userinput>build DEBUG psql</userinput> +</screen> To change the default build configuration to debug, put the following in the <filename>buildenv.pl</filename> file: - <screen> - <userinput> - $ENV{CONFIG}="Debug"; - </userinput> - </screen> +<programlisting> +$ENV{CONFIG}="Debug"; +</programlisting> </para> <para> It is also possible to build from inside the Visual Studio GUI. In this case, you need to run: - <screen> - <userinput> - perl mkvcbuild.pl - </userinput> - </screen> +<screen> +<userinput>perl mkvcbuild.pl</userinput> +</screen> from the command prompt, and then open the generated <filename>pgsql.sln</filename> (in the root directory of the source tree) in Visual Studio. @@ -354,11 +342,9 @@ <filename>debug</filename> or <filename>release</filename> directories. To install these files using the standard layout, and also generate the files required to initialize and use the database, run the command: - <screen> - <userinput> - install c:\destination\directory - </userinput> - </screen> +<screen> +<userinput>install c:\destination\directory</userinput> +</screen> </para> </sect2> @@ -373,28 +359,18 @@ the <filename>buildenv.pl</filename> file. To run the tests, run one of the following commands from the <filename>src\tools\msvc</filename> directory: - <screen> - <userinput> - vcregress check - </userinput> - <userinput> - vcregress installcheck - </userinput> - <userinput> - vcregress plcheck - </userinput> - <userinput> - vcregress contribcheck - </userinput> - </screen> +<screen> +<userinput>vcregress check</userinput> +<userinput>vcregress installcheck</userinput> +<userinput>vcregress plcheck</userinput> +<userinput>vcregress contribcheck</userinput> +</screen> To change the schedule used (default is parallel), append it to the command line like: - <screen> - <userinput> - vcregress check serial - </userinput> - </screen> +<screen> +<userinput>vcregress check serial</userinput> +</screen> For more information about the regression tests, see <xref linkend="regress">. @@ -448,9 +424,9 @@ </variablelist> Edit the <filename>buildenv.pl</filename> file, and add a variable for the location of the root directory, for example: - <screen> - $ENV{DOCROOT}='c:\docbook'; - </screen> +<programlisting> +$ENV{DOCROOT}='c:\docbook'; +</programlisting> To build the documentation, run the command <filename>builddoc.bat</filename>. Note that this will actually run the build twice, in order to generate the indexes. The generated HTML files diff --git a/doc/src/sgml/intagg.sgml b/doc/src/sgml/intagg.sgml index b33e7c62de7c3c4d3c783addcf00d75e015fad7a..84dcace33579021cd5ad66704b4a3049b7e3ff3f 100644 --- a/doc/src/sgml/intagg.sgml +++ b/doc/src/sgml/intagg.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/intagg.sgml,v 1.4 2008/11/14 19:58:45 tgl Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/intagg.sgml,v 1.5 2010/07/29 19:34:40 petere Exp $ --> <sect1 id="intagg"> <title>intagg</title> @@ -44,24 +44,20 @@ <para> Many database systems have the notion of a one to many table. Such a table usually sits between two indexed tables, for example: - </para> - <programlisting> +<programlisting> CREATE TABLE left (id INT PRIMARY KEY, ...); CREATE TABLE right (id INT PRIMARY KEY, ...); CREATE TABLE one_to_many(left INT REFERENCES left, right INT REFERENCES right); - </programlisting> +</programlisting> - <para> It is typically used like this: - </para> - <programlisting> - SELECT right.* from right JOIN one_to_many ON (right.id = one_to_many.right) - WHERE one_to_many.left = <replaceable>item</>; - </programlisting> +<programlisting> +SELECT right.* from right JOIN one_to_many ON (right.id = one_to_many.right) + WHERE one_to_many.left = <replaceable>item</>; +</programlisting> - <para> This will return all the items in the right hand table for an entry in the left hand table. This is a very common construct in SQL. </para> @@ -74,35 +70,29 @@ CREATE TABLE one_to_many(left INT REFERENCES left, right INT REFERENCES right); left hand entry. If you have a very dynamic system, there is not much you can do. However, if you have some data which is fairly static, you can create a summary table with the aggregator. - </para> - <programlisting> -CREATE TABLE summary as +<programlisting> +CREATE TABLE summary AS SELECT left, int_array_aggregate(right) AS right FROM one_to_many GROUP BY left; - </programlisting> +</programlisting> - <para> This will create a table with one row per left item, and an array of right items. Now this is pretty useless without some way of using the array; that's why there is an array enumerator. You can do - </para> - <programlisting> +<programlisting> SELECT left, int_array_enum(right) FROM summary WHERE left = <replaceable>item</>; - </programlisting> +</programlisting> - <para> The above query using <function>int_array_enum</> produces the same results as - </para> - <programlisting> +<programlisting> SELECT left, right FROM one_to_many WHERE left = <replaceable>item</>; - </programlisting> +</programlisting> - <para> The difference is that the query against the summary table has to get only one row from the table, whereas the direct query against <structname>one_to_many</> must index scan and fetch a row for each entry. @@ -112,9 +102,8 @@ SELECT left, right FROM one_to_many WHERE left = <replaceable>item</>; On one system, an <command>EXPLAIN</> showed a query with a cost of 8488 was reduced to a cost of 329. The original query was a join involving the <structname>one_to_many</> table, which was replaced by: - </para> - <programlisting> +<programlisting> SELECT right, count(right) FROM ( SELECT left, int_array_enum(right) AS right FROM summary JOIN (SELECT left FROM left_table WHERE left = <replaceable>item</>) AS lefts @@ -122,7 +111,8 @@ SELECT right, count(right) FROM ) AS list GROUP BY right ORDER BY count DESC; - </programlisting> +</programlisting> + </para> </sect2> diff --git a/doc/src/sgml/intarray.sgml b/doc/src/sgml/intarray.sgml index 8dda468fe36752a2ba7452ed5046c9acfece3c54..b941bb0dc4bcce9df81f8f72cf396363d0a246ba 100644 --- a/doc/src/sgml/intarray.sgml +++ b/doc/src/sgml/intarray.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/intarray.sgml,v 1.10 2010/05/05 15:10:25 heikki Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/intarray.sgml,v 1.11 2010/07/29 19:34:40 petere Exp $ --> <sect1 id="intarray"> <title>intarray</title> @@ -271,7 +271,7 @@ <sect2> <title>Example</title> - <programlisting> +<programlisting> -- a message can be in one or more <quote>sections</> CREATE TABLE message (mid INT PRIMARY KEY, sections INT[], ...); @@ -286,7 +286,7 @@ SELECT message.mid FROM message WHERE message.sections @> '{1,2}'; -- the same, using QUERY operator SELECT message.mid FROM message WHERE message.sections @@ '1&2'::query_int; - </programlisting> +</programlisting> </sect2> <sect2> @@ -297,13 +297,13 @@ SELECT message.mid FROM message WHERE message.sections @@ '1&2'::query_int; benchmark test suite. To run: </para> - <programlisting> - cd .../bench - createdb TEST - psql TEST < ../_int.sql - ./create_test.pl | psql TEST - ./bench.pl - </programlisting> +<programlisting> +cd .../bench +createdb TEST +psql TEST < ../_int.sql +./create_test.pl | psql TEST +./bench.pl +</programlisting> <para> The <filename>bench.pl</> script has numerous options, which diff --git a/doc/src/sgml/isn.sgml b/doc/src/sgml/isn.sgml index 8469a98825a7b8f115003d461e2ee74da4422b7e..4771c798eb26f5f1c91c2bd406fbcaabe544938c 100644 --- a/doc/src/sgml/isn.sgml +++ b/doc/src/sgml/isn.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/isn.sgml,v 1.5 2009/05/18 11:08:24 petere Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/isn.sgml,v 1.6 2010/07/29 19:34:40 petere Exp $ --> <sect1 id="isn"> <title>isn</title> @@ -295,7 +295,7 @@ <sect2> <title>Examples</title> - <programlisting> +<programlisting> --Using the types directly: SELECT isbn('978-0-393-04002-9'); SELECT isbn13('0901690546'); @@ -333,7 +333,7 @@ UPDATE test SET id = make_valid(id) WHERE id = '2-205-00876-X!'; SELECT * FROM test; SELECT isbn13(id) FROM test; - </programlisting> +</programlisting> </sect2> <sect2> @@ -342,24 +342,20 @@ SELECT isbn13(id) FROM test; <para> The information to implement this module was collected from several sites, including: - </para> - <programlisting> - http://www.isbn-international.org/ - http://www.issn.org/ - http://www.ismn-international.org/ - http://www.wikipedia.org/ - </programlisting> + <itemizedlist> + <listitem><para><ulink url="http://www.isbn-international.org/"></ulink></para></listitem> + <listitem><para><ulink url="http://www.issn.org/"></ulink></para></listitem> + <listitem><para><ulink url="http://www.ismn-international.org/"></ulink></para></listitem> + <listitem><para><ulink url="http://www.wikipedia.org/"></ulink></para></listitem> + </itemizedlist> - <para> The prefixes used for hyphenation were also compiled from: - </para> - <programlisting> - http://www.gs1.org/productssolutions/idkeys/support/prefix_list.html - http://www.isbn-international.org/en/identifiers.html - http://www.ismn-international.org/ranges.html - </programlisting> + <itemizedlist> + <listitem><para><ulink url="http://www.gs1.org/productssolutions/idkeys/support/prefix_list.html"></ulink></para></listitem> + <listitem><para><ulink url="http://www.isbn-international.org/en/identifiers.html"></ulink></para></listitem> + <listitem><para><ulink url="http://www.ismn-international.org/ranges.html"></ulink></para></listitem> + </itemizedlist> - <para> Care was taken during the creation of the algorithms and they were meticulously verified against the suggested algorithms in the official ISBN, ISMN, ISSN User Manuals. diff --git a/doc/src/sgml/libpq.sgml b/doc/src/sgml/libpq.sgml index eebc2c9604ef11f6354747101083bd68dd8bd953..407529164e04e86f78c62c2a2a3f4e885b264c2c 100644 --- a/doc/src/sgml/libpq.sgml +++ b/doc/src/sgml/libpq.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/libpq.sgml,v 1.316 2010/07/27 19:01:16 petere Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/libpq.sgml,v 1.317 2010/07/29 19:34:40 petere Exp $ --> <chapter id="libpq"> <title><application>libpq</application> - C Library</title> @@ -97,9 +97,9 @@ <para> Makes a new connection to the database server. - <synopsis> - PGconn *PQconnectdbParams(const char **keywords, const char **values, int expand_dbname); - </synopsis> +<synopsis> +PGconn *PQconnectdbParams(const char **keywords, const char **values, int expand_dbname); +</synopsis> </para> <para> @@ -600,9 +600,9 @@ <para> Makes a new connection to the database server. - <synopsis> - PGconn *PQconnectdb(const char *conninfo); - </synopsis> +<synopsis> +PGconn *PQconnectdb(const char *conninfo); +</synopsis> </para> <para> @@ -690,17 +690,13 @@ PGconn *PQsetdb(char *pghost, <indexterm><primary>nonblocking connection</primary></indexterm> Make a connection to the database server in a nonblocking manner. - <synopsis> - PGconn *PQconnectStartParams(const char **keywords, const char **values, int expand_dbname); - </synopsis> +<synopsis> +PGconn *PQconnectStartParams(const char **keywords, const char **values, int expand_dbname); - <synopsis> - PGconn *PQconnectStart(const char *conninfo); - </synopsis> +PGconn *PQconnectStart(const char *conninfo); - <synopsis> - PostgresPollingStatusType PQconnectPoll(PGconn *conn); - </synopsis> +PostgresPollingStatusType PQconnectPoll(PGconn *conn); +</synopsis> </para> <para> @@ -995,9 +991,9 @@ PQconninfoOption *PQconninfoParse(const char *conninfo, char **errmsg); <para> Closes the connection to the server. Also frees memory used by the <structname>PGconn</structname> object. - <synopsis> - void PQfinish(PGconn *conn); - </synopsis> +<synopsis> +void PQfinish(PGconn *conn); +</synopsis> </para> <para> @@ -1015,9 +1011,9 @@ PQconninfoOption *PQconninfoParse(const char *conninfo, char **errmsg); <listitem> <para> Resets the communication channel to the server. - <synopsis> - void PQreset(PGconn *conn); - </synopsis> +<synopsis> +void PQreset(PGconn *conn); +</synopsis> </para> <para> @@ -1037,12 +1033,11 @@ PQconninfoOption *PQconninfoParse(const char *conninfo, char **errmsg); <para> Reset the communication channel to the server, in a nonblocking manner. - <synopsis> - int PQresetStart(PGconn *conn); - </synopsis> - <synopsis> - PostgresPollingStatusType PQresetPoll(PGconn *conn); - </synopsis> +<synopsis> +int PQresetStart(PGconn *conn); + +PostgresPollingStatusType PQresetPoll(PGconn *conn); +</synopsis> </para> <para> @@ -1106,9 +1101,9 @@ PQconninfoOption *PQconninfoParse(const char *conninfo, char **errmsg); <listitem> <para> Returns the database name of the connection. - <synopsis> - char *PQdb(const PGconn *conn); - </synopsis> +<synopsis> +char *PQdb(const PGconn *conn); +</synopsis> </para> </listitem> </varlistentry> @@ -1124,9 +1119,9 @@ PQconninfoOption *PQconninfoParse(const char *conninfo, char **errmsg); <listitem> <para> Returns the user name of the connection. - <synopsis> - char *PQuser(const PGconn *conn); - </synopsis> +<synopsis> +char *PQuser(const PGconn *conn); +</synopsis> </para> </listitem> </varlistentry> @@ -1142,9 +1137,9 @@ PQconninfoOption *PQconninfoParse(const char *conninfo, char **errmsg); <listitem> <para> Returns the password of the connection. - <synopsis> - char *PQpass(const PGconn *conn); - </synopsis> +<synopsis> +char *PQpass(const PGconn *conn); +</synopsis> </para> </listitem> </varlistentry> @@ -1160,9 +1155,9 @@ PQconninfoOption *PQconninfoParse(const char *conninfo, char **errmsg); <listitem> <para> Returns the server host name of the connection. - <synopsis> - char *PQhost(const PGconn *conn); - </synopsis> +<synopsis> +char *PQhost(const PGconn *conn); +</synopsis> </para> </listitem> </varlistentry> @@ -1179,9 +1174,9 @@ PQconninfoOption *PQconninfoParse(const char *conninfo, char **errmsg); <para> Returns the port of the connection. - <synopsis> - char *PQport(const PGconn *conn); - </synopsis> +<synopsis> +char *PQport(const PGconn *conn); +</synopsis> </para> </listitem> </varlistentry> @@ -1201,9 +1196,9 @@ PQconninfoOption *PQconninfoParse(const char *conninfo, char **errmsg); to the <acronym>TTY</acronym> setting, but the function remains for backwards compatibility.) - <synopsis> - char *PQtty(const PGconn *conn); - </synopsis> +<synopsis> +char *PQtty(const PGconn *conn); +</synopsis> </para> </listitem> </varlistentry> @@ -1219,9 +1214,9 @@ PQconninfoOption *PQconninfoParse(const char *conninfo, char **errmsg); <listitem> <para> Returns the command-line options passed in the connection request. - <synopsis> - char *PQoptions(const PGconn *conn); - </synopsis> +<synopsis> +char *PQoptions(const PGconn *conn); +</synopsis> </para> </listitem> </varlistentry> @@ -1244,9 +1239,9 @@ PQconninfoOption *PQconninfoParse(const char *conninfo, char **errmsg); <listitem> <para> Returns the status of the connection. - <synopsis> - ConnStatusType PQstatus(const PGconn *conn); - </synopsis> +<synopsis> +ConnStatusType PQstatus(const PGconn *conn); +</synopsis> </para> <para> @@ -1284,9 +1279,9 @@ PQconninfoOption *PQconninfoParse(const char *conninfo, char **errmsg); <para> Returns the current in-transaction status of the server. - <synopsis> - PGTransactionStatusType PQtransactionStatus(const PGconn *conn); - </synopsis> +<synopsis> +PGTransactionStatusType PQtransactionStatus(const PGconn *conn); +</synopsis> The status can be <literal>PQTRANS_IDLE</literal> (currently idle), <literal>PQTRANS_ACTIVE</literal> (a command is in progress), @@ -1320,9 +1315,9 @@ PQconninfoOption *PQconninfoParse(const char *conninfo, char **errmsg); <para> Looks up a current parameter setting of the server. - <synopsis> - const char *PQparameterStatus(const PGconn *conn, const char *paramName); - </synopsis> +<synopsis> +const char *PQparameterStatus(const PGconn *conn, const char *paramName); +</synopsis> Certain parameter values are reported by the server automatically at connection startup or whenever their values change. @@ -1398,9 +1393,9 @@ PQconninfoOption *PQconninfoParse(const char *conninfo, char **errmsg); <listitem> <para> Interrogates the frontend/backend protocol being used. - <synopsis> - int PQprotocolVersion(const PGconn *conn); - </synopsis> +<synopsis> +int PQprotocolVersion(const PGconn *conn); +</synopsis> Applications might wish to use this to determine whether certain features are supported. Currently, the possible values are 2 (2.0 protocol), 3 (3.0 protocol), or zero (connection bad). This will @@ -1425,9 +1420,9 @@ PQconninfoOption *PQconninfoParse(const char *conninfo, char **errmsg); <listitem> <para> Returns an integer representing the backend version. - <synopsis> - int PQserverVersion(const PGconn *conn); - </synopsis> +<synopsis> +int PQserverVersion(const PGconn *conn); +</synopsis> Applications might use this to determine the version of the database server they are connected to. The number is formed by converting the major, minor, and revision numbers into two-decimal-digit @@ -1452,9 +1447,9 @@ PQconninfoOption *PQconninfoParse(const char *conninfo, char **errmsg); <indexterm><primary>error message</></> Returns the error message most recently generated by an operation on the connection. - <synopsis> - char *PQerrorMessage(const PGconn *conn); - </synopsis> +<synopsis> +char *PQerrorMessage(const PGconn *conn); +</synopsis> </para> @@ -1483,9 +1478,9 @@ PQconninfoOption *PQconninfoParse(const char *conninfo, char **errmsg); currently open. (This will not change during normal operation, but could change during connection setup or reset.) - <synopsis> - int PQsocket(const PGconn *conn); - </synopsis> +<synopsis> +int PQsocket(const PGconn *conn); +</synopsis> </para> </listitem> @@ -1500,9 +1495,9 @@ PQconninfoOption *PQconninfoParse(const char *conninfo, char **errmsg); server process</><tertiary>in libpq</></> of the backend server process handling this connection. - <synopsis> - int PQbackendPID(const PGconn *conn); - </synopsis> +<synopsis> +int PQbackendPID(const PGconn *conn); +</synopsis> </para> <para> @@ -1524,9 +1519,9 @@ PQconninfoOption *PQconninfoParse(const char *conninfo, char **errmsg); required a password, but none was available. Returns false (0) if not. - <synopsis> - int PQconnectionNeedsPassword(const PGconn *conn); - </synopsis> +<synopsis> +int PQconnectionNeedsPassword(const PGconn *conn); +</synopsis> </para> <para> @@ -1543,9 +1538,9 @@ PQconninfoOption *PQconninfoParse(const char *conninfo, char **errmsg); Returns true (1) if the connection authentication method used a password. Returns false (0) if not. - <synopsis> - int PQconnectionUsedPassword(const PGconn *conn); - </synopsis> +<synopsis> +int PQconnectionUsedPassword(const PGconn *conn); +</synopsis> </para> <para> @@ -1563,9 +1558,9 @@ PQconninfoOption *PQconninfoParse(const char *conninfo, char **errmsg); Returns the SSL structure used in the connection, or null if SSL is not in use. - <synopsis> - SSL *PQgetssl(const PGconn *conn); - </synopsis> +<synopsis> +SSL *PQgetssl(const PGconn *conn); +</synopsis> </para> <para> @@ -1614,9 +1609,9 @@ PQconninfoOption *PQconninfoParse(const char *conninfo, char **errmsg); <para> Submits a command to the server and waits for the result. - <synopsis> - PGresult *PQexec(PGconn *conn, const char *command); - </synopsis> +<synopsis> +PGresult *PQexec(PGconn *conn, const char *command); +</synopsis> </para> <para> @@ -2058,9 +2053,9 @@ PGresult *PQdescribePortal(PGconn *conn, const char *portalName); <listitem> <para> Returns the result status of the command. - <synopsis> - ExecStatusType PQresultStatus(const PGresult *res); - </synopsis> +<synopsis> +ExecStatusType PQresultStatus(const PGresult *res); +</synopsis> </para> <para> @@ -2176,9 +2171,9 @@ PGresult *PQdescribePortal(PGconn *conn, const char *portalName); <function>PQresultStatus</> into a string constant describing the status code. The caller should not free the result. - <synopsis> - char *PQresStatus(ExecStatusType status); - </synopsis> +<synopsis> +char *PQresStatus(ExecStatusType status); +</synopsis> </para> </listitem> </varlistentry> @@ -2195,9 +2190,9 @@ PGresult *PQdescribePortal(PGconn *conn, const char *portalName); <para> Returns the error message associated with the command, or an empty string if there was no error. - <synopsis> - char *PQresultErrorMessage(const PGresult *res); - </synopsis> +<synopsis> +char *PQresultErrorMessage(const PGresult *res); +</synopsis> If there was an error, the returned string will include a trailing newline. The caller should not free the result directly. It will be freed when the associated <structname>PGresult</> handle is @@ -2226,9 +2221,9 @@ PGresult *PQdescribePortal(PGconn *conn, const char *portalName); <listitem> <para> Returns an individual field of an error report. - <synopsis> - char *PQresultErrorField(const PGresult *res, int fieldcode); - </synopsis> +<synopsis> +char *PQresultErrorField(const PGresult *res, int fieldcode); +</synopsis> <parameter>fieldcode</> is an error field identifier; see the symbols listed below. <symbol>NULL</symbol> is returned if the <structname>PGresult</structname> is not an error or warning result, @@ -2417,9 +2412,9 @@ PGresult *PQdescribePortal(PGconn *conn, const char *portalName); freed via <function>PQclear</function> when it is no longer needed. - <synopsis> - void PQclear(PGresult *res); - </synopsis> +<synopsis> +void PQclear(PGresult *res); +</synopsis> </para> <para> @@ -2464,9 +2459,9 @@ PGresult *PQdescribePortal(PGconn *conn, const char *portalName); it returns an integer result, large result sets might overflow the return value on 32-bit operating systems. - <synopsis> - int PQntuples(const PGresult *res); - </synopsis> +<synopsis> +int PQntuples(const PGresult *res); +</synopsis> </para> </listitem> @@ -2485,9 +2480,9 @@ PGresult *PQdescribePortal(PGconn *conn, const char *portalName); Returns the number of columns (fields) in each row of the query result. - <synopsis> - int PQnfields(const PGresult *res); - </synopsis> +<synopsis> +int PQnfields(const PGresult *res); +</synopsis> </para> </listitem> </varlistentry> @@ -2507,10 +2502,10 @@ PGresult *PQdescribePortal(PGconn *conn, const char *portalName); directly. It will be freed when the associated <structname>PGresult</> handle is passed to <function>PQclear</function>. - <synopsis> - char *PQfname(const PGresult *res, - int column_number); - </synopsis> +<synopsis> +char *PQfname(const PGresult *res, + int column_number); +</synopsis> </para> <para> @@ -2530,10 +2525,10 @@ PGresult *PQdescribePortal(PGconn *conn, const char *portalName); <listitem> <para> Returns the column number associated with the given column name. - <synopsis> - int PQfnumber(const PGresult *res, - const char *column_name); - </synopsis> +<synopsis> +int PQfnumber(const PGresult *res, + const char *column_name); +</synopsis> </para> <para> @@ -2572,10 +2567,10 @@ PQfnumber(res, "\"BAR\"") <lineannotation>1</lineannotation> <para> Returns the OID of the table from which the given column was fetched. Column numbers start at 0. - <synopsis> - Oid PQftable(const PGresult *res, - int column_number); - </synopsis> +<synopsis> +Oid PQftable(const PGresult *res, + int column_number); +</synopsis> </para> <para> @@ -2608,10 +2603,10 @@ PQfnumber(res, "\"BAR\"") <lineannotation>1</lineannotation> Returns the column number (within its table) of the column making up the specified query result column. Query-result column numbers start at 0, but table columns have nonzero numbers. - <synopsis> - int PQftablecol(const PGresult *res, - int column_number); - </synopsis> +<synopsis> +int PQftablecol(const PGresult *res, + int column_number); +</synopsis> </para> <para> @@ -2634,10 +2629,10 @@ PQfnumber(res, "\"BAR\"") <lineannotation>1</lineannotation> <para> Returns the format code indicating the format of the given column. Column numbers start at 0. - <synopsis> - int PQfformat(const PGresult *res, - int column_number); - </synopsis> +<synopsis> +int PQfformat(const PGresult *res, + int column_number); +</synopsis> </para> <para> @@ -2661,10 +2656,10 @@ PQfnumber(res, "\"BAR\"") <lineannotation>1</lineannotation> Returns the data type associated with the given column number. The integer returned is the internal OID number of the type. Column numbers start at 0. - <synopsis> - Oid PQftype(const PGresult *res, - int column_number); - </synopsis> +<synopsis> +Oid PQftype(const PGresult *res, + int column_number); +</synopsis> </para> <para> @@ -2689,10 +2684,10 @@ PQfnumber(res, "\"BAR\"") <lineannotation>1</lineannotation> <para> Returns the type modifier of the column associated with the given column number. Column numbers start at 0. - <synopsis> - int PQfmod(const PGresult *res, - int column_number); - </synopsis> +<synopsis> +int PQfmod(const PGresult *res, + int column_number); +</synopsis> </para> <para> @@ -2717,10 +2712,10 @@ PQfnumber(res, "\"BAR\"") <lineannotation>1</lineannotation> <para> Returns the size in bytes of the column associated with the given column number. Column numbers start at 0. - <synopsis> - int PQfsize(const PGresult *res, - int column_number); - </synopsis> +<synopsis> +int PQfsize(const PGresult *res, + int column_number); +</synopsis> </para> <para> @@ -2745,9 +2740,9 @@ PQfnumber(res, "\"BAR\"") <lineannotation>1</lineannotation> <para> Returns 1 if the <structname>PGresult</> contains binary data and 0 if it contains text data. - <synopsis> - int PQbinaryTuples(const PGresult *res); - </synopsis> +<synopsis> +int PQbinaryTuples(const PGresult *res); +</synopsis> </para> <para> @@ -2776,11 +2771,11 @@ PQfnumber(res, "\"BAR\"") <lineannotation>1</lineannotation> at 0. The caller should not free the result directly. It will be freed when the associated <structname>PGresult</> handle is passed to <function>PQclear</function>. - <synopsis> - char *PQgetvalue(const PGresult *res, - int row_number, - int column_number); - </synopsis> +<synopsis> +char *PQgetvalue(const PGresult *res, + int row_number, + int column_number); +</synopsis> </para> <para> @@ -2827,11 +2822,11 @@ PQfnumber(res, "\"BAR\"") <lineannotation>1</lineannotation> <para> Tests a field for a null value. Row and column numbers start at 0. - <synopsis> - int PQgetisnull(const PGresult *res, - int row_number, - int column_number); - </synopsis> +<synopsis> +int PQgetisnull(const PGresult *res, + int row_number, + int column_number); +</synopsis> </para> <para> @@ -2854,11 +2849,11 @@ PQfnumber(res, "\"BAR\"") <lineannotation>1</lineannotation> <para> Returns the actual length of a field value in bytes. Row and column numbers start at 0. - <synopsis> - int PQgetlength(const PGresult *res, - int row_number, - int column_number); - </synopsis> +<synopsis> +int PQgetlength(const PGresult *res, + int row_number, + int column_number); +</synopsis> </para> <para> @@ -2884,9 +2879,9 @@ PQfnumber(res, "\"BAR\"") <lineannotation>1</lineannotation> <listitem> <para> Returns the number of parameters of a prepared statement. - <synopsis> - int PQnparams(const PGresult *res); - </synopsis> +<synopsis> +int PQnparams(const PGresult *res); +</synopsis> </para> <para> @@ -2909,9 +2904,9 @@ PQfnumber(res, "\"BAR\"") <lineannotation>1</lineannotation> <para> Returns the data type of the indicated statement parameter. Parameter numbers start at 0. - <synopsis> - Oid PQparamtype(const PGresult *res, int param_number); - </synopsis> +<synopsis> +Oid PQparamtype(const PGresult *res, int param_number); +</synopsis> </para> <para> @@ -2934,23 +2929,24 @@ PQfnumber(res, "\"BAR\"") <lineannotation>1</lineannotation> <para> Prints out all the rows and, optionally, the column names to the specified output stream. - <synopsis> +<synopsis> void PQprint(FILE *fout, /* output stream */ const PGresult *res, const PQprintOpt *po); -typedef struct { - pqbool header; /* print output field headings and row count */ - pqbool align; /* fill align the fields */ - pqbool standard; /* old brain dead format */ - pqbool html3; /* output HTML tables */ - pqbool expanded; /* expand tables */ - pqbool pager; /* use pager for output if needed */ - char *fieldSep; /* field separator */ - char *tableOpt; /* attributes for HTML table element */ - char *caption; /* HTML table caption */ - char **fieldName; /* null-terminated array of replacement field names */ +typedef struct +{ + pqbool header; /* print output field headings and row count */ + pqbool align; /* fill align the fields */ + pqbool standard; /* old brain dead format */ + pqbool html3; /* output HTML tables */ + pqbool expanded; /* expand tables */ + pqbool pager; /* use pager for output if needed */ + char *fieldSep; /* field separator */ + char *tableOpt; /* attributes for HTML table element */ + char *caption; /* HTML table caption */ + char **fieldName; /* null-terminated array of replacement field names */ } PQprintOpt; - </synopsis> +</synopsis> </para> <para> @@ -2984,9 +2980,9 @@ typedef struct { <para> Returns the command status tag from the SQL command that generated the <structname>PGresult</structname>. - <synopsis> - char *PQcmdStatus(PGresult *res); - </synopsis> +<synopsis> +char *PQcmdStatus(PGresult *res); +</synopsis> </para> <para> @@ -3010,9 +3006,9 @@ typedef struct { <listitem> <para> Returns the number of rows affected by the SQL command. - <synopsis> - char *PQcmdTuples(PGresult *res); - </synopsis> +<synopsis> +char *PQcmdTuples(PGresult *res); +</synopsis> </para> <para> @@ -3051,9 +3047,9 @@ typedef struct { returns <literal>InvalidOid</literal>. This function will also return <literal>InvalidOid</literal> if the table affected by the <command>INSERT</> statement does not contain OIDs. - <synopsis> - Oid PQoidValue(const PGresult *res); - </synopsis> +<synopsis> +Oid PQoidValue(const PGresult *res); +</synopsis> </para> </listitem> </varlistentry> @@ -3076,9 +3072,9 @@ typedef struct { the <command>INSERT</command> did not insert exactly one row, or if the target table does not have OIDs.) If the command was not an <command>INSERT</command>, returns an empty string. - <synopsis> - char *PQoidStatus(const PGresult *res); - </synopsis> +<synopsis> +char *PQoidStatus(const PGresult *res); +</synopsis> </para> <para> @@ -3110,9 +3106,9 @@ typedef struct { <listitem> <para> - <synopsis> - size_t PQescapeLiteral(PGconn *conn, char *str, size_t len) - </synopsis> +<synopsis> +size_t PQescapeLiteral(PGconn *conn, char *str, size_t len); +</synopsis> </para> <para> @@ -3174,9 +3170,9 @@ typedef struct { <listitem> <para> - <synopsis> - size_t PQescapeIdentifier(PGconn *conn, char *str, size_t len) - </synopsis> +<synopsis> +size_t PQescapeIdentifier(PGconn *conn, char *str, size_t len); +</synopsis> </para> <para> @@ -3229,11 +3225,11 @@ typedef struct { <listitem> <para> - <synopsis> - size_t PQescapeStringConn (PGconn *conn, - char *to, const char *from, size_t length, - int *error); - </synopsis> +<synopsis> +size_t PQescapeStringConn(PGconn *conn, + char *to, const char *from, size_t length, + int *error); +</synopsis> </para> <para> @@ -3284,9 +3280,9 @@ typedef struct { <listitem> <para> - <synopsis> - size_t PQescapeString (char *to, const char *from, size_t length); - </synopsis> +<synopsis> +size_t PQescapeString (char *to, const char *from, size_t length); +</synopsis> </para> <para> @@ -3323,12 +3319,12 @@ typedef struct { Escapes binary data for use within an SQL command with the type <type>bytea</type>. As with <function>PQescapeStringConn</function>, this is only used when inserting data directly into an SQL command string. - <synopsis> - unsigned char *PQescapeByteaConn(PGconn *conn, - const unsigned char *from, - size_t from_length, - size_t *to_length); - </synopsis> +<synopsis> +unsigned char *PQescapeByteaConn(PGconn *conn, + const unsigned char *from, + size_t from_length, + size_t *to_length); +</synopsis> </para> <para> @@ -3388,11 +3384,11 @@ typedef struct { <para> <function>PQescapeBytea</> is an older, deprecated version of <function>PQescapeByteaConn</>. - <synopsis> - unsigned char *PQescapeBytea(const unsigned char *from, - size_t from_length, - size_t *to_length); - </synopsis> +<synopsis> +unsigned char *PQescapeBytea(const unsigned char *from, + size_t from_length, + size_t *to_length); +</synopsis> </para> <para> @@ -3431,9 +3427,9 @@ typedef struct { is needed when retrieving <type>bytea</type> data in text format, but not when retrieving it in binary format. - <synopsis> - unsigned char *PQunescapeBytea(const unsigned char *from, size_t *to_length); - </synopsis> +<synopsis> +unsigned char *PQunescapeBytea(const unsigned char *from, size_t *to_length); +</synopsis> </para> <para> @@ -3539,9 +3535,9 @@ typedef struct { 1 is returned if the command was successfully dispatched and 0 if not (in which case, use <function>PQerrorMessage</> to get more information about the failure). - <synopsis> - int PQsendQuery(PGconn *conn, const char *command); - </synopsis> +<synopsis> +int PQsendQuery(PGconn *conn, const char *command); +</synopsis> After successfully calling <function>PQsendQuery</function>, call <function>PQgetResult</function> one or more times to obtain the @@ -3564,16 +3560,16 @@ typedef struct { <para> Submits a command and separate parameters to the server without waiting for the result(s). - <synopsis> - int PQsendQueryParams(PGconn *conn, - const char *command, - int nParams, - const Oid *paramTypes, - const char * const *paramValues, - const int *paramLengths, - const int *paramFormats, - int resultFormat); - </synopsis> +<synopsis> +int PQsendQueryParams(PGconn *conn, + const char *command, + int nParams, + const Oid *paramTypes, + const char * const *paramValues, + const int *paramLengths, + const int *paramFormats, + int resultFormat); +</synopsis> This is equivalent to <function>PQsendQuery</function> except that query parameters can be specified separately from the query string. @@ -3597,13 +3593,13 @@ typedef struct { <para> Sends a request to create a prepared statement with the given parameters, without waiting for completion. - <synopsis> - int PQsendPrepare(PGconn *conn, - const char *stmtName, - const char *query, - int nParams, - const Oid *paramTypes); - </synopsis> +<synopsis> +int PQsendPrepare(PGconn *conn, + const char *stmtName, + const char *query, + int nParams, + const Oid *paramTypes); +</synopsis> This is an asynchronous version of <function>PQprepare</>: it returns 1 if it was able to dispatch the request, and 0 if not. @@ -3629,15 +3625,15 @@ typedef struct { <para> Sends a request to execute a prepared statement with given parameters, without waiting for the result(s). - <synopsis> - int PQsendQueryPrepared(PGconn *conn, - const char *stmtName, - int nParams, - const char * const *paramValues, - const int *paramLengths, - const int *paramFormats, - int resultFormat); - </synopsis> +<synopsis> +int PQsendQueryPrepared(PGconn *conn, + const char *stmtName, + int nParams, + const char * const *paramValues, + const int *paramLengths, + const int *paramFormats, + int resultFormat); +</synopsis> This is similar to <function>PQsendQueryParams</function>, but the command to be executed is specified by naming a @@ -3662,9 +3658,9 @@ typedef struct { <para> Submits a request to obtain information about the specified prepared statement, without waiting for completion. - <synopsis> - int PQsendDescribePrepared(PGconn *conn, const char *stmtName); - </synopsis> +<synopsis> +int PQsendDescribePrepared(PGconn *conn, const char *stmtName); +</synopsis> This is an asynchronous version of <function>PQdescribePrepared</>: it returns 1 if it was able to dispatch the request, and 0 if not. @@ -3689,9 +3685,9 @@ typedef struct { <para> Submits a request to obtain information about the specified portal, without waiting for completion. - <synopsis> - int PQsendDescribePortal(PGconn *conn, const char *portalName); - </synopsis> +<synopsis> +int PQsendDescribePortal(PGconn *conn, const char *portalName); +</synopsis> This is an asynchronous version of <function>PQdescribePortal</>: it returns 1 if it was able to dispatch the request, and 0 if not. @@ -3721,9 +3717,9 @@ typedef struct { <function>PQsendQueryPrepared</function> call, and returns it. A null pointer is returned when the command is complete and there will be no more results. - <synopsis> - PGresult *PQgetResult(PGconn *conn); - </synopsis> +<synopsis> +PGresult *PQgetResult(PGconn *conn); +</synopsis> </para> <para> @@ -3770,9 +3766,9 @@ typedef struct { <listitem> <para> If input is available from the server, consume it. - <synopsis> - int PQconsumeInput(PGconn *conn); - </synopsis> +<synopsis> +int PQconsumeInput(PGconn *conn); +</synopsis> </para> <para> @@ -3813,9 +3809,9 @@ typedef struct { <function>PQgetResult</function> would block waiting for input. A 0 return indicates that <function>PQgetResult</function> can be called with assurance of not blocking. - <synopsis> - int PQisBusy(PGconn *conn); - </synopsis> +<synopsis> +int PQisBusy(PGconn *conn); +</synopsis> </para> <para> @@ -3879,9 +3875,9 @@ typedef struct { <listitem> <para> Sets the nonblocking status of the connection. - <synopsis> - int PQsetnonblocking(PGconn *conn, int arg); - </synopsis> +<synopsis> +int PQsetnonblocking(PGconn *conn, int arg); +</synopsis> </para> <para> @@ -3916,9 +3912,9 @@ typedef struct { <listitem> <para> Returns the blocking status of the database connection. - <synopsis> - int PQisnonblocking(const PGconn *conn); - </synopsis> +<synopsis> +int PQisnonblocking(const PGconn *conn); +</synopsis> </para> <para> @@ -3943,9 +3939,9 @@ typedef struct { for some reason, or 1 if it was unable to send all the data in the send queue yet (this case can only occur if the connection is nonblocking). - <synopsis> - int PQflush(PGconn *conn); - </synopsis> +<synopsis> +int PQflush(PGconn *conn); +</synopsis> </para> </listitem> </varlistentry> @@ -3988,9 +3984,9 @@ typedef struct { <para> Creates a data structure containing the information needed to cancel a command issued through a particular database connection. - <synopsis> - PGcancel *PQgetCancel(PGconn *conn); - </synopsis> +<synopsis> +PGcancel *PQgetCancel(PGconn *conn); +</synopsis> </para> <para> @@ -4017,9 +4013,9 @@ typedef struct { <listitem> <para> Frees a data structure created by <function>PQgetCancel</function>. - <synopsis> - void PQfreeCancel(PGcancel *cancel); - </synopsis> +<synopsis> +void PQfreeCancel(PGcancel *cancel); +</synopsis> </para> <para> @@ -4040,9 +4036,9 @@ typedef struct { <listitem> <para> Requests that the server abandon processing of the current command. - <synopsis> - int PQcancel(PGcancel *cancel, char *errbuf, int errbufsize); - </synopsis> +<synopsis> +int PQcancel(PGcancel *cancel, char *errbuf, int errbufsize); +</synopsis> </para> <para> @@ -4087,9 +4083,9 @@ typedef struct { <para> Requests that the server abandon processing of the current command. - <synopsis> - int PQrequestCancel(PGconn *conn); - </synopsis> +<synopsis> +int PQrequestCancel(PGconn *conn); +</synopsis> </para> <para> @@ -4135,24 +4131,26 @@ typedef struct { <para> The function <function>PQfn</function><indexterm><primary>PQfn</></> requests execution of a server function via the fast-path interface: - <synopsis> - PGresult *PQfn(PGconn *conn, - int fnid, - int *result_buf, - int *result_len, - int result_is_int, - const PQArgBlock *args, - int nargs); - - typedef struct { - int len; - int isint; - union { - int *ptr; - int integer; - } u; - } PQArgBlock; - </synopsis> +<synopsis> +PGresult *PQfn(PGconn *conn, + int fnid, + int *result_buf, + int *result_len, + int result_is_int, + const PQArgBlock *args, + int nargs); + +typedef struct +{ + int len; + int isint; + union + { + int *ptr; + int integer; + } u; +} PQArgBlock; +</synopsis> </para> <para> @@ -4230,15 +4228,16 @@ typedef struct { notification is returned from <function>PQnotifies</>, it is considered handled and will be removed from the list of notifications. - <synopsis> - PGnotify *PQnotifies(PGconn *conn); +<synopsis> +PGnotify *PQnotifies(PGconn *conn); - typedef struct pgNotify { - char *relname; /* notification channel name */ - int be_pid; /* process ID of notifying server process */ - char *extra; /* notification payload string */ - } PGnotify; - </synopsis> +typedef struct pgNotify +{ + char *relname; /* notification channel name */ + int be_pid; /* process ID of notifying server process */ + char *extra; /* notification payload string */ +} PGnotify; +</synopsis> After processing a <structname>PGnotify</structname> object returned by <function>PQnotifies</function>, be sure to free it with @@ -4431,11 +4430,11 @@ typedef struct { <listitem> <para> Sends data to the server during <literal>COPY_IN</> state. - <synopsis> - int PQputCopyData(PGconn *conn, - const char *buffer, - int nbytes); - </synopsis> +<synopsis> +int PQputCopyData(PGconn *conn, + const char *buffer, + int nbytes); +</synopsis> </para> <para> @@ -4470,10 +4469,10 @@ typedef struct { <listitem> <para> Sends end-of-data indication to the server during <literal>COPY_IN</> state. - <synopsis> - int PQputCopyEnd(PGconn *conn, - const char *errormsg); - </synopsis> +<synopsis> +int PQputCopyEnd(PGconn *conn, + const char *errormsg); +</synopsis> </para> <para> @@ -4531,11 +4530,11 @@ typedef struct { <listitem> <para> Receives data from the server during <literal>COPY_OUT</> state. - <synopsis> - int PQgetCopyData(PGconn *conn, - char **buffer, - int async); - </synopsis> +<synopsis> +int PQgetCopyData(PGconn *conn, + char **buffer, + int async); +</synopsis> </para> <para> @@ -4609,11 +4608,11 @@ typedef struct { <para> Reads a newline-terminated line of characters (transmitted by the server) into a buffer string of size <parameter>length</>. - <synopsis> - int PQgetline(PGconn *conn, - char *buffer, - int length); - </synopsis> +<synopsis> +int PQgetline(PGconn *conn, + char *buffer, + int length); +</synopsis> </para> <para> @@ -4648,11 +4647,11 @@ typedef struct { <para> Reads a row of <command>COPY</command> data (transmitted by the server) into a buffer without blocking. - <synopsis> - int PQgetlineAsync(PGconn *conn, - char *buffer, - int bufsize); - </synopsis> +<synopsis> +int PQgetlineAsync(PGconn *conn, + char *buffer, + int bufsize); +</synopsis> </para> <para> @@ -4707,10 +4706,10 @@ typedef struct { <para> Sends a null-terminated string to the server. Returns 0 if OK and <symbol>EOF</symbol> if unable to send the string. - <synopsis> - int PQputline(PGconn *conn, - const char *string); - </synopsis> +<synopsis> +int PQputline(PGconn *conn, + const char *string); +</synopsis> </para> <para> @@ -4748,11 +4747,11 @@ typedef struct { <para> Sends a non-null-terminated string to the server. Returns 0 if OK and <symbol>EOF</symbol> if unable to send the string. - <synopsis> - int PQputnbytes(PGconn *conn, - const char *buffer, - int nbytes); - </synopsis> +<synopsis> +int PQputnbytes(PGconn *conn, + const char *buffer, + int nbytes); +</synopsis> </para> <para> @@ -4774,9 +4773,9 @@ typedef struct { <listitem> <para> Synchronizes with the server. - <synopsis> - int PQendcopy(PGconn *conn); - </synopsis> +<synopsis> +int PQendcopy(PGconn *conn); +</synopsis> This function waits until the server has finished the copying. It should either be issued when the last string has been sent to the server using <function>PQputline</function> or when the @@ -4839,9 +4838,9 @@ typedef struct { <listitem> <para> Returns the client encoding. - <synopsis> - int PQclientEncoding(const PGconn *<replaceable>conn</replaceable>); - </synopsis> +<synopsis> +int PQclientEncoding(const PGconn *<replaceable>conn</replaceable>); +</synopsis> Note that it returns the encoding ID, not a symbolic string such as <literal>EUC_JP</literal>. To convert an encoding ID to an encoding name, you @@ -4865,9 +4864,9 @@ char *pg_encoding_to_char(int <replaceable>encoding_id</replaceable>); <listitem> <para> Sets the client encoding. - <synopsis> - int PQsetClientEncoding(PGconn *<replaceable>conn</replaceable>, const char *<replaceable>encoding</replaceable>); - </synopsis> +<synopsis> +int PQsetClientEncoding(PGconn *<replaceable>conn</replaceable>, const char *<replaceable>encoding</replaceable>); +</synopsis> <replaceable>conn</replaceable> is a connection to the server, and <replaceable>encoding</replaceable> is the encoding you want to @@ -4890,15 +4889,16 @@ char *pg_encoding_to_char(int <replaceable>encoding_id</replaceable>); <para> Determines the verbosity of messages returned by <function>PQerrorMessage</> and <function>PQresultErrorMessage</>. - <synopsis> - typedef enum { - PQERRORS_TERSE, - PQERRORS_DEFAULT, - PQERRORS_VERBOSE - } PGVerbosity; +<synopsis> +typedef enum +{ + PQERRORS_TERSE, + PQERRORS_DEFAULT, + PQERRORS_VERBOSE +} PGVerbosity; - PGVerbosity PQsetErrorVerbosity(PGconn *conn, PGVerbosity verbosity); - </synopsis> +PGVerbosity PQsetErrorVerbosity(PGconn *conn, PGVerbosity verbosity); +</synopsis> <function>PQsetErrorVerbosity</> sets the verbosity mode, returning the connection's previous setting. In <firstterm>TERSE</> mode, @@ -4924,9 +4924,9 @@ char *pg_encoding_to_char(int <replaceable>encoding_id</replaceable>); <listitem> <para> Enables tracing of the client/server communication to a debugging file stream. - <synopsis> - void PQtrace(PGconn *conn, FILE *stream); - </synopsis> +<synopsis> +void PQtrace(PGconn *conn, FILE *stream); +</synopsis> </para> <note> @@ -4954,9 +4954,9 @@ char *pg_encoding_to_char(int <replaceable>encoding_id</replaceable>); <listitem> <para> Disables tracing started by <function>PQtrace</function>. - <synopsis> - void PQuntrace(PGconn *conn); - </synopsis> +<synopsis> +void PQuntrace(PGconn *conn); +</synopsis> </para> </listitem> </varlistentry> @@ -4983,9 +4983,9 @@ char *pg_encoding_to_char(int <replaceable>encoding_id</replaceable>); <listitem> <para> Frees memory allocated by <application>libpq</>. - <synopsis> - void PQfreemem(void *ptr); - </synopsis> +<synopsis> +void PQfreemem(void *ptr); +</synopsis> </para> <para> @@ -5017,9 +5017,9 @@ char *pg_encoding_to_char(int <replaceable>encoding_id</replaceable>); <para> Frees the data structures allocated by <function>PQconndefaults</> or <function>PQconninfoParse</>. - <synopsis> - void PQconninfoFree(PQconninfoOption *connOptions); - </synopsis> +<synopsis> +void PQconninfoFree(PQconninfoOption *connOptions); +</synopsis> </para> <para> @@ -5040,9 +5040,9 @@ char *pg_encoding_to_char(int <replaceable>encoding_id</replaceable>); <listitem> <para> Prepares the encrypted form of a <productname>PostgreSQL</> password. - <synopsis> - char * PQencryptPassword(const char *passwd, const char *user); - </synopsis> +<synopsis> +char * PQencryptPassword(const char *passwd, const char *user); +</synopsis> This function is intended to be used by client applications that wish to send commands like <literal>ALTER USER joe PASSWORD 'pwd'</>. It is good practice not to send the original cleartext @@ -5070,9 +5070,9 @@ char *pg_encoding_to_char(int <replaceable>encoding_id</replaceable>); <listitem> <para> Constructs an empty <structname>PGresult</structname> object with the given status. - <synopsis> - PGresult *PQmakeEmptyPGresult(PGconn *conn, ExecStatusType status); - </synopsis> +<synopsis> +PGresult *PQmakeEmptyPGresult(PGconn *conn, ExecStatusType status); +</synopsis> </para> <para> @@ -5110,9 +5110,9 @@ char *pg_encoding_to_char(int <replaceable>encoding_id</replaceable>); <structname>PGresult</structname> object. Returns non-zero for success, zero if any event procedure fails. - <synopsis> - int PQfireResultCreateEvents(PGconn *conn, PGresult *res); - </synopsis> +<synopsis> +int PQfireResultCreateEvents(PGconn *conn, PGresult *res); +</synopsis> </para> <para> @@ -5151,9 +5151,9 @@ char *pg_encoding_to_char(int <replaceable>encoding_id</replaceable>); <function>PQclear</function> must be called when the copy is no longer needed. If the function fails, NULL is returned. - <synopsis> - PGresult *PQcopyResult(const PGresult *src, int flags); - </synopsis> +<synopsis> +PGresult *PQcopyResult(const PGresult *src, int flags); +</synopsis> </para> <para> @@ -5186,9 +5186,9 @@ char *pg_encoding_to_char(int <replaceable>encoding_id</replaceable>); <listitem> <para> Sets the attributes of a <structname>PGresult</structname> object. - <synopsis> - int PQsetResultAttrs(PGresult *res, int numAttributes, PGresAttDesc *attDescs); - </synopsis> +<synopsis> +int PQsetResultAttrs(PGresult *res, int numAttributes, PGresAttDesc *attDescs); +</synopsis> </para> <para> @@ -5214,9 +5214,9 @@ char *pg_encoding_to_char(int <replaceable>encoding_id</replaceable>); <listitem> <para> Sets a tuple field value of a <structname>PGresult</structname> object. - <synopsis> - int PQsetvalue(PGresult *res, int tup_num, int field_num, char *value, int len); - </synopsis> +<synopsis> +int PQsetvalue(PGresult *res, int tup_num, int field_num, char *value, int len); +</synopsis> </para> <para> @@ -5248,9 +5248,9 @@ char *pg_encoding_to_char(int <replaceable>encoding_id</replaceable>); <listitem> <para> Allocate subsidiary storage for a <structname>PGresult</structname> object. - <synopsis> - void *PQresultAlloc(PGresult *res, size_t nBytes); - </synopsis> +<synopsis> +void *PQresultAlloc(PGresult *res, size_t nBytes); +</synopsis> </para> <para> @@ -5304,21 +5304,21 @@ char *pg_encoding_to_char(int <replaceable>encoding_id</replaceable>); processor</></><indexterm><primary>PQsetNoticeProcessor</></> sets or examines the current notice processor. - <synopsis> - typedef void (*PQnoticeReceiver) (void *arg, const PGresult *res); +<synopsis> +typedef void (*PQnoticeReceiver) (void *arg, const PGresult *res); - PQnoticeReceiver - PQsetNoticeReceiver(PGconn *conn, - PQnoticeReceiver proc, - void *arg); +PQnoticeReceiver +PQsetNoticeReceiver(PGconn *conn, + PQnoticeReceiver proc, + void *arg); - typedef void (*PQnoticeProcessor) (void *arg, const char *message); +typedef void (*PQnoticeProcessor) (void *arg, const char *message); - PQnoticeProcessor - PQsetNoticeProcessor(PGconn *conn, - PQnoticeProcessor proc, - void *arg); - </synopsis> +PQnoticeProcessor +PQsetNoticeProcessor(PGconn *conn, + PQnoticeProcessor proc, + void *arg); +</synopsis> Each of these functions returns the previous notice receiver or processor function pointer, and sets the new value. If you supply a @@ -5355,7 +5355,7 @@ char *pg_encoding_to_char(int <replaceable>encoding_id</replaceable>); <para> The default notice processor is simply: - <programlisting> +<programlisting> static void defaultNoticeProcessor(void *arg, const char *message) { @@ -5434,12 +5434,12 @@ defaultNoticeProcessor(void *arg, const char *message) register event will be fired per event handler per connection. If the event procedure fails, the registration is aborted. - <synopsis> +<synopsis> typedef struct { PGconn *conn; } PGEventRegister; - </synopsis> +</synopsis> When a <literal>PGEVT_REGISTER</literal> event is received, the <parameter>evtInfo</parameter> pointer should be cast to a @@ -5467,12 +5467,12 @@ typedef struct <function>PQresetPoll</function> will return <literal>PGRES_POLLING_FAILED</literal>. - <synopsis> +<synopsis> typedef struct { PGconn *conn; } PGEventConnReset; - </synopsis> +</synopsis> When a <literal>PGEVT_CONNRESET</literal> event is received, the <parameter>evtInfo</parameter> pointer should be cast to a @@ -5497,12 +5497,12 @@ typedef struct ability to manage this memory. Failure to clean up will lead to memory leaks. - <synopsis> +<synopsis> typedef struct { PGconn *conn; } PGEventConnDestroy; - </synopsis> +</synopsis> When a <literal>PGEVT_CONNDESTROY</literal> event is received, the <parameter>evtInfo</parameter> pointer should be cast to a @@ -5525,13 +5525,13 @@ typedef struct <function>PQgetResult</function>. This event will only be fired after the result has been created successfully. - <synopsis> +<synopsis> typedef struct { PGconn *conn; PGresult *result; } PGEventResultCreate; - </synopsis> +</synopsis> When a <literal>PGEVT_RESULTCREATE</literal> event is received, the <parameter>evtInfo</parameter> pointer should be cast to a @@ -5559,13 +5559,13 @@ typedef struct or <literal>PGEVT_RESULTCOPY</literal> event for the source result will receive <literal>PGEVT_RESULTCOPY</literal> events. - <synopsis> +<synopsis> typedef struct { const PGresult *src; PGresult *dest; } PGEventResultCopy; - </synopsis> +</synopsis> When a <literal>PGEVT_RESULTCOPY</literal> event is received, the <parameter>evtInfo</parameter> pointer should be cast to a @@ -5593,12 +5593,12 @@ typedef struct ability to manage this memory. Failure to clean up will lead to memory leaks. - <synopsis> +<synopsis> typedef struct { PGresult *result; } PGEventResultDestroy; - </synopsis> +</synopsis> When a <literal>PGEVT_RESULTDESTROY</literal> event is received, the <parameter>evtInfo</parameter> pointer should be cast to a @@ -5632,9 +5632,9 @@ typedef struct event procedure, that is, the user callback function that receives events from libpq. The signature of an event procedure must be - <synopsis> +<synopsis> int eventproc(PGEventId evtId, void *evtInfo, void *passThrough) - </synopsis> +</synopsis> The <parameter>evtId</parameter> parameter indicates which <literal>PGEVT</literal> event occurred. The @@ -5685,10 +5685,10 @@ int eventproc(PGEventId evtId, void *evtInfo, void *passThrough) <para> Registers an event callback procedure with libpq. - <synopsis> - int PQregisterEventProc(PGconn *conn, PGEventProc proc, - const char *name, void *passThrough); - </synopsis> +<synopsis> +int PQregisterEventProc(PGconn *conn, PGEventProc proc, + const char *name, void *passThrough); +</synopsis> </para> <para> @@ -5726,9 +5726,9 @@ int eventproc(PGEventId evtId, void *evtInfo, void *passThrough) for success and zero for failure. (Failure is only possible if the proc has not been properly registered in the conn.) - <synopsis> - int PQsetInstanceData(PGconn *conn, PGEventProc proc, void *data); - </synopsis> +<synopsis> +int PQsetInstanceData(PGconn *conn, PGEventProc proc, void *data); +</synopsis> </para> </listitem> </varlistentry> @@ -5745,9 +5745,9 @@ int eventproc(PGEventId evtId, void *evtInfo, void *passThrough) Returns the conn's instanceData associated with proc, or NULL if there is none. - <synopsis> - void *PQinstanceData(const PGconn *conn, PGEventProc proc); - </synopsis> +<synopsis> +void *PQinstanceData(const PGconn *conn, PGEventProc proc); +</synopsis> </para> </listitem> </varlistentry> @@ -5765,9 +5765,9 @@ int eventproc(PGEventId evtId, void *evtInfo, void *passThrough) for success and zero for failure. (Failure is only possible if the proc has not been properly registered in the result.) - <synopsis> - int PQresultSetInstanceData(PGresult *res, PGEventProc proc, void *data); - </synopsis> +<synopsis> +int PQresultSetInstanceData(PGresult *res, PGEventProc proc, void *data); +</synopsis> </para> </listitem> </varlistentry> @@ -5784,9 +5784,9 @@ int eventproc(PGEventId evtId, void *evtInfo, void *passThrough) Returns the result's instanceData associated with proc, or NULL if there is none. - <synopsis> - void *PQresultInstanceData(const PGresult *res, PGEventProc proc); - </synopsis> +<synopsis> +void *PQresultInstanceData(const PGresult *res, PGEventProc proc); +</synopsis> </para> </listitem> </varlistentry> @@ -5801,7 +5801,7 @@ int eventproc(PGEventId evtId, void *evtInfo, void *passThrough) libpq connections and results. </para> - <programlisting> +<programlisting> <![CDATA[ /* required header for libpq events (note: includes libpq-fe.h) */ #include <libpq-events.h> @@ -6313,9 +6313,9 @@ myEventProc(PGEventId evtId, void *evtInfo, void *passThrough) <para> This file should contain lines of the following format: - <synopsis> - <replaceable>hostname</replaceable>:<replaceable>port</replaceable>:<replaceable>database</replaceable>:<replaceable>username</replaceable>:<replaceable>password</replaceable> - </synopsis> +<synopsis> +<replaceable>hostname</replaceable>:<replaceable>port</replaceable>:<replaceable>database</replaceable>:<replaceable>username</replaceable>:<replaceable>password</replaceable> +</synopsis> Each of the first four fields can be a literal value, or <literal>*</literal>, which matches anything. The password field from the first line that matches the current connection parameters will be @@ -6418,9 +6418,9 @@ user=admin <literal>keyword = value</literal> pairs which will be used to set connection options. The URL must conform to RFC 1959 and be of the form - <synopsis> - ldap://[<replaceable>hostname</replaceable>[:<replaceable>port</replaceable>]]/<replaceable>search_base</replaceable>?<replaceable>attribute</replaceable>?<replaceable>search_scope</replaceable>?<replaceable>filter</replaceable> - </synopsis> +<synopsis> +ldap://[<replaceable>hostname</replaceable>[:<replaceable>port</replaceable>]]/<replaceable>search_base</replaceable>?<replaceable>attribute</replaceable>?<replaceable>search_scope</replaceable>?<replaceable>filter</replaceable> +</synopsis> where <replaceable>hostname</replaceable> defaults to <literal>localhost</literal> and <replaceable>port</replaceable> defaults to 389. @@ -6438,36 +6438,36 @@ user=admin <para> A sample LDAP entry that has been created with the LDIF file - <synopsis> - version:1 - dn:cn=mydatabase,dc=mycompany,dc=com - changetype:add - objectclass:top - objectclass:groupOfUniqueNames - cn:mydatabase - uniqueMember:host=dbserver.mycompany.com - uniqueMember:port=5439 - uniqueMember:dbname=mydb - uniqueMember:user=mydb_user - uniqueMember:sslmode=require - </synopsis> +<programlisting> +version:1 +dn:cn=mydatabase,dc=mycompany,dc=com +changetype:add +objectclass:top +objectclass:groupOfUniqueNames +cn:mydatabase +uniqueMember:host=dbserver.mycompany.com +uniqueMember:port=5439 +uniqueMember:dbname=mydb +uniqueMember:user=mydb_user +uniqueMember:sslmode=require +</programlisting> might be queried with the following LDAP URL: - <synopsis> - ldap://ldap.mycompany.com/dc=mycompany,dc=com?uniqueMember?one?(cn=mydatabase) - </synopsis> +<programlisting> +ldap://ldap.mycompany.com/dc=mycompany,dc=com?uniqueMember?one?(cn=mydatabase) +</programlisting> </para> <para> You can also mix regular service file entries with LDAP lookups. A complete example for a stanza in <filename>pg_service.conf</filename> would be: - <synopsis> - # only host and port are stored in LDAP, specify dbname and user explicitly - [customerdb] - dbname=customer - user=appuser - ldap://ldap.acme.com/cn=dbserver,cn=hosts?pgconnectinfo?base?(objectclass=*) - </synopsis> +<programlisting> +# only host and port are stored in LDAP, specify dbname and user explicitly +[customerdb] +dbname=customer +user=appuser +ldap://ldap.acme.com/cn=dbserver,cn=hosts?pgconnectinfo?base?(objectclass=*) +</programlisting> </para> </sect1> @@ -6844,9 +6844,9 @@ user=admin <listitem> <para> Allows applications to select which security libraries to initialize. - <synopsis> - void PQinitOpenSSL(int do_ssl, int do_crypto); - </synopsis> +<synopsis> +void PQinitOpenSSL(int do_ssl, int do_crypto); +</synopsis> </para> <para> @@ -6880,9 +6880,9 @@ user=admin <listitem> <para> Allows applications to select which security libraries to initialize. - <synopsis> - void PQinitSSL(int do_ssl); - </synopsis> +<synopsis> +void PQinitSSL(int do_ssl); +</synopsis> </para> <para> @@ -6940,9 +6940,9 @@ user=admin <para> Returns the thread safety status of the <application>libpq</application> library. - <synopsis> - int PQisthreadsafe(); - </synopsis> +<synopsis> +int PQisthreadsafe(); +</synopsis> </para> <para> diff --git a/doc/src/sgml/lo.sgml b/doc/src/sgml/lo.sgml index f8ef48af01b9e09924d59d9648d5a9d451d5449a..cd232b92f3db5f210e8a64134fc3ead4658b3b81 100644 --- a/doc/src/sgml/lo.sgml +++ b/doc/src/sgml/lo.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/lo.sgml,v 1.3 2007/12/06 04:12:10 tgl Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/lo.sgml,v 1.4 2010/07/29 19:34:40 petere Exp $ --> <sect1 id="lo"> <title>lo</title> @@ -66,12 +66,12 @@ Here's a simple example of usage: </para> - <programlisting> - CREATE TABLE image (title TEXT, raster lo); +<programlisting> +CREATE TABLE image (title TEXT, raster lo); - CREATE TRIGGER t_raster BEFORE UPDATE OR DELETE ON image - FOR EACH ROW EXECUTE PROCEDURE lo_manage(raster); - </programlisting> +CREATE TRIGGER t_raster BEFORE UPDATE OR DELETE ON image + FOR EACH ROW EXECUTE PROCEDURE lo_manage(raster); +</programlisting> <para> For each column that will contain unique references to large objects, diff --git a/doc/src/sgml/ltree.sgml b/doc/src/sgml/ltree.sgml index 77cd6c073c02c788f9c00518d95b96e87e6a69d2..ef4e74382622f260596fbe4e768f52400948e621 100644 --- a/doc/src/sgml/ltree.sgml +++ b/doc/src/sgml/ltree.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/ltree.sgml,v 1.4 2010/03/17 17:12:31 petere Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/ltree.sgml,v 1.5 2010/07/29 19:34:40 petere Exp $ --> <sect1 id="ltree"> <title>ltree</title> @@ -58,32 +58,32 @@ for matching <type>ltree</> values. A simple word matches that label within a path. A star symbol (<literal>*</>) matches zero or more labels. For example: - <programlisting> +<synopsis> foo <lineannotation>Match the exact label path <literal>foo</></lineannotation> *.foo.* <lineannotation>Match any label path containing the label <literal>foo</></lineannotation> *.foo <lineannotation>Match any label path whose last label is <literal>foo</></lineannotation> - </programlisting> +</synopsis> </para> <para> Star symbols can also be quantified to restrict how many labels they can match: - <programlisting> +<synopsis> *{<replaceable>n</>} <lineannotation>Match exactly <replaceable>n</> labels</lineannotation> *{<replaceable>n</>,} <lineannotation>Match at least <replaceable>n</> labels</lineannotation> *{<replaceable>n</>,<replaceable>m</>} <lineannotation>Match at least <replaceable>n</> but not more than <replaceable>m</> labels</lineannotation> *{,<replaceable>m</>} <lineannotation>Match at most <replaceable>m</> labels — same as </lineannotation> *{0,<replaceable>m</>} - </programlisting> +</synopsis> </para> <para> There are several modifiers that can be put at the end of a non-star label in <type>lquery</> to make it match more than just the exact match: - <programlisting> +<synopsis> @ <lineannotation>Match case-insensitively, for example <literal>a@</> matches <literal>A</></lineannotation> * <lineannotation>Match any label with this prefix, for example <literal>foo*</> matches <literal>foobar</></lineannotation> % <lineannotation>Match initial underscore-separated words</lineannotation> - </programlisting> +</synopsis> The behavior of <literal>%</> is a bit complicated. It tries to match words rather than the entire label. For example <literal>foo_bar%</> matches <literal>foo_bar_baz</> but not @@ -102,10 +102,10 @@ foo <lineannotation>Match the exact label path <literal>foo</></lineanno <para> Here's an annotated example of <type>lquery</type>: - <programlisting> - Top.*{0,2}.sport*@.!football|tennis.Russ*|Spain - a. b. c. d. e. - </programlisting> +<programlisting> +Top.*{0,2}.sport*@.!football|tennis.Russ*|Spain +a. b. c. d. e. +</programlisting> This query will match any label path that: </para> <orderedlist numeration='loweralpha'> @@ -154,9 +154,9 @@ foo <lineannotation>Match the exact label path <literal>foo</></lineanno <para> Here's an example <type>ltxtquery</type>: - <programlisting> - Europe & Russia*@ & !Transportation - </programlisting> +<programlisting> +Europe & Russia*@ & !Transportation +</programlisting> This will match paths that contain the label <literal>Europe</literal> and any label beginning with <literal>Russia</literal> (case-insensitive), but not paths containing the label <literal>Transportation</literal>. @@ -504,9 +504,9 @@ foo <lineannotation>Match the exact label path <literal>foo</></lineanno <para> Example of creating such an index: </para> - <programlisting> - CREATE INDEX path_gist_idx ON test USING GIST (path); - </programlisting> +<programlisting> +CREATE INDEX path_gist_idx ON test USING GIST (path); +</programlisting> </listitem> <listitem> <para> @@ -517,9 +517,9 @@ foo <lineannotation>Match the exact label path <literal>foo</></lineanno <para> Example of creating such an index: </para> - <programlisting> - CREATE INDEX path_gist_idx ON test USING GIST (array_path); - </programlisting> +<programlisting> +CREATE INDEX path_gist_idx ON test USING GIST (array_path); +</programlisting> <para> Note: This index type is lossy. </para> @@ -535,7 +535,7 @@ foo <lineannotation>Match the exact label path <literal>foo</></lineanno <filename>contrib/ltree/ltreetest.sql</> in the source distribution): </para> - <programlisting> +<programlisting> CREATE TABLE test (path ltree); INSERT INTO test VALUES ('Top'); INSERT INTO test VALUES ('Top.Science'); @@ -552,31 +552,29 @@ INSERT INTO test VALUES ('Top.Collections.Pictures.Astronomy.Galaxies'); INSERT INTO test VALUES ('Top.Collections.Pictures.Astronomy.Astronauts'); CREATE INDEX path_gist_idx ON test USING gist(path); CREATE INDEX path_idx ON test USING btree(path); - </programlisting> +</programlisting> <para> Now, we have a table <structname>test</> populated with data describing the hierarchy shown below: </para> - <programlisting> - Top - / | \ - Science Hobbies Collections - / | \ - Astronomy Amateurs_Astronomy Pictures - / \ | - Astrophysics Cosmology Astronomy - / | \ - Galaxies Stars Astronauts - </programlisting> +<literallayout class="monospaced"> + Top + / | \ + Science Hobbies Collections + / | \ + Astronomy Amateurs_Astronomy Pictures + / \ | +Astrophysics Cosmology Astronomy + / | \ + Galaxies Stars Astronauts +</literallayout> <para> We can do inheritance: - </para> - - <programlisting> -ltreetest=# select path from test where path <@ 'Top.Science'; +<screen> +ltreetest=> SELECT path FROM test WHERE path <@ 'Top.Science'; path ------------------------------------ Top.Science @@ -584,14 +582,13 @@ ltreetest=# select path from test where path <@ 'Top.Science'; Top.Science.Astronomy.Astrophysics Top.Science.Astronomy.Cosmology (4 rows) - </programlisting> +</screen> + </para> <para> Here are some examples of path matching: - </para> - - <programlisting> -ltreetest=# select path from test where path ~ '*.Astronomy.*'; +<screen> +ltreetest=> SELECT path FROM test WHERE path ~ '*.Astronomy.*'; path ----------------------------------------------- Top.Science.Astronomy @@ -603,20 +600,20 @@ ltreetest=# select path from test where path ~ '*.Astronomy.*'; Top.Collections.Pictures.Astronomy.Astronauts (7 rows) -ltreetest=# select path from test where path ~ '*.!pictures@.*.Astronomy.*'; +ltreetest=> SELECT path FROM test WHERE path ~ '*.!pictures@.*.Astronomy.*'; path ------------------------------------ Top.Science.Astronomy Top.Science.Astronomy.Astrophysics Top.Science.Astronomy.Cosmology (3 rows) - </programlisting> +</screen> + </para> <para> Here are some examples of full text search: - </para> - <programlisting> -ltreetest=# select path from test where path @ 'Astro*% & !pictures@'; +<screen> +ltreetest=> SELECT path FROM test WHERE path @ 'Astro*% & !pictures@'; path ------------------------------------ Top.Science.Astronomy @@ -625,45 +622,46 @@ ltreetest=# select path from test where path @ 'Astro*% & !pictures@'; Top.Hobbies.Amateurs_Astronomy (4 rows) -ltreetest=# select path from test where path @ 'Astro* & !pictures@'; +ltreetest=> SELECT path FROM test WHERE path @ 'Astro* & !pictures@'; path ------------------------------------ Top.Science.Astronomy Top.Science.Astronomy.Astrophysics Top.Science.Astronomy.Cosmology (3 rows) - </programlisting> +</screen> + </para> <para> Path construction using functions: - </para> - <programlisting> -ltreetest=# select subpath(path,0,2)||'Space'||subpath(path,2) from test where path <@ 'Top.Science.Astronomy'; +<screen> +ltreetest=> SELECT subpath(path,0,2)||'Space'||subpath(path,2) FROM test WHERE path <@ 'Top.Science.Astronomy'; ?column? ------------------------------------------ Top.Science.Space.Astronomy Top.Science.Space.Astronomy.Astrophysics Top.Science.Space.Astronomy.Cosmology (3 rows) - </programlisting> +</screen> + </para> <para> We could simplify this by creating a SQL function that inserts a label at a specified position in a path: - </para> - <programlisting> +<screen> CREATE FUNCTION ins_label(ltree, int, text) RETURNS ltree -AS 'select subpath($1,0,$2) || $3 || subpath($1,$2);' -LANGUAGE SQL IMMUTABLE; + AS 'select subpath($1,0,$2) || $3 || subpath($1,$2);' + LANGUAGE SQL IMMUTABLE; -ltreetest=# select ins_label(path,2,'Space') from test where path <@ 'Top.Science.Astronomy'; +ltreetest=> SELECT ins_label(path,2,'Space') FROM test WHERE path <@ 'Top.Science.Astronomy'; ins_label ------------------------------------------ Top.Science.Space.Astronomy Top.Science.Space.Astronomy.Astrophysics Top.Science.Space.Astronomy.Cosmology (3 rows) - </programlisting> +</screen> + </para> </sect2> <sect2> diff --git a/doc/src/sgml/monitoring.sgml b/doc/src/sgml/monitoring.sgml index 7a9f843d22767b7f4f4fb9408ecf88570c5f0eb9..ecea9beddd6aa93864f8e3c6485bbdd72eb88dd3 100644 --- a/doc/src/sgml/monitoring.sgml +++ b/doc/src/sgml/monitoring.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/monitoring.sgml,v 1.80 2010/04/26 19:56:55 tgl Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/monitoring.sgml,v 1.81 2010/07/29 19:34:40 petere Exp $ --> <chapter id="monitoring"> <title>Monitoring Database Activity</title> @@ -1680,7 +1680,7 @@ Total time (ns) 2312105013 <para> Add the probe definition to <filename>src/backend/utils/probes.d</>: <programlisting> - probe transaction__start(LocalTransactionId); +probe transaction__start(LocalTransactionId); </programlisting> Note the use of the double underline in the probe name. In a DTrace script using the probe, the double underline needs to be replaced with a @@ -1698,7 +1698,7 @@ Total time (ns) 2312105013 in the source code. In this case, it looks like the following: <programlisting> - TRACE_POSTGRESQL_TRANSACTION_START(vxid.localTransactionId); +TRACE_POSTGRESQL_TRANSACTION_START(vxid.localTransactionId); </programlisting> </para> </step> @@ -1748,8 +1748,8 @@ Total time (ns) 2312105013 is actually enabled: <programlisting> - if (TRACE_POSTGRESQL_TRANSACTION_START_ENABLED()) - TRACE_POSTGRESQL_TRANSACTION_START(some_function(...)); +if (TRACE_POSTGRESQL_TRANSACTION_START_ENABLED()) + TRACE_POSTGRESQL_TRANSACTION_START(some_function(...)); </programlisting> Each trace macro has a corresponding <literal>ENABLED</> macro. diff --git a/doc/src/sgml/oid2name.sgml b/doc/src/sgml/oid2name.sgml index 5e793ce1993021d6e6f0badb4e0db3e0b06acde7..f4e3ee0165f5d91ef199b39d9898e96516fa5c80 100644 --- a/doc/src/sgml/oid2name.sgml +++ b/doc/src/sgml/oid2name.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/oid2name.sgml,v 1.8 2010/05/25 15:55:28 momjian Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/oid2name.sgml,v 1.9 2010/07/29 19:34:40 petere Exp $ --> <sect1 id="oid2name"> <title>oid2name</title> @@ -147,7 +147,7 @@ <sect2> <title>Examples</title> - <programlisting> +<screen> $ # what's in this database server, anyway? $ oid2name All databases: @@ -264,7 +264,7 @@ From database "alvherre": Filenode Table Name ---------------------- 155156 foo - </programlisting> +</screen> </sect2> <sect2> diff --git a/doc/src/sgml/pageinspect.sgml b/doc/src/sgml/pageinspect.sgml index a81989a2a35cdaddbdd9d37069fd798b3914ec93..2f201c8ca634bd4245a30a582968d18eb6607e28 100644 --- a/doc/src/sgml/pageinspect.sgml +++ b/doc/src/sgml/pageinspect.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/pageinspect.sgml,v 1.6 2009/06/08 16:22:44 tgl Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/pageinspect.sgml,v 1.7 2010/07/29 19:34:40 petere Exp $ --> <sect1 id="pageinspect"> <title>pageinspect</title> @@ -62,15 +62,12 @@ <para> A page image obtained with <function>get_raw_page</function> should be passed as argument. For example: - </para> - <programlisting> +<screen> test=# SELECT * FROM page_header(get_raw_page('pg_class', 0)); lsn | tli | flags | lower | upper | special | pagesize | version | prune_xid -----------+-----+-------+-------+-------+---------+----------+---------+----------- 0/24A1B50 | 1 | 1 | 232 | 368 | 8192 | 8192 | 4 | 0 - </programlisting> - - <para> +</screen> The returned columns correspond to the fields in the <structname>PageHeaderData</> struct. See <filename>src/include/storage/bufpage.h</> for details. @@ -93,11 +90,9 @@ test=# SELECT * FROM page_header(get_raw_page('pg_class', 0)); <para> A heap page image obtained with <function>get_raw_page</function> should be passed as argument. For example: - </para> - <programlisting> +<screen> test=# SELECT * FROM heap_page_items(get_raw_page('pg_class', 0)); - </programlisting> - <para> +</screen> See <filename>src/include/storage/itemid.h</> and <filename>src/include/access/htup.h</> for explanations of the fields returned. @@ -114,8 +109,7 @@ test=# SELECT * FROM heap_page_items(get_raw_page('pg_class', 0)); <para> <function>bt_metap</function> returns information about a btree index's metapage. For example: - </para> - <programlisting> +<screen> test=# SELECT * FROM bt_metap('pg_cast_oid_index'); -[ RECORD 1 ]----- magic | 340322 @@ -124,7 +118,8 @@ root | 1 level | 0 fastroot | 1 fastlevel | 0 - </programlisting> +</screen> + </para> </listitem> </varlistentry> @@ -137,8 +132,7 @@ fastlevel | 0 <para> <function>bt_page_stats</function> returns summary information about single pages of btree indexes. For example: - </para> - <programlisting> +<screen> test=# SELECT * FROM bt_page_stats('pg_cast_oid_index', 1); -[ RECORD 1 ]-+----- blkno | 1 @@ -152,7 +146,8 @@ btpo_prev | 0 btpo_next | 0 btpo | 0 btpo_flags | 3 - </programlisting> +</screen> + </para> </listitem> </varlistentry> @@ -165,8 +160,7 @@ btpo_flags | 3 <para> <function>bt_page_items</function> returns detailed information about all of the items on a btree index page. For example: - </para> - <programlisting> +<screen> test=# SELECT * FROM bt_page_items('pg_cast_oid_index', 1); itemoffset | ctid | itemlen | nulls | vars | data ------------+---------+---------+-------+------+------------- @@ -178,7 +172,8 @@ test=# SELECT * FROM bt_page_items('pg_cast_oid_index', 1); 6 | (0,6) | 12 | f | f | 28 27 00 00 7 | (0,7) | 12 | f | f | 29 27 00 00 8 | (0,8) | 12 | f | f | 2a 27 00 00 - </programlisting> +</screen> + </para> </listitem> </varlistentry> diff --git a/doc/src/sgml/pgarchivecleanup.sgml b/doc/src/sgml/pgarchivecleanup.sgml index 7a839ba5f08f7dbb40c73419a3213563f022cd1b..249921ca840eb2da6af615067f18970cb998ec54 100644 --- a/doc/src/sgml/pgarchivecleanup.sgml +++ b/doc/src/sgml/pgarchivecleanup.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/pgarchivecleanup.sgml,v 1.1 2010/06/14 17:25:24 sriggs Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/pgarchivecleanup.sgml,v 1.2 2010/07/29 19:34:40 petere Exp $ --> <sect1 id="pgarchivecleanup"> <title>pg_archivecleanup</title> @@ -38,11 +38,9 @@ To configure a standby server to use <application>pg_archivecleanup</>, put this into its <filename>recovery.conf</filename> configuration file: - </para> - <programlisting> +<programlisting> archive_cleanup_command = 'pg_archivecleanup <replaceable>archiveDir</> %r' - </programlisting> - <para> +</programlisting> where <replaceable>archiveDir</> is the directory from which WAL segment files should be restored. </para> @@ -58,11 +56,9 @@ archive_cleanup_command = 'pg_archivecleanup <replaceable>archiveDir</> %r' </para> <para> The full syntax of <application>pg_archivecleanup</>'s command line is - </para> - <synopsis> +<synopsis> pg_archivecleanup <optional> <replaceable>option</> ... </optional> <replaceable>archivelocation</> <replaceable>restartwalfile</> - </synopsis> - <para> +</synopsis> When used as a standalone program all WAL files logically preceding the <literal>restartwalfile</> will be removed <replaceable>archivelocation</>. In this mode, if you specify a .backup filename, then only the file prefix @@ -70,15 +66,13 @@ pg_archivecleanup <optional> <replaceable>option</> ... </optional> <replaceable all WAL files archived prior to a specific base backup without error. For example, the following example will remove all files older than WAL filename 000000010000003700000010: - </para> - <programlisting> +<programlisting> pg_archivecleanup -d archive 000000010000003700000010.00000020.backup pg_archivecleanup: keep WAL files 000000010000003700000010 and later pg_archivecleanup: removing "archive/00000001000000370000000F" pg_archivecleanup: removing "archive/00000001000000370000000E" - </programlisting> - <para> +</programlisting> <application>pg_archivecleanup</application> assumes that <replaceable>archivelocation</> is a directory readable and writable by the server-owning user. @@ -110,12 +104,10 @@ pg_archivecleanup: removing "archive/00000001000000370000000E" <sect2> <title>Examples</title> - <para>On Linux or Unix systems, you might use:</para> - - <programlisting> + <para>On Linux or Unix systems, you might use: +<programlisting> archive_cleanup_command = 'pg_archivecleanup -d .../archive %r 2>>cleanup.log' - </programlisting> - <para> +</programlisting> where the archive directory is physically located on the standby server, so that the <literal>archive_command</> is accessing it across NFS, but the files are local to the standby. diff --git a/doc/src/sgml/pgbench.sgml b/doc/src/sgml/pgbench.sgml index bc0cd9c0c2fdc8dbf6467c427ea84b5f316ef395..24f2e95f079e93fc50b2e534dec5ed9a1a2cf286 100644 --- a/doc/src/sgml/pgbench.sgml +++ b/doc/src/sgml/pgbench.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/pgbench.sgml,v 1.16 2010/05/25 15:55:28 momjian Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/pgbench.sgml,v 1.17 2010/07/29 19:34:40 petere Exp $ --> <sect1 id="pgbench"> <title>pgbench</title> @@ -22,7 +22,7 @@ <para> Typical output from pgbench looks like: - <programlisting> +<screen> transaction type: TPC-B (sort of) scaling factor: 10 query mode: simple @@ -32,7 +32,7 @@ number of transactions per client: 1000 number of transactions actually processed: 10000/10000 tps = 85.184871 (including connections establishing) tps = 85.296346 (excluding connections establishing) - </programlisting> +</screen> The first six lines report some of the most important parameter settings. The next line reports the number of transactions completed @@ -53,9 +53,9 @@ tps = 85.296346 (excluding connections establishing) step, but will instead need to do whatever setup your test needs.) Initialization looks like: - <programlisting> +<programlisting> pgbench -i <optional> <replaceable>other-options</> </optional> <replaceable>dbname</> - </programlisting> +</programlisting> where <replaceable>dbname</> is the name of the already-created database to test in. (You may also need <literal>-h</>, @@ -77,16 +77,14 @@ pgbench -i <optional> <replaceable>other-options</> </optional> <replaceable>dbn <para> At the default <quote>scale factor</> of 1, the tables initially contain this many rows: - </para> - <programlisting> +<screen> table # of rows --------------------------------- pgbench_branches 1 pgbench_tellers 10 pgbench_accounts 100000 pgbench_history 0 - </programlisting> - <para> +</screen> You can (and, for most purposes, probably should) increase the number of rows by using the <literal>-s</> (scale factor) option. The <literal>-F</> (fillfactor) option might also be used at this point. @@ -96,9 +94,9 @@ pgbench_history 0 Once you have done the necessary setup, you can run your benchmark with a command that doesn't include <literal>-i</>, that is - <programlisting> +<programlisting> pgbench <optional> <replaceable>options</> </optional> <replaceable>dbname</> - </programlisting> +</programlisting> In nearly all cases, you'll need some options to make a useful test. The most important options are <literal>-c</> (number of clients), @@ -478,9 +476,9 @@ pgbench <optional> <replaceable>options</> </optional> <replaceable>dbname</> <para> Example: - <programlisting> +<programlisting> \set ntellers 10 * :scale - </programlisting> +</programlisting> </para> </listitem> </varlistentry> @@ -501,9 +499,9 @@ pgbench <optional> <replaceable>options</> </optional> <replaceable>dbname</> <para> Example: - <programlisting> +<programlisting> \setrandom aid 1 :naccounts - </programlisting> +</programlisting> </para> </listitem> </varlistentry> @@ -525,9 +523,9 @@ pgbench <optional> <replaceable>options</> </optional> <replaceable>dbname</> <para> Example: - <programlisting> +<programlisting> \sleep 10 ms - </programlisting> +</programlisting> </para> </listitem> </varlistentry> @@ -554,9 +552,9 @@ pgbench <optional> <replaceable>options</> </optional> <replaceable>dbname</> <para> Example: - <programlisting> +<programlisting> \setshell variable_to_be_assigned command literal_argument :variable ::literal_starting_with_colon - </programlisting> +</programlisting> </para> </listitem> </varlistentry> @@ -573,9 +571,9 @@ pgbench <optional> <replaceable>options</> </optional> <replaceable>dbname</> <para> Example: - <programlisting> +<programlisting> \shell command literal_argument :variable ::literal_starting_with_colon - </programlisting> +</programlisting> </para> </listitem> </varlistentry> @@ -585,7 +583,7 @@ pgbench <optional> <replaceable>options</> </optional> <replaceable>dbname</> As an example, the full definition of the built-in TPC-B-like transaction is: - <programlisting> +<programlisting> \set nbranches :scale \set ntellers 10 * :scale \set naccounts 100000 * :scale @@ -600,7 +598,7 @@ UPDATE pgbench_tellers SET tbalance = tbalance + :delta WHERE tid = :tid; UPDATE pgbench_branches SET bbalance = bbalance + :delta WHERE bid = :bid; INSERT INTO pgbench_history (tid, bid, aid, delta, mtime) VALUES (:tid, :bid, :aid, :delta, CURRENT_TIMESTAMP); END; - </programlisting> +</programlisting> This script allows each iteration of the transaction to reference different, randomly-chosen rows. (This example also shows why it's @@ -630,9 +628,9 @@ END; <para> The format of the log is: - <programlisting> - <replaceable>client_id</> <replaceable>transaction_no</> <replaceable>time</> <replaceable>file_no</> <replaceable>time_epoch</> <replaceable>time_us</> - </programlisting> +<synopsis> +<replaceable>client_id</> <replaceable>transaction_no</> <replaceable>time</> <replaceable>file_no</> <replaceable>time_epoch</> <replaceable>time_us</> +</synopsis> where <replaceable>time</> is the elapsed transaction time in microseconds, <replaceable>file_no</> identifies which script file was used @@ -646,12 +644,12 @@ END; <para> Here are example outputs: - <programlisting> +<screen> 0 199 2241 0 1175850568 995598 0 200 2465 0 1175850568 998079 0 201 2513 0 1175850569 608 0 202 2038 0 1175850569 2663 - </programlisting> +</screen> </para> </sect2> diff --git a/doc/src/sgml/pgbuffercache.sgml b/doc/src/sgml/pgbuffercache.sgml index 3ea74ec507de6e3820701609a7cc1b302c9a84c5..dc402ed490efb9301405bb8f6be564656a2da071 100644 --- a/doc/src/sgml/pgbuffercache.sgml +++ b/doc/src/sgml/pgbuffercache.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/pgbuffercache.sgml,v 2.6 2010/02/07 20:48:09 tgl Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/pgbuffercache.sgml,v 2.7 2010/07/29 19:34:40 petere Exp $ --> <sect1 id="pgbuffercache"> <title>pg_buffercache</title> @@ -134,29 +134,30 @@ <sect2> <title>Sample output</title> - <programlisting> - regression=# SELECT c.relname, count(*) AS buffers - FROM pg_buffercache b INNER JOIN pg_class c - ON b.relfilenode = pg_relation_filenode(c.oid) AND - b.reldatabase IN (0, (SELECT oid FROM pg_database - WHERE datname = current_database())) - GROUP BY c.relname - ORDER BY 2 DESC - LIMIT 10; - relname | buffers - ---------------------------------+--------- - tenk2 | 345 - tenk1 | 141 - pg_proc | 46 - pg_class | 45 - pg_attribute | 43 - pg_class_relname_nsp_index | 30 - pg_proc_proname_args_nsp_index | 28 - pg_attribute_relid_attnam_index | 26 - pg_depend | 22 - pg_depend_reference_index | 20 - (10 rows) - </programlisting> +<screen> +regression=# SELECT c.relname, count(*) AS buffers + FROM pg_buffercache b INNER JOIN pg_class c + ON b.relfilenode = pg_relation_filenode(c.oid) AND + b.reldatabase IN (0, (SELECT oid FROM pg_database + WHERE datname = current_database())) + GROUP BY c.relname + ORDER BY 2 DESC + LIMIT 10; + + relname | buffers +---------------------------------+--------- + tenk2 | 345 + tenk1 | 141 + pg_proc | 46 + pg_class | 45 + pg_attribute | 43 + pg_class_relname_nsp_index | 30 + pg_proc_proname_args_nsp_index | 28 + pg_attribute_relid_attnam_index | 26 + pg_depend | 22 + pg_depend_reference_index | 20 +(10 rows) +</screen> </sect2> <sect2> diff --git a/doc/src/sgml/pgcrypto.sgml b/doc/src/sgml/pgcrypto.sgml index 64be7cc73daa5a806ceb23703499521f9a9d002e..9cf034cfac1c7f0869144d6049929652dbd650d9 100644 --- a/doc/src/sgml/pgcrypto.sgml +++ b/doc/src/sgml/pgcrypto.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/pgcrypto.sgml,v 1.9 2010/06/29 22:29:14 momjian Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/pgcrypto.sgml,v 1.10 2010/07/29 19:34:40 petere Exp $ --> <sect1 id="pgcrypto"> <title>pgcrypto</title> @@ -18,10 +18,10 @@ <sect3> <title><function>digest()</function></title> - <synopsis> - digest(data text, type text) returns bytea - digest(data bytea, type text) returns bytea - </synopsis> +<synopsis> +digest(data text, type text) returns bytea +digest(data bytea, type text) returns bytea +</synopsis> <para> Computes a binary hash of the given <parameter>data</>. @@ -37,21 +37,21 @@ <para> If you want the digest as a hexadecimal string, use <function>encode()</> on the result. For example: +<programlisting> +CREATE OR REPLACE FUNCTION sha1(bytea) returns text AS $$ + SELECT encode(digest($1, 'sha1'), 'hex') +$$ LANGUAGE SQL STRICT IMMUTABLE; +</programlisting> </para> - <programlisting> - CREATE OR REPLACE FUNCTION sha1(bytea) returns text AS $$ - SELECT encode(digest($1, 'sha1'), 'hex') - $$ LANGUAGE SQL STRICT IMMUTABLE; - </programlisting> </sect3> <sect3> <title><function>hmac()</function></title> - <synopsis> - hmac(data text, key text, type text) returns bytea - hmac(data bytea, key text, type text) returns bytea - </synopsis> +<synopsis> +hmac(data text, key text, type text) returns bytea +hmac(data bytea, key text, type text) returns bytea +</synopsis> <para> Calculates hashed MAC for <parameter>data</> with key <parameter>key</>. @@ -163,9 +163,9 @@ <sect3> <title><function>crypt()</></title> - <synopsis> - crypt(password text, salt text) returns text - </synopsis> +<synopsis> +crypt(password text, salt text) returns text +</synopsis> <para> Calculates a crypt(3)-style hash of <parameter>password</>. @@ -176,17 +176,15 @@ </para> <para> Example of setting a new password: +<programlisting> +UPDATE ... SET pswhash = crypt('new password', gen_salt('md5')); +</programlisting> </para> - <programlisting> - UPDATE ... SET pswhash = crypt('new password', gen_salt('md5')); - </programlisting> <para> Example of authentication: - </para> - <programlisting> - SELECT pswhash = crypt('entered password', pswhash) FROM ... ; - </programlisting> - <para> +<programlisting> +SELECT pswhash = crypt('entered password', pswhash) FROM ... ; +</programlisting> This returns <literal>true</> if the entered password is correct. </para> </sect3> @@ -194,9 +192,9 @@ <sect3> <title><function>gen_salt()</></title> - <synopsis> - gen_salt(type text [, iter_count integer ]) returns text - </synopsis> +<synopsis> +gen_salt(type text [, iter_count integer ]) returns text +</synopsis> <para> Generates a new random salt string for use in <function>crypt()</>. @@ -489,10 +487,10 @@ <sect3> <title><function>pgp_sym_encrypt()</function></title> - <synopsis> - pgp_sym_encrypt(data text, psw text [, options text ]) returns bytea - pgp_sym_encrypt_bytea(data bytea, psw text [, options text ]) returns bytea - </synopsis> +<synopsis> +pgp_sym_encrypt(data text, psw text [, options text ]) returns bytea +pgp_sym_encrypt_bytea(data bytea, psw text [, options text ]) returns bytea +</synopsis> <para> Encrypt <parameter>data</> with a symmetric PGP key <parameter>psw</>. The <parameter>options</> parameter can contain option settings, @@ -503,10 +501,10 @@ <sect3> <title><function>pgp_sym_decrypt()</function></title> - <synopsis> - pgp_sym_decrypt(msg bytea, psw text [, options text ]) returns text - pgp_sym_decrypt_bytea(msg bytea, psw text [, options text ]) returns bytea - </synopsis> +<synopsis> +pgp_sym_decrypt(msg bytea, psw text [, options text ]) returns text +pgp_sym_decrypt_bytea(msg bytea, psw text [, options text ]) returns bytea +</synopsis> <para> Decrypt a symmetric-key-encrypted PGP message. </para> @@ -524,10 +522,10 @@ <sect3> <title><function>pgp_pub_encrypt()</function></title> - <synopsis> - pgp_pub_encrypt(data text, key bytea [, options text ]) returns bytea - pgp_pub_encrypt_bytea(data bytea, key bytea [, options text ]) returns bytea - </synopsis> +<synopsis> +pgp_pub_encrypt(data text, key bytea [, options text ]) returns bytea +pgp_pub_encrypt_bytea(data bytea, key bytea [, options text ]) returns bytea +</synopsis> <para> Encrypt <parameter>data</> with a public PGP key <parameter>key</>. Giving this function a secret key will produce a error. @@ -541,10 +539,10 @@ <sect3> <title><function>pgp_pub_decrypt()</function></title> - <synopsis> - pgp_pub_decrypt(msg bytea, key bytea [, psw text [, options text ]]) returns text - pgp_pub_decrypt_bytea(msg bytea, key bytea [, psw text [, options text ]]) returns bytea - </synopsis> +<synopsis> +pgp_pub_decrypt(msg bytea, key bytea [, psw text [, options text ]]) returns text +pgp_pub_decrypt_bytea(msg bytea, key bytea [, psw text [, options text ]]) returns bytea +</synopsis> <para> Decrypt a public-key-encrypted message. <parameter>key</> must be the secret key corresponding to the public key that was used to encrypt. @@ -566,9 +564,9 @@ <sect3> <title><function>pgp_key_id()</function></title> - <synopsis> - pgp_key_id(bytea) returns text - </synopsis> +<synopsis> +pgp_key_id(bytea) returns text +</synopsis> <para> <function>pgp_key_id</> extracts the key ID of a PGP public or secret key. Or it gives the key ID that was used for encrypting the data, if given @@ -608,10 +606,10 @@ <sect3> <title><function>armor()</function>, <function>dearmor()</function></title> - <synopsis> - armor(data bytea) returns text - dearmor(data text) returns bytea - </synopsis> +<synopsis> +armor(data bytea) returns text +dearmor(data text) returns bytea +</synopsis> <para> These functions wrap/unwrap binary data into PGP Ascii Armor format, which is basically Base64 with CRC and additional formatting. @@ -625,10 +623,10 @@ Options are named to be similar to GnuPG. An option's value should be given after an equal sign; separate options from each other with commas. For example: +<programlisting> +pgp_sym_encrypt(data, psw, 'compress-algo=1, cipher-algo=aes256') +</programlisting> </para> - <programlisting> - pgp_sym_encrypt(data, psw, 'compress-algo=1, cipher-algo=aes256') - </programlisting> <para> All of the options except <literal>convert-crlf</literal> apply only to @@ -648,11 +646,11 @@ <para> Which cipher algorithm to use. </para> - <programlisting> - Values: bf, aes128, aes192, aes256 (OpenSSL-only: <literal>3des</literal>, <literal>cast5</literal>) - Default: aes128 - Applies to: pgp_sym_encrypt, pgp_pub_encrypt - </programlisting> +<literallayout> +Values: bf, aes128, aes192, aes256 (OpenSSL-only: <literal>3des</literal>, <literal>cast5</literal>) +Default: aes128 +Applies to: pgp_sym_encrypt, pgp_pub_encrypt +</literallayout> </sect4> <sect4> @@ -662,14 +660,14 @@ Which compression algorithm to use. Only available if <productname>PostgreSQL</productname> was built with zlib. </para> - <programlisting> - Values: - 0 - no compression - 1 - ZIP compression - 2 - ZLIB compression (= ZIP plus meta-data and block CRCs) - Default: 0 - Applies to: pgp_sym_encrypt, pgp_pub_encrypt - </programlisting> +<literallayout> +Values: + 0 - no compression + 1 - ZIP compression + 2 - ZLIB compression (= ZIP plus meta-data and block CRCs) +Default: 0 +Applies to: pgp_sym_encrypt, pgp_pub_encrypt +</literallayout> </sect4> <sect4> @@ -679,11 +677,11 @@ How much to compress. Higher levels compress smaller but are slower. 0 disables compression. </para> - <programlisting> - Values: 0, 1-9 - Default: 6 - Applies to: pgp_sym_encrypt, pgp_pub_encrypt - </programlisting> +<literallayout> +Values: 0, 1-9 +Default: 6 +Applies to: pgp_sym_encrypt, pgp_pub_encrypt +</literallayout> </sect4> <sect4> @@ -696,11 +694,11 @@ <literal>\r\n</literal> line-feeds. Use this to get fully RFC-compliant behavior. </para> - <programlisting> - Values: 0, 1 - Default: 0 - Applies to: pgp_sym_encrypt, pgp_pub_encrypt, pgp_sym_decrypt, pgp_pub_decrypt - </programlisting> +<literallayout> +Values: 0, 1 +Default: 0 +Applies to: pgp_sym_encrypt, pgp_pub_encrypt, pgp_sym_decrypt, pgp_pub_decrypt +</literallayout> </sect4> <sect4> @@ -712,11 +710,11 @@ the addition of SHA-1 protected packets to RFC 4880. Recent gnupg.org and pgp.com software supports it fine. </para> - <programlisting> - Values: 0, 1 - Default: 0 - Applies to: pgp_sym_encrypt, pgp_pub_encrypt - </programlisting> +<literallayout> +Values: 0, 1 +Default: 0 +Applies to: pgp_sym_encrypt, pgp_pub_encrypt +</literallayout> </sect4> <sect4> @@ -727,11 +725,11 @@ session key; this is for symmetric-key encryption, which by default uses the S2K key directly. </para> - <programlisting> - Values: 0, 1 - Default: 0 - Applies to: pgp_sym_encrypt - </programlisting> +<literallayout> +Values: 0, 1 +Default: 0 +Applies to: pgp_sym_encrypt +</literallayout> </sect4> <sect4> @@ -740,14 +738,14 @@ <para> Which S2K algorithm to use. </para> - <programlisting> - Values: - 0 - Without salt. Dangerous! - 1 - With salt but with fixed iteration count. - 3 - Variable iteration count. - Default: 3 - Applies to: pgp_sym_encrypt - </programlisting> +<literallayout> +Values: + 0 - Without salt. Dangerous! + 1 - With salt but with fixed iteration count. + 3 - Variable iteration count. +Default: 3 +Applies to: pgp_sym_encrypt +</literallayout> </sect4> <sect4> @@ -756,11 +754,11 @@ <para> Which digest algorithm to use in S2K calculation. </para> - <programlisting> - Values: md5, sha1 - Default: sha1 - Applies to: pgp_sym_encrypt - </programlisting> +<literallayout> +Values: md5, sha1 +Default: sha1 +Applies to: pgp_sym_encrypt +</literallayout> </sect4> <sect4> @@ -769,11 +767,11 @@ <para> Which cipher to use for encrypting separate session key. </para> - <programlisting> - Values: bf, aes, aes128, aes192, aes256 - Default: use cipher-algo - Applies to: pgp_sym_encrypt - </programlisting> +<literallayout> +Values: bf, aes, aes128, aes192, aes256 +Default: use cipher-algo +Applies to: pgp_sym_encrypt +</literallayout> </sect4> <sect4> @@ -785,11 +783,11 @@ be done, but the message will be tagged as UTF-8. Without this option it will not be. </para> - <programlisting> - Values: 0, 1 - Default: 0 - Applies to: pgp_sym_encrypt, pgp_pub_encrypt - </programlisting> +<literallayout> +Values: 0, 1 +Default: 0 +Applies to: pgp_sym_encrypt, pgp_pub_encrypt +</literallayout> </sect4> </sect3> @@ -798,10 +796,10 @@ <para> To generate a new key: +<programlisting> +gpg --gen-key +</programlisting> </para> - <programlisting> - gpg --gen-key - </programlisting> <para> The preferred key type is <quote>DSA and Elgamal</>. </para> @@ -812,22 +810,22 @@ </para> <para> To list keys: +<programlisting> +gpg --list-secret-keys +</programlisting> </para> - <programlisting> - gpg --list-secret-keys - </programlisting> <para> To export a public key in ascii-armor format: +<programlisting> +gpg -a --export KEYID > public.key +</programlisting> </para> - <programlisting> - gpg -a --export KEYID > public.key - </programlisting> <para> To export a secret key in ascii-armor format: +<programlisting> +gpg -a --export-secret-keys KEYID > secret.key +</programlisting> </para> - <programlisting> - gpg -a --export-secret-keys KEYID > secret.key - </programlisting> <para> You need to use <function>dearmor()</> on these keys before giving them to the PGP functions. Or if you can handle binary data, you can drop @@ -905,34 +903,29 @@ encryption functions is discouraged. </para> - <synopsis> - encrypt(data bytea, key bytea, type text) returns bytea - decrypt(data bytea, key bytea, type text) returns bytea +<synopsis> +encrypt(data bytea, key bytea, type text) returns bytea +decrypt(data bytea, key bytea, type text) returns bytea - encrypt_iv(data bytea, key bytea, iv bytea, type text) returns bytea - decrypt_iv(data bytea, key bytea, iv bytea, type text) returns bytea - </synopsis> +encrypt_iv(data bytea, key bytea, iv bytea, type text) returns bytea +decrypt_iv(data bytea, key bytea, iv bytea, type text) returns bytea +</synopsis> <para> Encrypt/decrypt data using the cipher method specified by <parameter>type</parameter>. The syntax of the <parameter>type</parameter> string is: - </para> - <synopsis> - <replaceable>algorithm</> <optional> <literal>-</> <replaceable>mode</> </optional> <optional> <literal>/pad:</> <replaceable>padding</> </optional> - </synopsis> - - <para> +<synopsis> +<replaceable>algorithm</> <optional> <literal>-</> <replaceable>mode</> </optional> <optional> <literal>/pad:</> <replaceable>padding</> </optional> +</synopsis> where <replaceable>algorithm</> is one of: - </para> + <itemizedlist> <listitem><para><literal>bf</literal> — Blowfish</para></listitem> <listitem><para><literal>aes</literal> — AES (Rijndael-128)</para></listitem> </itemizedlist> - <para> and <replaceable>mode</> is one of: - </para> <itemizedlist> <listitem> <para> @@ -946,9 +939,7 @@ </para> </listitem> </itemizedlist> - <para> and <replaceable>padding</> is one of: - </para> <itemizedlist> <listitem> <para> @@ -961,13 +952,14 @@ </para> </listitem> </itemizedlist> + </para> <para> So, for example, these are equivalent: +<programlisting> +encrypt(data, 'fooz', 'bf') +encrypt(data, 'fooz', 'bf-cbc/pad:pkcs') +</programlisting> </para> - <programlisting> - encrypt(data, 'fooz', 'bf') - encrypt(data, 'fooz', 'bf-cbc/pad:pkcs') - </programlisting> <para> In <function>encrypt_iv</> and <function>decrypt_iv</>, the <parameter>iv</> parameter is the initial value for the CBC mode; @@ -980,9 +972,9 @@ <sect2> <title>Random-data functions</title> - <synopsis> - gen_random_bytes(count integer) returns bytea - </synopsis> +<synopsis> +gen_random_bytes(count integer) returns bytea +</synopsis> <para> Returns <parameter>count</> cryptographically strong random bytes. At most 1024 bytes can be extracted at a time. This is to avoid diff --git a/doc/src/sgml/pgfreespacemap.sgml b/doc/src/sgml/pgfreespacemap.sgml index 31d3b836a3ac097f2daaf694e34f8c659c7aa2cd..21d1b64ad91821a1c1f62a44c8a163714a67887b 100644 --- a/doc/src/sgml/pgfreespacemap.sgml +++ b/doc/src/sgml/pgfreespacemap.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/pgfreespacemap.sgml,v 2.6 2010/04/23 23:21:43 rhaas Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/pgfreespacemap.sgml,v 2.7 2010/07/29 19:34:40 petere Exp $ --> <sect1 id="pgfreespacemap"> <title>pg_freespacemap</title> @@ -75,7 +75,7 @@ <sect2> <title>Sample output</title> - <programlisting> +<screen> postgres=# SELECT * FROM pg_freespace('foo'); blkno | avail -------+------- @@ -106,8 +106,7 @@ postgres=# SELECT * FROM pg_freespace('foo', 7); -------------- 1216 (1 row) - - </programlisting> +</screen> </sect2> <sect2> diff --git a/doc/src/sgml/pgrowlocks.sgml b/doc/src/sgml/pgrowlocks.sgml index f2f58dbd3c85210dad98e7559d89572b1ebd8b5d..51c6088a745d13a4633140b7d856456257515565 100644 --- a/doc/src/sgml/pgrowlocks.sgml +++ b/doc/src/sgml/pgrowlocks.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/pgrowlocks.sgml,v 1.5 2009/05/18 11:08:24 petere Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/pgrowlocks.sgml,v 1.6 2010/07/29 19:34:40 petere Exp $ --> <sect1 id="pgrowlocks"> <title>pgrowlocks</title> @@ -101,10 +101,10 @@ pgrowlocks(text) returns setof record rows. If you want to take a look at the row contents at the same time, you could do something like this: - <programlisting> +<programlisting> SELECT * FROM accounts AS a, pgrowlocks('accounts') AS p WHERE p.locked_row = a.ctid; - </programlisting> +</programlisting> Be aware however that (as of <productname>PostgreSQL</> 8.3) such a query will be very inefficient. @@ -114,7 +114,7 @@ SELECT * FROM accounts AS a, pgrowlocks('accounts') AS p <sect2> <title>Sample output</title> - <programlisting> +<screen> test=# SELECT * FROM pgrowlocks('t1'); locked_row | lock_type | locker | multi | xids | pids ------------+-----------+--------+-------+-----------+--------------- @@ -123,7 +123,7 @@ test=# SELECT * FROM pgrowlocks('t1'); (0,3) | Exclusive | 804 | f | {804} | {29066} (0,4) | Exclusive | 804 | f | {804} | {29066} (4 rows) - </programlisting> +</screen> </sect2> <sect2> diff --git a/doc/src/sgml/pgstandby.sgml b/doc/src/sgml/pgstandby.sgml index 2a4e03185f9522da800f9d50c61f2af8fab14b4c..d6dce935ffdcb12ee2228047ffb476b0d8db1c1c 100644 --- a/doc/src/sgml/pgstandby.sgml +++ b/doc/src/sgml/pgstandby.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/pgstandby.sgml,v 2.11 2010/05/25 15:55:28 momjian Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/pgstandby.sgml,v 2.12 2010/07/29 19:34:40 petere Exp $ --> <sect1 id="pgstandby"> <title>pg_standby</title> @@ -50,21 +50,17 @@ To configure a standby server to use <application>pg_standby</>, put this into its <filename>recovery.conf</filename> configuration file: - </para> - <programlisting> +<programlisting> restore_command = 'pg_standby <replaceable>archiveDir</> %f %p %r' - </programlisting> - <para> +</programlisting> where <replaceable>archiveDir</> is the directory from which WAL segment files should be restored. </para> <para> The full syntax of <application>pg_standby</>'s command line is - </para> - <synopsis> +<synopsis> pg_standby <optional> <replaceable>option</> ... </optional> <replaceable>archivelocation</> <replaceable>nextwalfile</> <replaceable>xlogfilepath</> <optional> <replaceable>restartwalfile</> </optional> - </synopsis> - <para> +</synopsis> When used within <literal>restore_command</literal>, the <literal>%f</> and <literal>%p</> macros should be specified for <replaceable>nextwalfile</> and <replaceable>xlogfilepath</> respectively, to provide the actual file @@ -235,21 +231,19 @@ pg_standby <optional> <replaceable>option</> ... </optional> <replaceable>archiv <sect2> <title>Examples</title> - <para>On Linux or Unix systems, you might use:</para> + <para>On Linux or Unix systems, you might use: - <programlisting> +<programlisting> archive_command = 'cp %p .../archive/%f' restore_command = 'pg_standby -d -s 2 -t /tmp/pgsql.trigger.5442 .../archive %f %p %r 2>>standby.log' recovery_end_command = 'rm -f /tmp/pgsql.trigger.5442' - </programlisting> - <para> +</programlisting> where the archive directory is physically located on the standby server, so that the <literal>archive_command</> is accessing it across NFS, but the files are local to the standby (enabling use of <literal>ln</>). This will: - </para> <itemizedlist> <listitem> <para> @@ -279,22 +273,21 @@ recovery_end_command = 'rm -f /tmp/pgsql.trigger.5442' </para> </listitem> </itemizedlist> + </para> - <para>On Windows, you might use:</para> + <para>On Windows, you might use: - <programlisting> +<programlisting> archive_command = 'copy %p ...\\archive\\%f' restore_command = 'pg_standby -d -s 5 -t C:\pgsql.trigger.5442 ...\archive %f %p %r 2>>standby.log' recovery_end_command = 'del C:\pgsql.trigger.5442' - </programlisting> - <para> +</programlisting> Note that backslashes need to be doubled in the <literal>archive_command</>, but <emphasis>not</emphasis> in the <literal>restore_command</> or <literal>recovery_end_command</>. This will: - </para> <itemizedlist> <listitem> <para> @@ -329,6 +322,7 @@ recovery_end_command = 'del C:\pgsql.trigger.5442' </para> </listitem> </itemizedlist> + </para> <para> The <literal>copy</> command on Windows sets the final file size diff --git a/doc/src/sgml/pgstatstatements.sgml b/doc/src/sgml/pgstatstatements.sgml index 3bd3d60d765d9c0e3123ee65b2da30352311b6a3..abd811ad4d176bcef54242b6742a69c1a3cedf1b 100644 --- a/doc/src/sgml/pgstatstatements.sgml +++ b/doc/src/sgml/pgstatstatements.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/pgstatstatements.sgml,v 1.6 2010/01/08 00:38:20 itagaki Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/pgstatstatements.sgml,v 1.7 2010/07/29 19:34:40 petere Exp $ --> <sect1 id="pgstatstatements"> <title>pg_stat_statements</title> @@ -279,22 +279,22 @@ <filename>postgresql.conf</> file, you will need to add <literal>pg_stat_statements</> to <xref linkend="guc-custom-variable-classes">. Typical usage might be: - </para> - <programlisting> +<programlisting> # postgresql.conf shared_preload_libraries = 'pg_stat_statements' custom_variable_classes = 'pg_stat_statements' pg_stat_statements.max = 10000 pg_stat_statements.track = all - </programlisting> +</programlisting> + </para> </sect2> <sect2> <title>Sample output</title> - <programlisting> +<screen> bench=# SELECT pg_stat_statements_reset(); $ pgbench -i bench @@ -334,7 +334,7 @@ calls | 1 total_time | 0.08142 rows | 0 hit_percent | 34.4947735191637631 - </programlisting> +</screen> </sect2> <sect2> diff --git a/doc/src/sgml/pgstattuple.sgml b/doc/src/sgml/pgstattuple.sgml index c50a777bc50f172f44bd3aa1454ec1a123f5a46b..a657e80928cbbcb7eb9df640af6a0d0466974389 100644 --- a/doc/src/sgml/pgstattuple.sgml +++ b/doc/src/sgml/pgstattuple.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/pgstattuple.sgml,v 1.5 2009/05/18 11:08:24 petere Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/pgstattuple.sgml,v 1.6 2010/07/29 19:34:40 petere Exp $ --> <sect1 id="pgstattuple"> <title>pgstattuple</title> @@ -141,8 +141,7 @@ free_percent | 1.95 <para> <function>pgstatindex</function> returns a record showing information about a btree index. For example: - </para> - <programlisting> +<programlisting> test=> SELECT * FROM pgstatindex('pg_cast_oid_index'); -[ RECORD 1 ]------+------ version | 2 @@ -155,7 +154,8 @@ empty_pages | 0 deleted_pages | 0 avg_leaf_density | 50.27 leaf_fragmentation | 0 - </programlisting> +</programlisting> + </para> <para> The output columns are: diff --git a/doc/src/sgml/pgtrgm.sgml b/doc/src/sgml/pgtrgm.sgml index 5b630f203dd40a61969480ff12b6ea75503a2170..e4c658145c473672b4e15b69a85949e4728e15dd 100644 --- a/doc/src/sgml/pgtrgm.sgml +++ b/doc/src/sgml/pgtrgm.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/pgtrgm.sgml,v 2.2 2007/12/10 05:32:51 tgl Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/pgtrgm.sgml,v 2.3 2010/07/29 19:34:40 petere Exp $ --> <sect1 id="pgtrgm"> <title>pg_trgm</title> @@ -136,27 +136,25 @@ <para> Example: - <programlisting> +<programlisting> CREATE TABLE test_trgm (t text); CREATE INDEX trgm_idx ON test_trgm USING gist (t gist_trgm_ops); - </programlisting> +</programlisting> or - <programlisting> +<programlisting> CREATE INDEX trgm_idx ON test_trgm USING gin (t gin_trgm_ops); - </programlisting> +</programlisting> </para> <para> At this point, you will have an index on the <structfield>t</> column that you can use for similarity searching. A typical query is - </para> - <programlisting> +<programlisting> SELECT t, similarity(t, '<replaceable>word</>') AS sml FROM test_trgm WHERE t % '<replaceable>word</>' ORDER BY sml DESC, t; - </programlisting> - <para> +</programlisting> This will return all values in the text column that are sufficiently similar to <replaceable>word</>, sorted from best match to worst. The index will be used to make this a fast operation even over very large data @@ -185,14 +183,12 @@ SELECT t, similarity(t, '<replaceable>word</>') AS sml <para> The first step is to generate an auxiliary table containing all the unique words in the documents: - </para> - <programlisting> +<programlisting> CREATE TABLE words AS SELECT word FROM ts_stat('SELECT to_tsvector(''simple'', bodytext) FROM documents'); - </programlisting> +</programlisting> - <para> where <structname>documents</> is a table that has a text field <structfield>bodytext</> that we wish to search. The reason for using the <literal>simple</> configuration with the <function>to_tsvector</> @@ -202,13 +198,11 @@ CREATE TABLE words AS SELECT word FROM <para> Next, create a trigram index on the word column: - </para> - <programlisting> +<programlisting> CREATE INDEX words_idx ON words USING gin(word gin_trgm_ops); - </programlisting> +</programlisting> - <para> Now, a <command>SELECT</command> query similar to the previous example can be used to suggest spellings for misspelled words in user search terms. A useful extra test is to require that the selected words are also of diff --git a/doc/src/sgml/plperl.sgml b/doc/src/sgml/plperl.sgml index 2d5a6d94a0eb1c05dceb82bbb4ffd19552dc5288..5cb512f79e91397b7376b918c793559c3618e3e0 100644 --- a/doc/src/sgml/plperl.sgml +++ b/doc/src/sgml/plperl.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/plperl.sgml,v 2.86 2010/07/08 21:35:33 petere Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/plperl.sgml,v 2.87 2010/07/29 19:34:40 petere Exp $ --> <chapter id="plperl"> <title>PL/Perl - Perl Procedural Language</title> @@ -530,10 +530,7 @@ $plan = spi_prepare('SELECT * FROM test WHERE id > $1 AND name = $2', The advantage of prepared queries is that is it possible to use one prepared plan for more than one query execution. After the plan is not needed anymore, it can be freed with <literal>spi_freeplan</literal>: - </para> - - <para> - <programlisting> +<programlisting> CREATE OR REPLACE FUNCTION init() RETURNS VOID AS $$ $_SHARED{my_plan} = spi_prepare('SELECT (now() + $1)::date AS now', 'INTERVAL'); @@ -558,10 +555,7 @@ SELECT done(); add_time | add_time | add_time ------------+------------+------------ 2005-12-10 | 2005-12-11 | 2005-12-12 - </programlisting> - </para> - - <para> +</programlisting> Note that the parameter subscript in <literal>spi_prepare</literal> is defined via $1, $2, $3, etc, so avoid declaring query strings in double quotes that might easily lead to hard-to-catch bugs. @@ -569,15 +563,12 @@ SELECT done(); <para> Another example illustrates usage of an optional parameter in <literal>spi_exec_prepared</literal>: - </para> - - <para> - <programlisting> +<programlisting> CREATE TABLE hosts AS SELECT id, ('192.168.1.'||id)::inet AS address FROM generate_series(1,3) AS id; CREATE OR REPLACE FUNCTION init_hosts_query() RETURNS VOID AS $$ - $_SHARED{plan} = spi_prepare('SELECT * FROM hosts + $_SHARED{plan} = spi_prepare('SELECT * FROM hosts WHERE address << $1', 'inet'); $$ LANGUAGE plperl; @@ -603,7 +594,7 @@ SELECT release_hosts_query(); (1,192.168.1.1) (2,192.168.1.2) (2 rows) - </programlisting> +</programlisting> </para> </listitem> </varlistentry> diff --git a/doc/src/sgml/plpgsql.sgml b/doc/src/sgml/plpgsql.sgml index ccdbb88ab9a23ccba13cf28d402ecd368d1cbcb1..adc56a7a0e72079e9c765e3e70dbb6f07f5cb726 100644 --- a/doc/src/sgml/plpgsql.sgml +++ b/doc/src/sgml/plpgsql.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/plpgsql.sgml,v 1.155 2010/07/27 20:02:06 rhaas Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/plpgsql.sgml,v 1.156 2010/07/29 19:34:40 petere Exp $ --> <chapter id="plpgsql"> <title><application>PL/pgSQL</application> - <acronym>SQL</acronym> Procedural Language</title> @@ -1217,14 +1217,14 @@ EXECUTE 'UPDATE tbl SET ' As always, care must be taken to ensure that null values in a query do not deliver unintended results. For example the <literal>WHERE</> clause <programlisting> - 'WHERE key = ' || quote_nullable(keyvalue) +'WHERE key = ' || quote_nullable(keyvalue) </programlisting> will never succeed if <literal>keyvalue</> is null, because the result of using the equality operator <literal>=</> with a null operand is always null. If you wish null to work like an ordinary key value, you would need to rewrite the above as <programlisting> - 'WHERE key IS NOT DISTINCT FROM ' || quote_nullable(keyvalue) +'WHERE key IS NOT DISTINCT FROM ' || quote_nullable(keyvalue) </programlisting> (At present, <literal>IS NOT DISTINCT FROM</> is handled much less efficiently than <literal>=</>, so don't do this unless you must. @@ -1391,20 +1391,20 @@ NULL; <para> For example, the following two fragments of code are equivalent: <programlisting> - BEGIN - y := x / 0; - EXCEPTION - WHEN division_by_zero THEN - NULL; -- ignore the error - END; +BEGIN + y := x / 0; +EXCEPTION + WHEN division_by_zero THEN + NULL; -- ignore the error +END; </programlisting> <programlisting> - BEGIN - y := x / 0; - EXCEPTION - WHEN division_by_zero THEN -- ignore the error - END; +BEGIN + y := x / 0; +EXCEPTION + WHEN division_by_zero THEN -- ignore the error +END; </programlisting> Which is preferable is a matter of taste. </para> @@ -2275,8 +2275,8 @@ END; not case-sensitive. Also, an error condition can be specified by <literal>SQLSTATE</> code; for example these are equivalent: <programlisting> - WHEN division_by_zero THEN ... - WHEN SQLSTATE '22012' THEN ... +WHEN division_by_zero THEN ... +WHEN SQLSTATE '22012' THEN ... </programlisting> </para> @@ -2295,16 +2295,16 @@ END; As an example, consider this fragment: <programlisting> - INSERT INTO mytab(firstname, lastname) VALUES('Tom', 'Jones'); - BEGIN - UPDATE mytab SET firstname = 'Joe' WHERE lastname = 'Jones'; - x := x + 1; - y := x / 0; - EXCEPTION - WHEN division_by_zero THEN - RAISE NOTICE 'caught division_by_zero'; - RETURN x; - END; +INSERT INTO mytab(firstname, lastname) VALUES('Tom', 'Jones'); +BEGIN + UPDATE mytab SET firstname = 'Joe' WHERE lastname = 'Jones'; + x := x + 1; + y := x / 0; +EXCEPTION + WHEN division_by_zero THEN + RAISE NOTICE 'caught division_by_zero'; + RETURN x; +END; </programlisting> When control reaches the assignment to <literal>y</>, it will @@ -3519,7 +3519,7 @@ SELECT * FROM sales_summary_bytime; column reference is syntactically allowed. As an extreme case, consider this example of poor programming style: <programlisting> - INSERT INTO foo (foo) VALUES (foo); +INSERT INTO foo (foo) VALUES (foo); </programlisting> The first occurrence of <literal>foo</> must syntactically be a table name, so it will not be substituted, even if the function has a variable @@ -3542,7 +3542,7 @@ SELECT * FROM sales_summary_bytime; tables: is a given name meant to refer to a table column, or a variable? Let's change the previous example to <programlisting> - INSERT INTO dest (col) SELECT foo + bar FROM src; +INSERT INTO dest (col) SELECT foo + bar FROM src; </programlisting> Here, <literal>dest</> and <literal>src</> must be table names, and <literal>col</> must be a column of <literal>dest</>, but <literal>foo</> @@ -3575,12 +3575,12 @@ SELECT * FROM sales_summary_bytime; declare it in a labeled block and use the block's label (see <xref linkend="plpgsql-structure">). For example, <programlisting> - <<block>> - DECLARE - foo int; - BEGIN - foo := ...; - INSERT INTO dest (col) SELECT block.foo + bar FROM src; +<<block>> +DECLARE + foo int; +BEGIN + foo := ...; + INSERT INTO dest (col) SELECT block.foo + bar FROM src; </programlisting> Here <literal>block.foo</> means the variable even if there is a column <literal>foo</> in <literal>src</>. Function parameters, as well as @@ -4591,17 +4591,17 @@ $$ LANGUAGE plpgsql; is equivalent to what you'd get in Oracle with: <programlisting> - BEGIN - SAVEPOINT s1; +BEGIN + SAVEPOINT s1; + ... code here ... +EXCEPTION + WHEN ... THEN + ROLLBACK TO s1; ... code here ... - EXCEPTION - WHEN ... THEN - ROLLBACK TO s1; - ... code here ... - WHEN ... THEN - ROLLBACK TO s1; - ... code here ... - END; + WHEN ... THEN + ROLLBACK TO s1; + ... code here ... +END; </programlisting> If you are translating an Oracle procedure that uses diff --git a/doc/src/sgml/ref/alter_domain.sgml b/doc/src/sgml/ref/alter_domain.sgml index dd921e1dc556ad2def4c1256bd4beae833cf3847..3033ba15f23760305e55ad1f1616d0118de81aac 100644 --- a/doc/src/sgml/ref/alter_domain.sgml +++ b/doc/src/sgml/ref/alter_domain.sgml @@ -1,5 +1,5 @@ <!-- -$PostgreSQL: pgsql/doc/src/sgml/ref/alter_domain.sgml,v 1.25 2010/04/03 07:22:56 petere Exp $ +$PostgreSQL: pgsql/doc/src/sgml/ref/alter_domain.sgml,v 1.26 2010/07/29 19:34:40 petere Exp $ PostgreSQL documentation --> @@ -22,7 +22,7 @@ PostgreSQL documentation </indexterm> <refsynopsisdiv> - <synopsis> +<synopsis> ALTER DOMAIN <replaceable class="PARAMETER">name</replaceable> { SET DEFAULT <replaceable class="PARAMETER">expression</replaceable> | DROP DEFAULT } ALTER DOMAIN <replaceable class="PARAMETER">name</replaceable> @@ -35,7 +35,7 @@ ALTER DOMAIN <replaceable class="PARAMETER">name</replaceable> OWNER TO <replaceable class="PARAMETER">new_owner</replaceable> ALTER DOMAIN <replaceable class="PARAMETER">name</replaceable> SET SCHEMA <replaceable class="PARAMETER">new_schema</replaceable> - </synopsis> +</synopsis> </refsynopsisdiv> <refsect1> @@ -214,34 +214,34 @@ ALTER DOMAIN <replaceable class="PARAMETER">name</replaceable> <para> To add a <literal>NOT NULL</literal> constraint to a domain: - <programlisting> +<programlisting> ALTER DOMAIN zipcode SET NOT NULL; - </programlisting> +</programlisting> To remove a <literal>NOT NULL</literal> constraint from a domain: - <programlisting> +<programlisting> ALTER DOMAIN zipcode DROP NOT NULL; - </programlisting> +</programlisting> </para> - <para> + <para> To add a check constraint to a domain: - <programlisting> +<programlisting> ALTER DOMAIN zipcode ADD CONSTRAINT zipchk CHECK (char_length(VALUE) = 5); - </programlisting> +</programlisting> </para> - <para> + <para> To remove a check constraint from a domain: - <programlisting> +<programlisting> ALTER DOMAIN zipcode DROP CONSTRAINT zipchk; - </programlisting> +</programlisting> </para> <para> To move the domain into a different schema: - <programlisting> +<programlisting> ALTER DOMAIN zipcode SET SCHEMA customers; - </programlisting> +</programlisting> </para> </refsect1> diff --git a/doc/src/sgml/ref/alter_sequence.sgml b/doc/src/sgml/ref/alter_sequence.sgml index 34f13d4bc075393274de2943e5d72bad5704b2f2..db13e9f70c5a4067260191fc8f5ba75c5927cfd6 100644 --- a/doc/src/sgml/ref/alter_sequence.sgml +++ b/doc/src/sgml/ref/alter_sequence.sgml @@ -1,5 +1,5 @@ <!-- -$PostgreSQL: pgsql/doc/src/sgml/ref/alter_sequence.sgml,v 1.25 2010/04/03 07:22:57 petere Exp $ +$PostgreSQL: pgsql/doc/src/sgml/ref/alter_sequence.sgml,v 1.26 2010/07/29 19:34:40 petere Exp $ PostgreSQL documentation --> @@ -22,7 +22,7 @@ PostgreSQL documentation </indexterm> <refsynopsisdiv> - <synopsis> +<synopsis> ALTER SEQUENCE <replaceable class="parameter">name</replaceable> [ INCREMENT [ BY ] <replaceable class="parameter">increment</replaceable> ] [ MINVALUE <replaceable class="parameter">minvalue</replaceable> | NO MINVALUE ] [ MAXVALUE <replaceable class="parameter">maxvalue</replaceable> | NO MAXVALUE ] [ START [ WITH ] <replaceable class="parameter">start</replaceable> ] @@ -32,7 +32,7 @@ ALTER SEQUENCE <replaceable class="parameter">name</replaceable> [ INCREMENT [ B ALTER SEQUENCE <replaceable class="parameter">name</replaceable> OWNER TO <replaceable class="PARAMETER">new_owner</replaceable> ALTER SEQUENCE <replaceable class="parameter">name</replaceable> RENAME TO <replaceable class="parameter">new_name</replaceable> ALTER SEQUENCE <replaceable class="parameter">name</replaceable> SET SCHEMA <replaceable class="parameter">new_schema</replaceable> - </synopsis> +</synopsis> </refsynopsisdiv> <refsect1> diff --git a/doc/src/sgml/ref/alter_type.sgml b/doc/src/sgml/ref/alter_type.sgml index 92e90a039beae98f1664f675465f5783db768ca4..5b8d2c0cc6845dca3523a8540cbe07646254f899 100644 --- a/doc/src/sgml/ref/alter_type.sgml +++ b/doc/src/sgml/ref/alter_type.sgml @@ -1,5 +1,5 @@ <!-- -$PostgreSQL: pgsql/doc/src/sgml/ref/alter_type.sgml,v 1.8 2010/04/03 07:22:57 petere Exp $ +$PostgreSQL: pgsql/doc/src/sgml/ref/alter_type.sgml,v 1.9 2010/07/29 19:34:40 petere Exp $ PostgreSQL documentation --> @@ -22,11 +22,11 @@ PostgreSQL documentation </indexterm> <refsynopsisdiv> - <synopsis> +<synopsis> ALTER TYPE <replaceable class="PARAMETER">name</replaceable> RENAME TO <replaceable class="PARAMETER">new_name</replaceable> ALTER TYPE <replaceable class="PARAMETER">name</replaceable> OWNER TO <replaceable class="PARAMETER">new_owner</replaceable> ALTER TYPE <replaceable class="PARAMETER">name</replaceable> SET SCHEMA <replaceable class="PARAMETER">new_schema</replaceable> - </synopsis> +</synopsis> </refsynopsisdiv> <refsect1> @@ -97,27 +97,27 @@ ALTER TYPE <replaceable class="PARAMETER">name</replaceable> SET SCHEMA <replace <refsect1> <title>Examples</title> - <para> + <para> To rename a data type: - <programlisting> +<programlisting> ALTER TYPE electronic_mail RENAME TO email; - </programlisting> +</programlisting> </para> - <para> + <para> To change the owner of the type <literal>email</literal> to <literal>joe</literal>: - <programlisting> +<programlisting> ALTER TYPE email OWNER TO joe; - </programlisting> +</programlisting> </para> <para> To change the schema of the type <literal>email</literal> to <literal>customers</literal>: - <programlisting> +<programlisting> ALTER TYPE email SET SCHEMA customers; - </programlisting> +</programlisting> </para> </refsect1> diff --git a/doc/src/sgml/ref/create_index.sgml b/doc/src/sgml/ref/create_index.sgml index 5b68cae10f2a8052e7842858d5f4151b8a75e066..0692e77c6454b3ee88e9797d52e814c8d31938c7 100644 --- a/doc/src/sgml/ref/create_index.sgml +++ b/doc/src/sgml/ref/create_index.sgml @@ -1,5 +1,5 @@ <!-- -$PostgreSQL: pgsql/doc/src/sgml/ref/create_index.sgml,v 1.74 2010/04/03 07:22:58 petere Exp $ +$PostgreSQL: pgsql/doc/src/sgml/ref/create_index.sgml,v 1.75 2010/07/29 19:34:40 petere Exp $ PostgreSQL documentation --> @@ -557,12 +557,12 @@ CREATE INDEX code_idx ON films (code) TABLESPACE indexspace; To create a GiST index on a point attribute so that we can efficiently use box operators on the result of the conversion function: - <programlisting> +<programlisting> CREATE INDEX pointloc ON points USING gist (box(location,location)); SELECT * FROM points WHERE box(location,location) && '(0,0),(1,1)'::box; - </programlisting> +</programlisting> </para> <para> diff --git a/doc/src/sgml/ref/grant.sgml b/doc/src/sgml/ref/grant.sgml index b0ac447700b9c022fae11147fe2ddd8b79ae2320..78ef0b7b33e9195ccf05cba4859de77d4fa1b0c9 100644 --- a/doc/src/sgml/ref/grant.sgml +++ b/doc/src/sgml/ref/grant.sgml @@ -1,5 +1,5 @@ <!-- -$PostgreSQL: pgsql/doc/src/sgml/ref/grant.sgml,v 1.83 2010/04/03 07:23:01 petere Exp $ +$PostgreSQL: pgsql/doc/src/sgml/ref/grant.sgml,v 1.84 2010/07/29 19:34:41 petere Exp $ PostgreSQL documentation --> @@ -492,27 +492,27 @@ GRANT <replaceable class="PARAMETER">role_name</replaceable> [, ...] TO <replace (1 row) </programlisting> The entries shown by <command>\dp</command> are interpreted thus: -<programlisting> - rolename=xxxx -- privileges granted to a role - =xxxx -- privileges granted to PUBLIC - - r -- SELECT ("read") - w -- UPDATE ("write") - a -- INSERT ("append") - d -- DELETE - D -- TRUNCATE - x -- REFERENCES - t -- TRIGGER - X -- EXECUTE - U -- USAGE - C -- CREATE - c -- CONNECT - T -- TEMPORARY - arwdDxt -- ALL PRIVILEGES (for tables, varies for other objects) - * -- grant option for preceding privilege - - /yyyy -- role that granted this privilege -</programlisting> +<literallayout class="monospaced"> +rolename=xxxx -- privileges granted to a role + =xxxx -- privileges granted to PUBLIC + + r -- SELECT ("read") + w -- UPDATE ("write") + a -- INSERT ("append") + d -- DELETE + D -- TRUNCATE + x -- REFERENCES + t -- TRIGGER + X -- EXECUTE + U -- USAGE + C -- CREATE + c -- CONNECT + T -- TEMPORARY + arwdDxt -- ALL PRIVILEGES (for tables, varies for other objects) + * -- grant option for preceding privilege + + /yyyy -- role that granted this privilege +</literallayout> The above example display would be seen by user <literal>miriam</> after creating table <literal>mytable</> and doing: diff --git a/doc/src/sgml/release-8.1.sgml b/doc/src/sgml/release-8.1.sgml index 114cb82d9c1eac1eb7fbb2b9c97df0f7000cb58b..ac77d1974ab8155d7bd99957dcba46258b2d8849 100644 --- a/doc/src/sgml/release-8.1.sgml +++ b/doc/src/sgml/release-8.1.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/release-8.1.sgml,v 1.7 2010/05/13 21:26:59 tgl Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/release-8.1.sgml,v 1.8 2010/07/29 19:34:40 petere Exp $ --> <!-- See header comment in release.sgml about typical markup --> <sect1 id="release-8-1-21"> @@ -4040,9 +4040,9 @@ psql -t -f fixseq.sql db1 | psql -e db1 Previously, only a predefined list of time zone names were supported by <command>AT TIME ZONE</>. Now any supported time zone name can be used, e.g.: - <programlisting> - SELECT CURRENT_TIMESTAMP AT TIME ZONE 'Europe/London'; - </programlisting> +<programlisting> +SELECT CURRENT_TIMESTAMP AT TIME ZONE 'Europe/London'; +</programlisting> In the above query, the time zone used is adjusted based on the daylight saving time rules that were in effect on the supplied date. @@ -4116,10 +4116,10 @@ psql -t -f fixseq.sql db1 | psql -e db1 the next day even if a daylight saving time adjustment occurs between, whereas adding <literal>24 hours</> will give a different local time when this happens. For example, under US DST rules: - <programlisting> - '2005-04-03 00:00:00-05' + '1 day' = '2005-04-04 00:00:00-04' - '2005-04-03 00:00:00-05' + '24 hours' = '2005-04-04 01:00:00-04' - </programlisting> +<programlisting> +'2005-04-03 00:00:00-05' + '1 day' = '2005-04-04 00:00:00-04' +'2005-04-03 00:00:00-05' + '24 hours' = '2005-04-04 01:00:00-04' +</programlisting> </para> </listitem> diff --git a/doc/src/sgml/release-old.sgml b/doc/src/sgml/release-old.sgml index 54fa37d98417c4ce8d9409b4ef26f66050195732..b781e8cf979deba9c984e7bbf6e3823242cb1fc1 100644 --- a/doc/src/sgml/release-old.sgml +++ b/doc/src/sgml/release-old.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/release-old.sgml,v 1.1 2009/05/02 20:17:19 tgl Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/release-old.sgml,v 1.2 2010/07/29 19:34:40 petere Exp $ --> <!-- See header comment in release.sgml about typical markup --> <sect1 id="release-7-3-21"> @@ -2919,7 +2919,7 @@ since <productname>PostgreSQL</productname> 7.1. <title>Changes</title> <para> - <programlisting> +<programlisting> Remove unused WAL segments of large transactions (Tom) Multiaction rule fix (Tom) PL/pgSQL memory allocation fix (Jan) @@ -2930,7 +2930,7 @@ Fix subselects with DISTINCT ON or LIMIT (Tom) BeOS fix Disable COPY TO/FROM a view (Tom) Cygwin build (Jason Tishler) - </programlisting> +</programlisting> </para> </sect2> </sect1> @@ -2962,13 +2962,13 @@ Cygwin build (Jason Tishler) <title>Changes</title> <para> - <programlisting> +<programlisting> Fix PL/pgSQL SELECTs when returning no rows Fix for psql backslash core dump Referential integrity privilege fix Optimizer fixes pg_dump cleanups - </programlisting> +</programlisting> </para> </sect2> </sect1> @@ -3000,7 +3000,7 @@ pg_dump cleanups <title>Changes</title> <para> - <programlisting> +<programlisting> Fix for numeric MODULO operator (Tom) pg_dump fixes (Philip) pg_dump can dump 7.0 databases (Philip) @@ -3015,7 +3015,7 @@ Fix for pg_ctl and option strings with spaces (Peter E) ODBC fixes (Hiroshi) EXTRACT can now take string argument (Thomas) Python fixes (Darcy) - </programlisting> +</programlisting> </para> </sect2> </sect1> @@ -3127,7 +3127,7 @@ Subqueries in FROM are now supported. <title>Changes</title> <para> - <programlisting> +<programlisting> Bug Fixes --------- Many multibyte/Unicode/locale fixes (Tatsuo and others) @@ -3313,7 +3313,7 @@ New contrib/pg_logger New --template option to createdb New contrib/pg_control utility (Oliver) New FreeBSD tools ipc_check, start-scripts/freebsd - </programlisting> +</programlisting> </para> </sect2> </sect1> @@ -3345,7 +3345,7 @@ New FreeBSD tools ipc_check, start-scripts/freebsd <title>Changes</title> <para> - <programlisting> +<programlisting> Jdbc fixes (Peter) Large object fix (Tom) Fix lean in COPY WITH OIDS leak (Tom) @@ -3385,7 +3385,7 @@ Buffer fix (Tom) Fix for inserting/copying longer multibyte strings into char() data types (Tatsuo) Fix for crash of backend, on abort (Tom) - </programlisting> +</programlisting> </para> </sect2> </sect1> @@ -3417,9 +3417,9 @@ Fix for crash of backend, on abort (Tom) <title>Changes</title> <para> - <programlisting> +<programlisting> Added documentation to tarball. - </programlisting> +</programlisting> </para> </sect2> </sect1> @@ -3450,7 +3450,7 @@ Added documentation to tarball. <title>Changes</title> <para> - <programlisting> +<programlisting> Fix many CLUSTER failures (Tom) Allow ALTER TABLE RENAME works on indexes (Tom) Fix plpgsql to handle datetime->timestamp and timespan->interval (Bruce) @@ -3475,7 +3475,7 @@ Fix too long syslog message (Tatsuo) Fix problem with quoted indexes that are too long (Tom) JDBC ResultSet.getTimestamp() fix (Gregory Krasnow & Floyd Marinescu) ecpg changes (Michael) - </programlisting> +</programlisting> </para> </sect2> </sect1> @@ -3626,7 +3626,7 @@ ecpg changes (Michael) <title>Changes</title> <para> - <programlisting> +<programlisting> Bug Fixes --------- Prevent function calls exceeding maximum number of arguments (Tom) @@ -3944,7 +3944,7 @@ NT fixes NetBSD fixes (Johnny C. Lam <email>lamj@stat.cmu.edu</email>) Fixes for Alpha compiles New multibyte encodings - </programlisting> +</programlisting> </para> </sect2> </sect1> @@ -3975,11 +3975,11 @@ New multibyte encodings <title>Changes</title> <para> - <programlisting> +<programlisting> Updated version of pgaccess 0.98 NT-specific patch Fix dumping rules on inherited tables - </programlisting> +</programlisting> </para> </sect2> </sect1> @@ -4012,7 +4012,7 @@ Fix dumping rules on inherited tables <title>Changes</title> <para> - <programlisting> +<programlisting> subselect+CASE fixes(Tom) Add SHLIB_LINK setting for solaris_i386 and solaris_sparc ports(Daren Sefcik) Fixes for CASE in WHERE join clauses(Tom) @@ -4037,7 +4037,7 @@ Repair logic error in LIKE: should not return LIKE_ABORT when reach end of pattern before end of text(Tom) Repair incorrect cleanup of heap memory allocation during transaction abort(Tom) Updated version of pgaccess 0.98 - </programlisting> +</programlisting> </para> </sect2> </sect1> @@ -4068,7 +4068,7 @@ Updated version of pgaccess 0.98 <title>Changes</title> <para> - <programlisting> +<programlisting> Add NT README file Portability fixes for linux_ppc, IRIX, linux_alpha, OpenBSD, alpha Remove QUERY_LIMIT, use SELECT...LIMIT @@ -4092,7 +4092,7 @@ Shared library dependencies fixed (Tom) Fixed glitches affecting GROUP BY in subselects(Tom) Fix some compiler warnings (Tomoaki Nishiyama) Add Win1250 (Czech) support (Pavel Behal) - </programlisting> +</programlisting> </para> </sect2> </sect1> @@ -4329,7 +4329,7 @@ Add Win1250 (Czech) support (Pavel Behal) <title>Changes</title> <para> - <programlisting> +<programlisting> Bug Fixes --------- Fix text<->float8 and text<->float4 conversion functions(Thomas) @@ -4491,7 +4491,7 @@ Add ARM32 support(Andrew McMurry) Better support for HP-UX 11 and UnixWare Improve file handling to be more uniform, prevent file descriptor leak(Tom) New install commands for plpgsql(Jan) - </programlisting> +</programlisting> </para> </sect2> </sect1> @@ -4695,7 +4695,7 @@ previous release of <productname>PostgreSQL</productname>. <title>Changes</title> <para> - <programlisting> +<programlisting> Bug Fixes --------- Fix for a tiny memory leak in PQsetdb/PQfinish(Bryan) @@ -4939,7 +4939,7 @@ refer to the installation and migration instructions for version 6.3. <title>Changes</title> <para> - <programlisting> +<programlisting> Configure detection improvements for tcl/tk(Brook Milligan, Alvin) Manual page improvements(Bruce) BETWEEN and LIKE fix(Thomas) @@ -4958,7 +4958,7 @@ libreadline cleanup(Erwan MAS) Remove DISTDIR(Bruce) Makefile dependency cleanup(Jeroen van Vianen) ASSERT fixes(Bruce) - </programlisting> +</programlisting> </para> </sect2> </sect1> @@ -5016,7 +5016,7 @@ refer to the installation and migration instructions for version 6.3. <title>Changes</title> <para> - <programlisting> +<programlisting> ecpg cleanup/fixes, now version 1.1(Michael Meskes) pg_user cleanup(Bruce) large object fix for pg_dump and tclsh (alvin) @@ -5044,7 +5044,7 @@ Fix Alpha port(Dwayne Bailey) Fix for text arrays containing quotes(Doug Gibson) Solaris compile fix(Albert Chin-A-Young) Better identify tcl and tk libs and includes(Bruce) - </programlisting> +</programlisting> </para> </sect2> </sect1> @@ -5191,7 +5191,7 @@ Better identify tcl and tk libs and includes(Bruce) <title>Changes</title> <para> - <programlisting> +<programlisting> Bug Fixes --------- Fix binary cursors broken by MOVE implementation(Vadim) @@ -5413,8 +5413,8 @@ Another way to avoid dump/reload is to use the following SQL command from <command>psql</command> to update the existing system table: <programlisting> - update pg_aggregate set aggfinalfn = 'cash_div_flt8' - where aggname = 'avg' and aggbasetype = 790; +update pg_aggregate set aggfinalfn = 'cash_div_flt8' + where aggname = 'avg' and aggbasetype = 790; </programlisting> </para> <para> @@ -5426,7 +5426,7 @@ This will need to be done to every existing database, including template1. <title>Changes</title> <para> - <programlisting> +<programlisting> Allow TIME and TYPE column names(Thomas) Allow larger range of true/false as boolean values(Thomas) Support output of "now" and "current"(Thomas) @@ -5438,7 +5438,7 @@ Fix avg(cash) computation(Thomas) Fix for specifying a column twice in ORDER/GROUP BY(Vadim) Documented new libpq function to return affected rows, PQcmdTuples(Bruce) Trigger function for inserting user names for INSERT/UPDATE(Brook Milligan) - </programlisting> +</programlisting> </para> </sect2> </sect1> @@ -5482,7 +5482,7 @@ because the COPY output format was improved from the 1.02 release. <title>Changes</title> <para> - <programlisting> +<programlisting> Bug Fixes --------- Fix problems with pg_dump for inheritance, sequences, archive tables(Bruce) @@ -5618,7 +5618,7 @@ Refer to the release notes for 6.1 for more details. <title>Changes</title> <para> - <programlisting> +<programlisting> fix for SET with options (Thomas) allow pg_dump/pg_dumpall to preserve ownership of all tables/objects(Bruce) new psql \connect option allows changing usernames without changing databases @@ -5636,7 +5636,7 @@ major fix for endian handling of communication to server(Thomas, Tatsuo) Fix for Solaris assembler and include files(Yoshihiko Ichikawa) allow underscores in usernames(Bruce) pg_dumpall now returns proper status, portability fix(Bruce) - </programlisting> +</programlisting> </para> </sect2> </sect1> @@ -5713,7 +5713,7 @@ because the COPY output format was improved from the 1.02 release. <title>Changes</title> <para> - <programlisting> +<programlisting> Bug Fixes --------- packet length checking in library routines @@ -5848,7 +5848,7 @@ because the COPY output format was improved from the 1.02 release. <title>Changes</title> <para> - <programlisting> +<programlisting> Bug Fixes --------- ALTER TABLE bug - running postgres process needs to re-read table definition @@ -6017,7 +6017,7 @@ Add the new built-in functions and operators of 1.02.1 to 1.01 or 1.02 1.01 or 1.02 database is named <literal>testdb</literal> and you have cut the commands from the end of this file and saved them in <filename>addfunc.sql</filename>: <programlisting> - % psql testdb -f addfunc.sql +% psql testdb -f addfunc.sql </programlisting> Those upgrading 1.02 databases will get a warning when executing the @@ -6040,7 +6040,7 @@ end-of-data marker. Also, empty strings are now loaded in as '' rather than NULL. See the copy manual page for full details. <programlisting> - sed 's/^\.$/\\./g' <in_file >out_file +sed 's/^\.$/\\./g' <in_file >out_file </programlisting> </para> <para> @@ -6169,7 +6169,7 @@ If you do, you must create a file name <literal>pg_hba</literal> in your top-lev If you do not want host-based authentication, you can comment out the line: <programlisting> - HBA = 1 +HBA = 1 </programlisting> in <filename>src/Makefile.global</filename> </para> @@ -6218,7 +6218,7 @@ Add the new built-in functions and operators of 1.01 to 1.0 If your 1.0 database is name <literal>testdb</literal>: <programlisting> - % psql testdb -f 1.0_to_1.01.sql +% psql testdb -f 1.0_to_1.01.sql </programlisting> and then execute the following commands (cut and paste from here): @@ -6563,11 +6563,11 @@ Initial release. <para> These timing results are from running the regression test with the commands - <programlisting> +<programlisting> % cd src/test/regress % make all % time make runtest - </programlisting> +</programlisting> </para> <para> Timing under Linux 2.0.27 seems to have a roughly 5% variation from run @@ -6587,20 +6587,20 @@ Initial release. <para> Timing with <function>fsync()</function> disabled: - <programlisting> - Time System - 02:00 Dual Pentium Pro 180, 224MB, UW-SCSI, Linux 2.0.36, gcc 2.7.2.3 -O2 -m486 - 04:38 Sparc Ultra 1 143MHz, 64MB, Solaris 2.6 - </programlisting> +<literallayout class="monospaced"> +Time System +02:00 Dual Pentium Pro 180, 224MB, UW-SCSI, Linux 2.0.36, gcc 2.7.2.3 -O2 -m486 +04:38 Sparc Ultra 1 143MHz, 64MB, Solaris 2.6 +</literallayout> </para> <para> Timing with <function>fsync()</function> enabled: - <programlisting> - Time System - 04:21 Dual Pentium Pro 180, 224MB, UW-SCSI, Linux 2.0.36, gcc 2.7.2.3 -O2 -m486 - </programlisting> +<literallayout class="monospaced"> +Time System +04:21 Dual Pentium Pro 180, 224MB, UW-SCSI, Linux 2.0.36, gcc 2.7.2.3 -O2 -m486 +</literallayout> For the <systemitem class="osname">Linux</systemitem> system above, using <acronym>UW-SCSI</acronym> disks rather than (older) <acronym>IDE</acronym> disks leads to a 50% improvement in speed on the regression test. @@ -6616,10 +6616,10 @@ since some additional regression tests have been included. In general, however, 6.4 should be slightly faster than the previous release (thanks, Bruce!). </para> <para> -<programlisting> - Time System - 02:26 Dual Pentium Pro 180, 96MB, UW-SCSI, Linux 2.0.30, gcc 2.7.2.1 -O2 -m486 -</programlisting> +<literallayout class="monospaced"> +Time System +02:26 Dual Pentium Pro 180, 96MB, UW-SCSI, Linux 2.0.30, gcc 2.7.2.1 -O2 -m486 +</literallayout> </para> </sect2> diff --git a/doc/src/sgml/seg.sgml b/doc/src/sgml/seg.sgml index 43b5f44c791c26f89cfdc2f96bb6da0cc9ce853d..43f71032aab4d783feff67b34bf209b9e28a1399 100644 --- a/doc/src/sgml/seg.sgml +++ b/doc/src/sgml/seg.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/seg.sgml,v 1.6 2009/12/08 20:08:30 mha Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/seg.sgml,v 1.7 2010/07/29 19:34:40 petere Exp $ --> <sect1 id="seg"> <title>seg</title> @@ -39,13 +39,13 @@ 6.50, and you input this reading into the database. What do you get when you fetch it? Watch: - <programlisting> +<screen> test=> select 6.50 :: float8 as "pH"; pH --- 6.5 (1 row) - </programlisting> +</screen> In the world of measurements, 6.50 is not the same as 6.5. It may sometimes be critically different. The experimenters usually write @@ -65,13 +65,13 @@ test=> select 6.50 :: float8 as "pH"; <para> Check this out: - <programlisting> +<screen> test=> select '6.25 .. 6.50'::seg as "pH"; pH ------------ 6.25 .. 6.50 (1 row) - </programlisting> +</screen> </para> </sect2> @@ -234,85 +234,75 @@ test=> select '6.25 .. 6.50'::seg as "pH"; <para> The <filename>seg</> module includes a GiST index operator class for <type>seg</> values. - The operators supported by the GiST opclass include: + The operators supported by the GiST opclass are shown in <xref linkend="seg-gist-operators">. </para> - <itemizedlist> - <listitem> - <programlisting> -[a, b] << [c, d] Is left of - </programlisting> - <para> - [a, b] is entirely to the left of [c, d]. That is, - [a, b] << [c, d] is true if b < c and false otherwise - </para> - </listitem> - <listitem> - <programlisting> -[a, b] >> [c, d] Is right of - </programlisting> - <para> - [a, b] is entirely to the right of [c, d]. That is, - [a, b] >> [c, d] is true if a > d and false otherwise - </para> - </listitem> - <listitem> - <programlisting> -[a, b] &< [c, d] Overlaps or is left of - </programlisting> - <para> - This might be better read as <quote>does not extend to right of</quote>. - It is true when b <= d. - </para> - </listitem> - <listitem> - <programlisting> -[a, b] &> [c, d] Overlaps or is right of - </programlisting> - <para> - This might be better read as <quote>does not extend to left of</quote>. - It is true when a >= c. - </para> - </listitem> - <listitem> - <programlisting> -[a, b] = [c, d] Same as - </programlisting> - <para> - The segments [a, b] and [c, d] are identical, that is, a = c and b = d - </para> - </listitem> - <listitem> - <programlisting> -[a, b] && [c, d] Overlaps - </programlisting> - <para> - The segments [a, b] and [c, d] overlap. - </para> - </listitem> - <listitem> - <programlisting> -[a, b] @> [c, d] Contains - </programlisting> - <para> - The segment [a, b] contains the segment [c, d], that is, - a <= c and b >= d - </para> - </listitem> - <listitem> - <programlisting> -[a, b] <@ [c, d] Contained in - </programlisting> - <para> - The segment [a, b] is contained in [c, d], that is, - a >= c and b <= d - </para> - </listitem> - </itemizedlist> + <table id="seg-gist-operators"> + <title>Seg GiST operators</title> + <tgroup cols="2"> + <thead> + <row> + <entry>Operator</entry> + <entry>Description</entry> + </row> + </thead> + + <tbody> + <row> + <entry><literal>[a, b] << [c, d]</literal></entry> + <entry>[a, b] is entirely to the left of [c, d]. That is, [a, + b] << [c, d] is true if b < c and false otherwise.</entry> + </row> + + <row> + <entry><literal>[a, b] >> [c, d]</literal></entry> + <entry>[a, b] is entirely to the right of [c, d]. That is, [a, + b] >> [c, d] is true if a > d and false otherwise.</entry> + </row> + + <row> + <entry><literal>[a, b] &< [c, d]</literal></entry> + <entry>Overlaps or is left of — This might be better read + as <quote>does not extend to right of</quote>. It is true when + b <= d.</entry> + </row> + + <row> + <entry><literal>[a, b] &> [c, d]</literal></entry> + <entry>Overlaps or is right of — This might be better read + as <quote>does not extend to left of</quote>. It is true when + a >= c.</entry> + </row> + + <row> + <entry><literal>[a, b] = [c, d]</literal></entry> + <entry>Same as — The segments [a, b] and [c, d] are + identical, that is, a = c and b = d.</entry> + </row> + + <row> + <entry><literal>[a, b] && [c, d]</literal></entry> + <entry>The segments [a, b] and [c, d] overlap.</entry> + </row> + + <row> + <entry><literal>[a, b] @> [c, d]</literal></entry> + <entry>The segment [a, b] contains the segment [c, d], that is, + a <= c and b >= d.</entry> + </row> + + <row> + <entry><literal>[a, b] <@ [c, d]</literal></entry> + <entry>The segment [a, b] is contained in [c, d], that is, a + >= c and b <= d.</entry> + </row> + </tbody> + </tgroup> + </table> <para> - (Before PostgreSQL 8.2, the containment operators @> and <@ were - respectively called @ and ~. These names are still available, but are + (Before PostgreSQL 8.2, the containment operators <literal>@></> and <literal><@</> were + respectively called <literal>@</> and <literal>~</>. These names are still available, but are deprecated and will eventually be retired. Notice that the old names are reversed from the convention formerly followed by the core geometric datatypes!) @@ -321,10 +311,28 @@ test=> select '6.25 .. 6.50'::seg as "pH"; <para> The standard B-tree operators are also provided, for example - <programlisting> -[a, b] < [c, d] Less than -[a, b] > [c, d] Greater than - </programlisting> + <informaltable> + <tgroup cols="2"> + <thead> + <row> + <entry>Operator</entry> + <entry>Description</entry> + </row> + </thead> + + <tbody> + <row> + <entry><literal>[a, b] < [c, d]</literal></entry> + <entry>Less than</entry> + </row> + + <row> + <entry><literal>[a, b] > [c, d]</literal></entry> + <entry>Greater than</entry> + </row> + </tbody> + </tgroup> + </informaltable> These operators do not make a lot of sense for any practical purpose but sorting. These operators first compare (a) to (c), @@ -347,12 +355,12 @@ test=> select '6.25 .. 6.50'::seg as "pH"; for the boundaries. For example, it adds an extra digit to the lower boundary if the resulting interval includes a power of ten: - <programlisting> +<screen> postgres=> select '10(+-)1'::seg as seg; seg --------- 9.0 .. 11 -- should be: 9 .. 11 - </programlisting> +</screen> </para> <para> diff --git a/doc/src/sgml/sql.sgml b/doc/src/sgml/sql.sgml index 62f669835c1f7f5ad0fc5cb59d825205b4fa32a6..f2f925be10923892b9c0022fab12a19cadb17d4d 100644 --- a/doc/src/sgml/sql.sgml +++ b/doc/src/sgml/sql.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/sql.sgml,v 1.48 2009/04/27 16:27:36 momjian Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/sql.sgml,v 1.49 2010/07/29 19:34:40 petere Exp $ --> <chapter id="sql-intro"> <title>SQL</title> @@ -151,7 +151,7 @@ <example> <title id="supplier-fig">The Suppliers and Parts Database</title> - <programlisting> +<screen> SUPPLIER: SELLS: SNO | SNAME | CITY SNO | PNO ----+---------+-------- -----+----- @@ -168,7 +168,7 @@ PART: 4 | 3 2 | Nut | 8 3 | Bolt | 15 4 | Cam | 25 - </programlisting> +</screen> </example> </para> @@ -530,14 +530,14 @@ attributes are taken from. We often write a relation scheme as necessary for a join. Let the following two tables be given: - <programlisting> +<screen> R: S: A | B | C C | D | E ---+---+--- ---+---+--- 1 | 2 | 3 3 | a | b 4 | 5 | 6 6 | c | d 7 | 8 | 9 - </programlisting> +</screen> </para> </example> @@ -546,7 +546,7 @@ R: S: <classname>R</classname> × <classname>S</classname> and get: - <programlisting> +<screen> R x S: A | B | R.C | S.C | D | E ---+---+-----+-----+---+--- @@ -556,7 +556,7 @@ R x S: 4 | 5 | 6 | 6 | c | d 7 | 8 | 9 | 3 | a | b 7 | 8 | 9 | 6 | c | d - </programlisting> +</screen> </para> <para> @@ -564,12 +564,12 @@ R x S: σ<subscript>R.C=S.C</subscript>(R × S) we get: - <programlisting> +<screen> A | B | R.C | S.C | D | E ---+---+-----+-----+---+--- 1 | 2 | 3 | 3 | a | b 4 | 5 | 6 | 6 | c | d - </programlisting> +</screen> </para> <para> @@ -579,12 +579,12 @@ R x S: π<subscript>R.A,R.B,R.C,S.D,S.E</subscript>(σ<subscript>R.C=S.C</subscript>(R × S)) and get: - <programlisting> +<screen> A | B | C | D | E ---+---+---+---+--- 1 | 2 | 3 | a | b 4 | 5 | 6 | c | d - </programlisting> +</screen> </para> </listitem> @@ -596,9 +596,9 @@ R x S: C and D. Then we define the division as: - <programlisting> +<programlisting> R ÷ S = {t ∣ ∀ t<subscript>s</subscript> ∈ S ∃ t<subscript>r</subscript> ∈ R - </programlisting> +</programlisting> such that t<subscript>r</subscript>(A,B)=t∧t<subscript>r</subscript>(C,D)=t<subscript>s</subscript>} @@ -615,7 +615,7 @@ t<subscript>r</subscript>(A,B)=t∧t<subscript>r</subscript>(C,D)=t<subscript> <para id="divide-example"> Given the following tables - <programlisting> +<screen> R: S: A | B | C | D C | D ---+---+---+--- ---+--- @@ -625,17 +625,17 @@ R: S: e | d | c | d e | d | e | f a | b | d | e - </programlisting> +</screen> R ÷ S is derived as - <programlisting> +<screen> A | B ---+--- a | b e | d - </programlisting> +</screen> </para> </listitem> </itemizedlist> @@ -659,9 +659,9 @@ R: S: This question can be answered using relational algebra by the following operation: - <programlisting> +<programlisting> π<subscript>SUPPLIER.SNAME</subscript>(σ<subscript>PART.PNAME='Screw'</subscript>(SUPPLIER ∏ SELLS ∏ PART)) - </programlisting> +</programlisting> </para> <para> @@ -670,12 +670,12 @@ R: S: (<xref linkend="supplier-fig" endterm="supplier-fig">) we will obtain the following result: - <programlisting> +<screen> SNAME ------- Smith Adams - </programlisting> +</screen> </para> </example> </sect2> @@ -724,9 +724,9 @@ R: S: The queries used in <acronym>TRC</acronym> are of the following form: - <programlisting> +<programlisting> x(A) ∣ F(x) - </programlisting> +</programlisting> where <literal>x</literal> is a tuple variable <classname>A</classname> is a set of attributes and <literal>F</literal> is a @@ -739,12 +739,12 @@ x(A) ∣ F(x) <xref linkend="suppl-rel-alg" endterm="suppl-rel-alg"> using <acronym>TRC</acronym> we formulate the following query: - <programlisting> +<programlisting> {x(SNAME) ∣ x ∈ SUPPLIER ∧ ∃ y ∈ SELLS ∃ z ∈ PART (y(SNO)=x(SNO) ∧ z(PNO)=y(PNO) ∧ z(PNAME)='Screw')} - </programlisting> +</programlisting> </para> <para> @@ -813,9 +813,9 @@ x(A) ∣ F(x) to involve arithmetic operations as well as comparisons, e.g.: - <programlisting> +<programlisting> A < B + 3. - </programlisting> +</programlisting> Note that + or other arithmetic operators appear neither in relational @@ -851,7 +851,7 @@ A < B + 3. <command>SELECT</command> statement, used to retrieve data. The syntax is: - <synopsis> +<synopsis> SELECT [ ALL | DISTINCT [ ON ( <replaceable class="PARAMETER">expression</replaceable> [, ...] ) ] ] * | <replaceable class="PARAMETER">expression</replaceable> [ [ AS ] <replaceable class="PARAMETER">output_name</replaceable> ] [, ...] [ INTO [ TEMPORARY | TEMP ] [ TABLE ] <replaceable class="PARAMETER">new_table</replaceable> ] @@ -864,7 +864,7 @@ SELECT [ ALL | DISTINCT [ ON ( <replaceable class="PARAMETER">expression</replac [ LIMIT { <replaceable class="PARAMETER">count</replaceable> | ALL } ] [ OFFSET <replaceable class="PARAMETER">start</replaceable> ] [ FOR { UPDATE | SHARE } [ OF <replaceable class="parameter">table_name</replaceable> [, ...] ] [ NOWAIT ] [...] ] - </synopsis> +</synopsis> </para> <para> @@ -886,19 +886,19 @@ SELECT [ ALL | DISTINCT [ ON ( <replaceable class="PARAMETER">expression</replac To retrieve all tuples from table PART where the attribute PRICE is greater than 10 we formulate the following query: - <programlisting> +<programlisting> SELECT * FROM PART WHERE PRICE > 10; - </programlisting> +</programlisting> and get the table: - <programlisting> +<screen> PNO | PNAME | PRICE -----+---------+-------- 3 | Bolt | 15 4 | Cam | 25 - </programlisting> +</screen> </para> <para> @@ -907,20 +907,20 @@ SELECT * FROM PART only the attributes PNAME and PRICE from table PART we use the statement: - <programlisting> +<programlisting> SELECT PNAME, PRICE FROM PART WHERE PRICE > 10; - </programlisting> +</programlisting> In this case the result is: - <programlisting> +<screen> PNAME | PRICE --------+-------- Bolt | 15 Cam | 25 - </programlisting> +</screen> Note that the <acronym>SQL</acronym> <command>SELECT</command> corresponds to the <quote>projection</quote> in relational algebra @@ -932,20 +932,20 @@ SELECT PNAME, PRICE The qualifications in the WHERE clause can also be logically connected using the keywords OR, AND, and NOT: - <programlisting> +<programlisting> SELECT PNAME, PRICE FROM PART WHERE PNAME = 'Bolt' AND (PRICE = 0 OR PRICE <= 15); - </programlisting> +</programlisting> will lead to the result: - <programlisting> +<screen> PNAME | PRICE --------+-------- Bolt | 15 - </programlisting> +</screen> </para> <para> @@ -953,21 +953,21 @@ SELECT PNAME, PRICE clause. For example if we want to know how much it would cost if we take two pieces of a part we could use the following query: - <programlisting> +<programlisting> SELECT PNAME, PRICE * 2 AS DOUBLE FROM PART WHERE PRICE * 2 < 50; - </programlisting> +</programlisting> and we get: - <programlisting> +<screen> PNAME | DOUBLE --------+--------- Screw | 20 Nut | 16 Bolt | 30 - </programlisting> +</screen> Note that the word DOUBLE after the keyword AS is the new title of the second column. This technique can be used for every element of the @@ -992,16 +992,16 @@ SELECT PNAME, PRICE * 2 AS DOUBLE To join the three tables SUPPLIER, PART and SELLS over their common attributes we formulate the following statement: - <programlisting> +<programlisting> SELECT S.SNAME, P.PNAME FROM SUPPLIER S, PART P, SELLS SE WHERE S.SNO = SE.SNO AND P.PNO = SE.PNO; - </programlisting> +</programlisting> and get the following table as a result: - <programlisting> +<screen> SNAME | PNAME -------+------- Smith | Screw @@ -1012,7 +1012,7 @@ SELECT S.SNAME, P.PNAME Blake | Nut Blake | Bolt Blake | Cam - </programlisting> +</screen> </para> <para> @@ -1034,13 +1034,13 @@ SELECT S.SNAME, P.PNAME <para> Another way to perform joins is to use the SQL JOIN syntax as follows: - <programlisting> -select sname, pname from supplier +<programlisting> +SELECT sname, pname from supplier JOIN sells USING (sno) JOIN part USING (pno); - </programlisting> +</programlisting> giving again: - <programlisting> +<screen> sname | pname -------+------- Smith | Screw @@ -1052,7 +1052,7 @@ select sname, pname from supplier Jones | Cam Blake | Cam (8 rows) - </programlisting> +</screen> </para> <para> @@ -1267,38 +1267,38 @@ select sname, pname from supplier If we want to know the average cost of all parts in table PART we use the following query: - <programlisting> +<programlisting> SELECT AVG(PRICE) AS AVG_PRICE FROM PART; - </programlisting> +</programlisting> </para> <para> The result is: - <programlisting> +<screen> AVG_PRICE ----------- 14.5 - </programlisting> +</screen> </para> <para> If we want to know how many parts are defined in table PART we use the statement: - <programlisting> +<programlisting> SELECT COUNT(PNO) FROM PART; - </programlisting> +</programlisting> and get: - <programlisting> +<screen> COUNT ------- 4 - </programlisting> +</screen> </para> </example> @@ -1335,23 +1335,23 @@ SELECT COUNT(PNO) If we want to know how many parts are sold by every supplier we formulate the query: - <programlisting> +<programlisting> SELECT S.SNO, S.SNAME, COUNT(SE.PNO) FROM SUPPLIER S, SELLS SE WHERE S.SNO = SE.SNO GROUP BY S.SNO, S.SNAME; - </programlisting> +</programlisting> and get: - <programlisting> +<screen> SNO | SNAME | COUNT -----+-------+------- 1 | Smith | 2 2 | Jones | 1 3 | Adams | 2 4 | Blake | 3 - </programlisting> +</screen> </para> <para> @@ -1359,7 +1359,7 @@ SELECT S.SNO, S.SNAME, COUNT(SE.PNO) First the join of the tables SUPPLIER and SELLS is derived: - <programlisting> +<screen> S.SNO | S.SNAME | SE.PNO -------+---------+-------- 1 | Smith | 1 @@ -1370,14 +1370,14 @@ SELECT S.SNO, S.SNAME, COUNT(SE.PNO) 4 | Blake | 2 4 | Blake | 3 4 | Blake | 4 - </programlisting> +</screen> </para> <para> Next we partition the tuples into groups by putting all tuples together that agree on both attributes S.SNO and S.SNAME: - <programlisting> +<screen> S.SNO | S.SNAME | SE.PNO -------+---------+-------- 1 | Smith | 1 @@ -1391,7 +1391,7 @@ SELECT S.SNO, S.SNAME, COUNT(SE.PNO) 4 | Blake | 2 | 3 | 4 - </programlisting> +</screen> </para> <para> @@ -1442,23 +1442,23 @@ SELECT S.SNO, S.SNAME, COUNT(SE.PNO) If we want only those suppliers selling more than one part we use the query: - <programlisting> +<programlisting> SELECT S.SNO, S.SNAME, COUNT(SE.PNO) FROM SUPPLIER S, SELLS SE WHERE S.SNO = SE.SNO GROUP BY S.SNO, S.SNAME HAVING COUNT(SE.PNO) > 1; - </programlisting> +</programlisting> and get: - <programlisting> +<screen> SNO | SNAME | COUNT -----+-------+------- 1 | Smith | 2 3 | Adams | 2 4 | Blake | 3 - </programlisting> +</screen> </para> </example> </para> @@ -1481,23 +1481,23 @@ SELECT S.SNO, S.SNAME, COUNT(SE.PNO) If we want to know all parts having a greater price than the part named 'Screw' we use the query: - <programlisting> +<programlisting> SELECT * FROM PART WHERE PRICE > (SELECT PRICE FROM PART WHERE PNAME='Screw'); - </programlisting> +</programlisting> </para> <para> The result is: - <programlisting> +<screen> PNO | PNAME | PRICE -----+---------+-------- 3 | Bolt | 15 4 | Cam | 25 - </programlisting> +</screen> </para> <para> @@ -1519,13 +1519,13 @@ SELECT * If we want to know all suppliers that do not sell any part (e.g., to be able to remove these suppliers from the database) we use: - <programlisting> +<programlisting> SELECT * FROM SUPPLIER S WHERE NOT EXISTS (SELECT * FROM SELLS SE WHERE SE.SNO = S.SNO); - </programlisting> +</programlisting> </para> <para> @@ -1559,14 +1559,14 @@ SELECT * If we want to know the highest average part price among all our suppliers, we cannot write MAX(AVG(PRICE)), but we can write: - <programlisting> +<programlisting> SELECT MAX(subtable.avgprice) FROM (SELECT AVG(P.PRICE) AS avgprice FROM SUPPLIER S, PART P, SELLS SE WHERE S.SNO = SE.SNO AND P.PNO = SE.PNO GROUP BY S.SNO) subtable; - </programlisting> +</programlisting> The subquery returns one row per supplier (because of its GROUP BY) and then we aggregate over those rows in the outer query. @@ -1588,7 +1588,7 @@ SELECT MAX(subtable.avgprice) <para> The following query is an example for UNION: - <programlisting> +<programlisting> SELECT S.SNO, S.SNAME, S.CITY FROM SUPPLIER S WHERE S.SNAME = 'Jones' @@ -1596,22 +1596,22 @@ UNION SELECT S.SNO, S.SNAME, S.CITY FROM SUPPLIER S WHERE S.SNAME = 'Adams'; - </programlisting> +</programlisting> gives the result: - <programlisting> +<screen> SNO | SNAME | CITY -----+-------+-------- 2 | Jones | Paris 3 | Adams | Vienna - </programlisting> +</screen> </para> <para> Here is an example for INTERSECT: - <programlisting> +<programlisting> SELECT S.SNO, S.SNAME, S.CITY FROM SUPPLIER S WHERE S.SNO > 1 @@ -1619,15 +1619,15 @@ INTERSECT SELECT S.SNO, S.SNAME, S.CITY FROM SUPPLIER S WHERE S.SNO < 3; - </programlisting> +</programlisting> gives the result: - <programlisting> +<screen> SNO | SNAME | CITY -----+-------+-------- 2 | Jones | Paris - </programlisting> +</screen> The only tuple returned by both parts of the query is the one having SNO=2. </para> @@ -1635,7 +1635,7 @@ INTERSECT <para> Finally an example for EXCEPT: - <programlisting> +<programlisting> SELECT S.SNO, S.SNAME, S.CITY FROM SUPPLIER S WHERE S.SNO > 1 @@ -1643,16 +1643,16 @@ EXCEPT SELECT S.SNO, S.SNAME, S.CITY FROM SUPPLIER S WHERE S.SNO > 3; - </programlisting> +</programlisting> gives the result: - <programlisting> +<screen> SNO | SNAME | CITY -----+-------+-------- 2 | Jones | Paris 3 | Adams | Vienna - </programlisting> +</screen> </para> </example> </para> @@ -1675,12 +1675,12 @@ EXCEPT one that creates a new relation (a new table). The syntax of the <command>CREATE TABLE</command> command is: - <synopsis> +<synopsis> CREATE TABLE <replaceable class="parameter">table_name</replaceable> (<replaceable class="parameter">name_of_attr_1</replaceable> <replaceable class="parameter">type_of_attr_1</replaceable> [, <replaceable class="parameter">name_of_attr_2</replaceable> <replaceable class="parameter">type_of_attr_2</replaceable> [, ...]]); - </synopsis> +</synopsis> <example> <title id="table-create">Table Creation</title> @@ -1690,25 +1690,25 @@ CREATE TABLE <replaceable class="parameter">table_name</replaceable> <xref linkend="supplier-fig" endterm="supplier-fig"> the following <acronym>SQL</acronym> statements are used: - <programlisting> +<programlisting> CREATE TABLE SUPPLIER (SNO INTEGER, SNAME VARCHAR(20), CITY VARCHAR(20)); - </programlisting> +</programlisting> - <programlisting> +<programlisting> CREATE TABLE PART (PNO INTEGER, PNAME VARCHAR(20), PRICE DECIMAL(4 , 2)); - </programlisting> +</programlisting> - <programlisting> +<programlisting> CREATE TABLE SELLS (SNO INTEGER, PNO INTEGER); - </programlisting> +</programlisting> </para> </example> </para> @@ -1791,10 +1791,10 @@ CREATE TABLE SELLS To create an index in <acronym>SQL</acronym> the <command>CREATE INDEX</command> command is used. The syntax is: - <programlisting> +<programlisting> CREATE INDEX <replaceable class="parameter">index_name</replaceable> ON <replaceable class="parameter">table_name</replaceable> ( <replaceable class="parameter">name_of_attribute</replaceable> ); - </programlisting> +</programlisting> </para> <para> @@ -1805,9 +1805,9 @@ CREATE INDEX <replaceable class="parameter">index_name</replaceable> To create an index named I on attribute SNAME of relation SUPPLIER we use the following statement: - <programlisting> +<programlisting> CREATE INDEX I ON SUPPLIER (SNAME); - </programlisting> +</programlisting> </para> <para> @@ -1855,10 +1855,10 @@ CREATE INDEX I ON SUPPLIER (SNAME); command is used to define a view. The syntax is: - <programlisting> +<programlisting> CREATE VIEW <replaceable class="parameter">view_name</replaceable> AS <replaceable class="parameter">select_stmt</replaceable> - </programlisting> +</programlisting> where <replaceable class="parameter">select_stmt</replaceable> is a valid select statement as defined @@ -1874,14 +1874,14 @@ CREATE VIEW <replaceable class="parameter">view_name</replaceable> the tables from <xref linkend="supplier-fig" endterm="supplier-fig"> again): - <programlisting> +<programlisting> CREATE VIEW London_Suppliers AS SELECT S.SNAME, P.PNAME FROM SUPPLIER S, PART P, SELLS SE WHERE S.SNO = SE.SNO AND P.PNO = SE.PNO AND S.CITY = 'London'; - </programlisting> +</programlisting> </para> <para> @@ -1889,18 +1889,18 @@ CREATE VIEW London_Suppliers <classname>London_Suppliers</classname> as if it were another base table: - <programlisting> +<programlisting> SELECT * FROM London_Suppliers WHERE PNAME = 'Screw'; - </programlisting> +</programlisting> which will return the following table: - <programlisting> +<screen> SNAME | PNAME -------+------- Smith | Screw - </programlisting> +</screen> </para> <para> @@ -1922,34 +1922,34 @@ SELECT * FROM London_Suppliers To destroy a table (including all tuples stored in that table) the <command>DROP TABLE</command> command is used: - <programlisting> +<programlisting> DROP TABLE <replaceable class="parameter">table_name</replaceable>; - </programlisting> +</programlisting> </para> <para> To destroy the SUPPLIER table use the following statement: - <programlisting> +<programlisting> DROP TABLE SUPPLIER; - </programlisting> +</programlisting> </para> <para> The <command>DROP INDEX</command> command is used to destroy an index: - <programlisting> +<programlisting> DROP INDEX <replaceable class="parameter">index_name</replaceable>; - </programlisting> +</programlisting> </para> <para> Finally to destroy a given view use the command <command>DROP VIEW</command>: - <programlisting> +<programlisting> DROP VIEW <replaceable class="parameter">view_name</replaceable>; - </programlisting> +</programlisting> </para> </sect3> </sect2> @@ -1966,11 +1966,11 @@ DROP VIEW <replaceable class="parameter">view_name</replaceable>; with tuples using the command <command>INSERT INTO</command>. The syntax is: - <programlisting> +<programlisting> INSERT INTO <replaceable class="parameter">table_name</replaceable> (<replaceable class="parameter">name_of_attr_1</replaceable> [, <replaceable class="parameter">name_of_attr_2</replaceable> [,...]]) VALUES (<replaceable class="parameter">val_attr_1</replaceable> [, <replaceable class="parameter">val_attr_2</replaceable> [, ...]]); - </programlisting> +</programlisting> </para> <para> @@ -1978,19 +1978,19 @@ INSERT INTO <replaceable class="parameter">table_name</replaceable> (<replaceabl <xref linkend="supplier-fig" endterm="supplier-fig">) we use the following statement: - <programlisting> +<programlisting> INSERT INTO SUPPLIER (SNO, SNAME, CITY) VALUES (1, 'Smith', 'London'); - </programlisting> +</programlisting> </para> <para> To insert the first tuple into the relation SELLS we use: - <programlisting> +<programlisting> INSERT INTO SELLS (SNO, PNO) VALUES (1, 1); - </programlisting> +</programlisting> </para> </sect3> @@ -2001,23 +2001,23 @@ INSERT INTO SELLS (SNO, PNO) To change one or more attribute values of tuples in a relation the <command>UPDATE</command> command is used. The syntax is: - <programlisting> +<programlisting> UPDATE <replaceable class="parameter">table_name</replaceable> SET <replaceable class="parameter">name_of_attr_1</replaceable> = <replaceable class="parameter">value_1</replaceable> [, ... [, <replaceable class="parameter">name_of_attr_k</replaceable> = <replaceable class="parameter">value_k</replaceable>]] WHERE <replaceable class="parameter">condition</replaceable>; - </programlisting> +</programlisting> </para> <para> To change the value of attribute PRICE of the part 'Screw' in the relation PART we use: - <programlisting> +<programlisting> UPDATE PART SET PRICE = 15 WHERE PNAME = 'Screw'; - </programlisting> +</programlisting> </para> <para> @@ -2033,20 +2033,20 @@ UPDATE PART To delete a tuple from a particular table use the command DELETE FROM. The syntax is: - <programlisting> +<programlisting> DELETE FROM <replaceable class="parameter">table_name</replaceable> WHERE <replaceable class="parameter">condition</replaceable>; - </programlisting> +</programlisting> </para> <para> To delete the supplier called 'Smith' of the table SUPPLIER the following statement is used: - <programlisting> +<programlisting> DELETE FROM SUPPLIER WHERE SNAME = 'Smith'; - </programlisting> +</programlisting> </para> </sect3> </sect2> diff --git a/doc/src/sgml/sslinfo.sgml b/doc/src/sgml/sslinfo.sgml index c89abde848f455372e09987cfb45f040d822a8fa..d56e66e3eee0296cdbd97c7b88d8be65ef73acdc 100644 --- a/doc/src/sgml/sslinfo.sgml +++ b/doc/src/sgml/sslinfo.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/sslinfo.sgml,v 1.4 2010/07/27 23:43:42 rhaas Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/sslinfo.sgml,v 1.5 2010/07/29 19:34:40 petere Exp $ --> <sect1 id="sslinfo"> <title>sslinfo</title> @@ -147,7 +147,7 @@ ssl_client_dn_field(fieldname text) returns text converted into ASN1 object identifiers using the OpenSSL object database. The following values are acceptable: </para> - <programlisting> +<literallayout class="monospaced"> commonName (alias CN) surname (alias SN) name @@ -169,7 +169,7 @@ x500UniqueIdentifier pseudonym role emailAddress - </programlisting> +</literallayout> <para> All of these fields are optional, except <structfield>commonName</>. It depends diff --git a/doc/src/sgml/stylesheet.css b/doc/src/sgml/stylesheet.css index 84fc847c4f77484529c541f6d4621f7267973af8..fd8e2ad65998b1ebfcae6a7184ed04548a1b1aa5 100644 --- a/doc/src/sgml/stylesheet.css +++ b/doc/src/sgml/stylesheet.css @@ -1,4 +1,4 @@ -/* $PostgreSQL: pgsql/doc/src/sgml/stylesheet.css,v 1.9 2009/08/26 21:18:29 petere Exp $ */ +/* $PostgreSQL: pgsql/doc/src/sgml/stylesheet.css,v 1.10 2010/07/29 19:34:40 petere Exp $ */ /* color scheme similar to www.postgresql.org */ @@ -85,7 +85,7 @@ DIV.EXAMPLE { /* miscellaneous */ -.SCREEN, .SYNOPSIS, .PROGRAMLISTING { +PRE.LITERALLAYOUT, .SCREEN, .SYNOPSIS, .PROGRAMLISTING { margin-left: 4ex; } diff --git a/doc/src/sgml/tablefunc.sgml b/doc/src/sgml/tablefunc.sgml index d71890fcaa831c447c77b6d7959cac44c7064046..be41e8384053148a8d140323ac1abd3d92809245 100644 --- a/doc/src/sgml/tablefunc.sgml +++ b/doc/src/sgml/tablefunc.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/tablefunc.sgml,v 1.4 2007/12/06 04:12:10 tgl Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/tablefunc.sgml,v 1.5 2010/07/29 19:34:40 petere Exp $ --> <sect1 id="tablefunc"> <title>tablefunc</title> @@ -94,9 +94,9 @@ <sect3> <title><function>normal_rand</function></title> - <programlisting> +<synopsis> normal_rand(int numvals, float8 mean, float8 stddev) returns setof float8 - </programlisting> +</synopsis> <para> <function>normal_rand</> produces a set of normally distributed random @@ -115,7 +115,7 @@ normal_rand(int numvals, float8 mean, float8 stddev) returns setof float8 standard deviation of 3: </para> - <programlisting> +<screen> test=# SELECT * FROM normal_rand(1000, 5, 3); normal_rand ---------------------- @@ -131,22 +131,22 @@ test=# SELECT * FROM normal_rand(1000, 5, 3); 9.71308014517282 2.49639286969028 (1000 rows) - </programlisting> +</screen> </sect3> <sect3> <title><function>crosstab(text)</function></title> - <programlisting> +<synopsis> crosstab(text sql) crosstab(text sql, int N) - </programlisting> +</synopsis> <para> The <function>crosstab</> function is used to produce <quote>pivot</> displays, wherein data is listed across the page rather than down. For example, we might have data like - <programlisting> +<programlisting> row1 val11 row1 val12 row1 val13 @@ -155,13 +155,13 @@ row2 val21 row2 val22 row2 val23 ... - </programlisting> +</programlisting> which we wish to display like - <programlisting> +<programlisting> row1 val11 val12 val13 ... row2 val21 val22 val23 ... ... - </programlisting> +</programlisting> The <function>crosstab</> function takes a text parameter that is a SQL query producing raw data formatted in the first way, and produces a table formatted in the second way. @@ -180,8 +180,6 @@ row2 val21 val22 val23 ... <para> For example, the provided query might produce a set something like: - </para> - <programlisting> row_name cat value ----------+-------+------- @@ -194,29 +192,25 @@ row2 val21 val22 val23 ... row2 cat3 val7 row2 cat4 val8 </programlisting> + </para> <para> The <function>crosstab</> function is declared to return <type>setof record</type>, so the actual names and types of the output columns must be defined in the <literal>FROM</> clause of the calling <command>SELECT</> statement, for example: - </para> - - <programlisting> - SELECT * FROM crosstab('...') AS ct(row_name text, category_1 text, category_2 text); - </programlisting> - - <para> +<programlisting> +SELECT * FROM crosstab('...') AS ct(row_name text, category_1 text, category_2 text); +</programlisting> This example produces a set something like: - </para> - - <programlisting> +<programlisting> <== value columns ==> -row_name category_1 category_2 - ---------+------------+------------ - row1 val1 val2 - row2 val5 val6 - </programlisting> + row_name category_1 category_2 +----------+------------+------------ + row1 val1 val2 + row2 val5 val6 +</programlisting> + </para> <para> The <literal>FROM</> clause must define the output as one @@ -250,9 +244,7 @@ row_name category_1 category_2 <para> Here is a complete example: - </para> - - <programlisting> +<programlisting> CREATE TABLE ct(id SERIAL, rowid TEXT, attribute TEXT, value TEXT); INSERT INTO ct(rowid, attribute, value) VALUES('test1','att1','val1'); INSERT INTO ct(rowid, attribute, value) VALUES('test1','att2','val2'); @@ -276,7 +268,8 @@ AS ct(row_name text, category_1 text, category_2 text, category_3 text); test1 | val2 | val3 | test2 | val6 | val7 | (2 rows) - </programlisting> +</programlisting> + </para> <para> You can avoid always having to write out a <literal>FROM</> clause to @@ -291,9 +284,9 @@ AS ct(row_name text, category_1 text, category_2 text, category_3 text); <sect3> <title><function>crosstab<replaceable>N</>(text)</function></title> - <programlisting> +<synopsis> crosstab<replaceable>N</>(text sql) - </programlisting> +</synopsis> <para> The <function>crosstab<replaceable>N</></> functions are examples of how @@ -304,7 +297,7 @@ crosstab<replaceable>N</>(text sql) <function>crosstab4</>, whose output rowtypes are defined as </para> - <programlisting> +<programlisting> CREATE TYPE tablefunc_crosstab_N AS ( row_name TEXT, category_1 TEXT, @@ -314,7 +307,7 @@ CREATE TYPE tablefunc_crosstab_N AS ( . category_N TEXT ); - </programlisting> +</programlisting> <para> Thus, these functions can be used directly when the input query produces @@ -327,23 +320,21 @@ CREATE TYPE tablefunc_crosstab_N AS ( <para> For instance, the example given in the previous section would also work as - </para> - - <programlisting> +<programlisting> SELECT * FROM crosstab3( 'select rowid, attribute, value from ct where attribute = ''att2'' or attribute = ''att3'' order by 1,2'); - </programlisting> +</programlisting> + </para> <para> These functions are provided mostly for illustration purposes. You can create your own return types and functions based on the underlying <function>crosstab()</> function. There are two ways to do it: - </para> <itemizedlist> <listitem> @@ -355,52 +346,52 @@ FROM crosstab3( <function>crosstab</> C function. For example, if your source data produces row names that are <type>text</>, and values that are <type>float8</>, and you want 5 value columns: - </para> +<programlisting> +CREATE TYPE my_crosstab_float8_5_cols AS ( + my_row_name text, + my_category_1 float8, + my_category_2 float8, + my_category_3 float8, + my_category_4 float8, + my_category_5 float8 +); - <programlisting> - CREATE TYPE my_crosstab_float8_5_cols AS ( - my_row_name text, - my_category_1 float8, - my_category_2 float8, - my_category_3 float8, - my_category_4 float8, - my_category_5 float8 - ); - - CREATE OR REPLACE FUNCTION crosstab_float8_5_cols(text) - RETURNS setof my_crosstab_float8_5_cols - AS '$libdir/tablefunc','crosstab' LANGUAGE C STABLE STRICT; - </programlisting> +CREATE OR REPLACE FUNCTION crosstab_float8_5_cols(text) + RETURNS setof my_crosstab_float8_5_cols + AS '$libdir/tablefunc','crosstab' LANGUAGE C STABLE STRICT; +</programlisting> + </para> </listitem> <listitem> <para> Use <literal>OUT</> parameters to define the return type implicitly. The same example could also be done this way: +<programlisting> +CREATE OR REPLACE FUNCTION crosstab_float8_5_cols( + IN text, + OUT my_row_name text, + OUT my_category_1 float8, + OUT my_category_2 float8, + OUT my_category_3 float8, + OUT my_category_4 float8, + OUT my_category_5 float8) + RETURNS setof record + AS '$libdir/tablefunc','crosstab' LANGUAGE C STABLE STRICT; +</programlisting> </para> - - <programlisting> - CREATE OR REPLACE FUNCTION crosstab_float8_5_cols(IN text, - OUT my_row_name text, - OUT my_category_1 float8, - OUT my_category_2 float8, - OUT my_category_3 float8, - OUT my_category_4 float8, - OUT my_category_5 float8) - RETURNS setof record - AS '$libdir/tablefunc','crosstab' LANGUAGE C STABLE STRICT; - </programlisting> </listitem> </itemizedlist> + </para> </sect3> <sect3> <title><function>crosstab(text, text)</function></title> - <programlisting> +<synopsis> crosstab(text source_sql, text category_sql) - </programlisting> +</synopsis> <para> The main limitation of the single-parameter form of <function>crosstab</> @@ -432,8 +423,7 @@ crosstab(text source_sql, text category_sql) <para> For example, <parameter>source_sql</parameter> might produce a set something like: - </para> - <programlisting> +<programlisting> SELECT row_name, extra_col, cat, value FROM foo ORDER BY 1; row_name extra_col cat value @@ -445,7 +435,8 @@ crosstab(text source_sql, text category_sql) row2 extra2 cat2 val6 row2 extra2 cat3 val7 row2 extra2 cat4 val8 - </programlisting> +</programlisting> + </para> <para> <parameter>category_sql</parameter> is a SQL statement that produces @@ -453,9 +444,8 @@ crosstab(text source_sql, text category_sql) It must produce at least one row, or an error will be generated. Also, it must not produce duplicate values, or an error will be generated. <parameter>category_sql</parameter> might be something like: - </para> - <programlisting> +<programlisting> SELECT DISTINCT cat FROM foo ORDER BY 1; cat ------- @@ -463,32 +453,32 @@ SELECT DISTINCT cat FROM foo ORDER BY 1; cat2 cat3 cat4 - </programlisting> +</programlisting> + </para> <para> The <function>crosstab</> function is declared to return <type>setof record</type>, so the actual names and types of the output columns must be defined in the <literal>FROM</> clause of the calling <command>SELECT</> statement, for example: - </para> - <programlisting> - SELECT * FROM crosstab('...', '...') - AS ct(row_name text, extra text, cat1 text, cat2 text, cat3 text, cat4 text); - </programlisting> +<programlisting> +SELECT * FROM crosstab('...', '...') + AS ct(row_name text, extra text, cat1 text, cat2 text, cat3 text, cat4 text); +</programlisting> + </para> <para> This will produce a result something like: +<programlisting> + <== value columns ==> +row_name extra cat1 cat2 cat3 cat4 +---------+-------+------+------+------+------ + row1 extra1 val1 val2 val4 + row2 extra2 val5 val6 val7 val8 +</programlisting> </para> - <programlisting> - <== value columns ==> - row_name extra cat1 cat2 cat3 cat4 - ---------+-------+------+------+------+------ - row1 extra1 val1 val2 val4 - row2 extra2 val5 val6 val7 val8 - </programlisting> - <para> The <literal>FROM</> clause must define the proper number of output columns of the proper data types. If there are <replaceable>N</> @@ -527,9 +517,7 @@ SELECT DISTINCT cat FROM foo ORDER BY 1; <para> Here are two complete examples: - </para> - - <programlisting> +<programlisting> create table sales(year int, month int, qty int); insert into sales values(2007, 1, 1000); insert into sales values(2007, 2, 1500); @@ -561,9 +549,9 @@ select * from crosstab( 2007 | 1000 | 1500 | | | | | 500 | | | | 1500 | 2000 2008 | 1000 | | | | | | | | | | | (2 rows) - </programlisting> +</programlisting> - <programlisting> +<programlisting> CREATE TABLE cth(rowid text, rowdt timestamp, attribute text, val text); INSERT INTO cth VALUES('test1','01 March 2003','temperature','42'); INSERT INTO cth VALUES('test1','01 March 2003','test_result','PASS'); @@ -592,7 +580,8 @@ AS test1 | Sat Mar 01 00:00:00 2003 | 42 | PASS | | 2.6987 test2 | Sun Mar 02 00:00:00 2003 | 53 | FAIL | Sat Mar 01 00:00:00 2003 | 3.1234 (2 rows) - </programlisting> +</programlisting> + </para> <para> You can create predefined functions to avoid having to write out @@ -606,11 +595,11 @@ AS <sect3> <title><function>connectby</function></title> - <programlisting> +<synopsis> connectby(text relname, text keyid_fld, text parent_keyid_fld [, text orderby_fld ], text start_with, int max_depth [, text branch_delim ]) - </programlisting> +</synopsis> <para> The <function>connectby</> function produces a display of hierarchical @@ -675,10 +664,10 @@ connectby(text relname, text keyid_fld, text parent_keyid_fld statement, for example: </para> - <programlisting> - SELECT * FROM connectby('connectby_tree', 'keyid', 'parent_keyid', 'pos', 'row2', 0, '~') - AS t(keyid text, parent_keyid text, level int, branch text, pos int); - </programlisting> +<programlisting> +SELECT * FROM connectby('connectby_tree', 'keyid', 'parent_keyid', 'pos', 'row2', 0, '~') + AS t(keyid text, parent_keyid text, level int, branch text, pos int); +</programlisting> <para> The first two output columns are used for the current row's key and @@ -731,9 +720,7 @@ connectby(text relname, text keyid_fld, text parent_keyid_fld <para> Here is an example: - </para> - - <programlisting> +<programlisting> CREATE TABLE connectby_tree(keyid text, parent_keyid text, pos int); INSERT INTO connectby_tree VALUES('row1',NULL, 0); @@ -797,7 +784,8 @@ SELECT * FROM connectby('connectby_tree', 'keyid', 'parent_keyid', 'pos', 'row2' row6 | row4 | 2 | 5 row8 | row6 | 3 | 6 (6 rows) - </programlisting> +</programlisting> + </para> </sect3> </sect2> diff --git a/doc/src/sgml/textsearch.sgml b/doc/src/sgml/textsearch.sgml index fd4dd1d14527b8e1700c8932afee6cca2f580c1e..7dd4a02378d4ceaad7c0e8bb241f86fceadd6c52 100644 --- a/doc/src/sgml/textsearch.sgml +++ b/doc/src/sgml/textsearch.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/textsearch.sgml,v 1.56 2010/04/03 07:22:56 petere Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/textsearch.sgml,v 1.57 2010/07/29 19:34:40 petere Exp $ --> <chapter id="textsearch"> <title>Full Text Search</title> @@ -613,9 +613,9 @@ LIMIT 10; <primary>to_tsvector</primary> </indexterm> - <synopsis> - to_tsvector(<optional> <replaceable class="PARAMETER">config</replaceable> <type>regconfig</>, </optional> <replaceable class="PARAMETER">document</replaceable> <type>text</>) returns <type>tsvector</> - </synopsis> +<synopsis> +to_tsvector(<optional> <replaceable class="PARAMETER">config</replaceable> <type>regconfig</>, </optional> <replaceable class="PARAMETER">document</replaceable> <type>text</>) returns <type>tsvector</> +</synopsis> <para> <function>to_tsvector</function> parses a textual document into tokens, @@ -625,12 +625,12 @@ LIMIT 10; text search configuration. Here is a simple example: -<programlisting> +<screen> SELECT to_tsvector('english', 'a fat cat sat on a mat - it ate a fat rats'); to_tsvector ----------------------------------------------------- 'ate':9 'cat':3 'fat':2,11 'mat':7 'rat':12 'sat':4 -</programlisting> +</screen> </para> <para> @@ -720,9 +720,9 @@ UPDATE tt SET ti = <primary>to_tsquery</primary> </indexterm> - <synopsis> - to_tsquery(<optional> <replaceable class="PARAMETER">config</replaceable> <type>regconfig</>, </optional> <replaceable class="PARAMETER">querytext</replaceable> <type>text</>) returns <type>tsquery</> - </synopsis> +<synopsis> +to_tsquery(<optional> <replaceable class="PARAMETER">config</replaceable> <type>regconfig</>, </optional> <replaceable class="PARAMETER">querytext</replaceable> <type>text</>) returns <type>tsquery</> +</synopsis> <para> <function>to_tsquery</function> creates a <type>tsquery</> value from @@ -738,32 +738,32 @@ UPDATE tt SET ti = the specified or default configuration, and discards any tokens that are stop words according to the configuration. For example: -<programlisting> +<screen> SELECT to_tsquery('english', 'The & Fat & Rats'); to_tsquery --------------- 'fat' & 'rat' -</programlisting> +</screen> As in basic <type>tsquery</> input, weight(s) can be attached to each lexeme to restrict it to match only <type>tsvector</> lexemes of those weight(s). For example: -<programlisting> +<screen> SELECT to_tsquery('english', 'Fat | Rats:AB'); to_tsquery ------------------ 'fat' | 'rat':AB -</programlisting> +</screen> Also, <literal>*</> can be attached to a lexeme to specify prefix matching: -<programlisting> +<screen> SELECT to_tsquery('supern:*A & star:A*B'); to_tsquery -------------------------- 'supern':*A & 'star':*AB -</programlisting> +</screen> Such a lexeme will match any word in a <type>tsvector</> that begins with the given string. @@ -776,12 +776,12 @@ SELECT to_tsquery('supern:*A & star:A*B'); In the example below, a thesaurus contains the rule <literal>supernovae stars : sn</literal>: -<programlisting> +<screen> SELECT to_tsquery('''supernovae stars'' & !crab'); to_tsquery --------------- 'sn' & !'crab' -</programlisting> +</screen> Without quotes, <function>to_tsquery</function> will generate a syntax error for tokens that are not separated by an AND or OR operator. @@ -791,9 +791,9 @@ SELECT to_tsquery('''supernovae stars'' & !crab'); <primary>plainto_tsquery</primary> </indexterm> - <synopsis> - plainto_tsquery(<optional> <replaceable class="PARAMETER">config</replaceable> <type>regconfig</>, </optional> <replaceable class="PARAMETER">querytext</replaceable> <type>text</>) returns <type>tsquery</> - </synopsis> +<synopsis> +plainto_tsquery(<optional> <replaceable class="PARAMETER">config</replaceable> <type>regconfig</>, </optional> <replaceable class="PARAMETER">querytext</replaceable> <type>text</>) returns <type>tsquery</> +</synopsis> <para> <function>plainto_tsquery</> transforms unformatted text @@ -806,23 +806,23 @@ SELECT to_tsquery('''supernovae stars'' & !crab'); <para> Example: -<programlisting> - SELECT plainto_tsquery('english', 'The Fat Rats'); +<screen> +SELECT plainto_tsquery('english', 'The Fat Rats'); plainto_tsquery ----------------- 'fat' & 'rat' -</programlisting> +</screen> Note that <function>plainto_tsquery</> cannot recognize Boolean operators, weight labels, or prefix-match labels in its input: -<programlisting> +<screen> SELECT plainto_tsquery('english', 'The Fat & Rats:C'); plainto_tsquery --------------------- 'fat' & 'rat' & 'c' -</programlisting> +</screen> Here, all the input punctuation was discarded as being space symbols. </para> @@ -859,10 +859,10 @@ SELECT plainto_tsquery('english', 'The Fat & Rats:C'); </indexterm> <term> - <synopsis> - ts_rank(<optional> <replaceable class="PARAMETER">weights</replaceable> <type>float4[]</>, </optional> <replaceable class="PARAMETER">vector</replaceable> <type>tsvector</>, - <replaceable class="PARAMETER">query</replaceable> <type>tsquery</> <optional>, <replaceable class="PARAMETER">normalization</replaceable> <type>integer</> </optional>) returns <type>float4</> - </synopsis> +<synopsis> +ts_rank(<optional> <replaceable class="PARAMETER">weights</replaceable> <type>float4[]</>, </optional> <replaceable class="PARAMETER">vector</replaceable> <type>tsvector</>, + <replaceable class="PARAMETER">query</replaceable> <type>tsquery</> <optional>, <replaceable class="PARAMETER">normalization</replaceable> <type>integer</> </optional>) returns <type>float4</> +</synopsis> </term> <listitem> @@ -879,10 +879,10 @@ SELECT plainto_tsquery('english', 'The Fat & Rats:C'); </indexterm> <term> - <synopsis> - ts_rank_cd(<optional> <replaceable class="PARAMETER">weights</replaceable> <type>float4[]</>, </optional> <replaceable class="PARAMETER">vector</replaceable> <type>tsvector</>, - <replaceable class="PARAMETER">query</replaceable> <type>tsquery</> <optional>, <replaceable class="PARAMETER">normalization</replaceable> <type>integer</> </optional>) returns <type>float4</> - </synopsis> +<synopsis> +ts_rank_cd(<optional> <replaceable class="PARAMETER">weights</replaceable> <type>float4[]</>, </optional> <replaceable class="PARAMETER">vector</replaceable> <type>tsvector</>, + <replaceable class="PARAMETER">query</replaceable> <type>tsquery</> <optional>, <replaceable class="PARAMETER">normalization</replaceable> <type>integer</> </optional>) returns <type>float4</> +</synopsis> </term> <listitem> @@ -913,9 +913,9 @@ SELECT plainto_tsquery('english', 'The Fat & Rats:C'); heavily depending on how they are labeled. The weight arrays specify how heavily to weigh each category of word, in the order: -<programlisting> +<synopsis> {D-weight, C-weight, B-weight, A-weight} -</programlisting> +</synopsis> If no <replaceable class="PARAMETER">weights</replaceable> are provided, then these defaults are used: @@ -996,7 +996,7 @@ SELECT plainto_tsquery('english', 'The Fat & Rats:C'); <para> Here is an example that selects only the ten highest-ranked matches: -<programlisting> +<screen> SELECT title, ts_rank_cd(textsearch, query) AS rank FROM apod, to_tsquery('neutrino|(dark & matter)') query WHERE query @@ textsearch @@ -1014,11 +1014,11 @@ LIMIT 10; Hot Gas and Dark Matter | 1.6123 Ice Fishing for Cosmic Neutrinos | 1.6 Weak Lensing Distorts the Universe | 0.818218 -</programlisting> +</screen> This is the same example using normalized ranking: -<programlisting> +<screen> SELECT title, ts_rank_cd(textsearch, query, 32 /* rank/(rank+1) */ ) AS rank FROM apod, to_tsquery('neutrino|(dark & matter)') query WHERE query @@ textsearch @@ -1036,7 +1036,7 @@ LIMIT 10; Hot Gas and Dark Matter | 0.617195790024749 Ice Fishing for Cosmic Neutrinos | 0.615384618911517 Weak Lensing Distorts the Universe | 0.450010798361481 -</programlisting> +</screen> </para> <para> @@ -1063,9 +1063,9 @@ LIMIT 10; <primary>ts_headline</primary> </indexterm> - <synopsis> - ts_headline(<optional> <replaceable class="PARAMETER">config</replaceable> <type>regconfig</>, </optional> <replaceable class="PARAMETER">document</replaceable> <type>text</>, <replaceable class="PARAMETER">query</replaceable> <type>tsquery</> <optional>, <replaceable class="PARAMETER">options</replaceable> <type>text</> </optional>) returns <type>text</> - </synopsis> +<synopsis> +ts_headline(<optional> <replaceable class="PARAMETER">config</replaceable> <type>regconfig</>, </optional> <replaceable class="PARAMETER">document</replaceable> <type>text</>, <replaceable class="PARAMETER">query</replaceable> <type>tsquery</> <optional>, <replaceable class="PARAMETER">options</replaceable> <type>text</> </optional>) returns <type>text</> +</synopsis> <para> <function>ts_headline</function> accepts a document along @@ -1148,7 +1148,7 @@ MaxFragments=0, FragmentDelimiter=" ... " <para> For example: -<programlisting> +<screen> SELECT ts_headline('english', 'The most common type of search is to find all documents containing given query terms @@ -1173,7 +1173,7 @@ query.', containing given <query> terms and return them in order of their <similarity> to the <query>. -</programlisting> +</screen> </para> <para> @@ -1226,9 +1226,9 @@ FROM (SELECT id, body, q, ts_rank_cd(ti, q) AS rank </indexterm> <term> - <synopsis> - <type>tsvector</> || <type>tsvector</> - </synopsis> +<synopsis> +<type>tsvector</> || <type>tsvector</> +</synopsis> </term> <listitem> @@ -1267,9 +1267,9 @@ FROM (SELECT id, body, q, ts_rank_cd(ti, q) AS rank </indexterm> <term> - <synopsis> - setweight(<replaceable class="PARAMETER">vector</replaceable> <type>tsvector</>, <replaceable class="PARAMETER">weight</replaceable> <type>"char"</>) returns <type>tsvector</> - </synopsis> +<synopsis> +setweight(<replaceable class="PARAMETER">vector</replaceable> <type>tsvector</>, <replaceable class="PARAMETER">weight</replaceable> <type>"char"</>) returns <type>tsvector</> +</synopsis> </term> <listitem> @@ -1297,9 +1297,9 @@ FROM (SELECT id, body, q, ts_rank_cd(ti, q) AS rank </indexterm> <term> - <synopsis> - length(<replaceable class="PARAMETER">vector</replaceable> <type>tsvector</>) returns <type>integer</> - </synopsis> +<synopsis> +length(<replaceable class="PARAMETER">vector</replaceable> <type>tsvector</>) returns <type>integer</> +</synopsis> </term> <listitem> @@ -1316,9 +1316,9 @@ FROM (SELECT id, body, q, ts_rank_cd(ti, q) AS rank </indexterm> <term> - <synopsis> - strip(<replaceable class="PARAMETER">vector</replaceable> <type>tsvector</>) returns <type>tsvector</> - </synopsis> +<synopsis> +strip(<replaceable class="PARAMETER">vector</replaceable> <type>tsvector</>) returns <type>tsvector</> +</synopsis> </term> <listitem> @@ -1352,9 +1352,9 @@ FROM (SELECT id, body, q, ts_rank_cd(ti, q) AS rank <varlistentry> <term> - <synopsis> - <type>tsquery</> && <type>tsquery</> - </synopsis> +<synopsis> +<type>tsquery</> && <type>tsquery</> +</synopsis> </term> <listitem> @@ -1368,9 +1368,9 @@ FROM (SELECT id, body, q, ts_rank_cd(ti, q) AS rank <varlistentry> <term> - <synopsis> - <type>tsquery</> || <type>tsquery</> - </synopsis> +<synopsis> +<type>tsquery</> || <type>tsquery</> +</synopsis> </term> <listitem> @@ -1384,9 +1384,9 @@ FROM (SELECT id, body, q, ts_rank_cd(ti, q) AS rank <varlistentry> <term> - <synopsis> - !! <type>tsquery</> - </synopsis> +<synopsis> +!! <type>tsquery</> +</synopsis> </term> <listitem> @@ -1404,9 +1404,9 @@ FROM (SELECT id, body, q, ts_rank_cd(ti, q) AS rank </indexterm> <term> - <synopsis> - numnode(<replaceable class="PARAMETER">query</replaceable> <type>tsquery</>) returns <type>integer</> - </synopsis> +<synopsis> +numnode(<replaceable class="PARAMETER">query</replaceable> <type>tsquery</>) returns <type>integer</> +</synopsis> </term> <listitem> @@ -1417,7 +1417,7 @@ FROM (SELECT id, body, q, ts_rank_cd(ti, q) AS rank (returns > 0), or contains only stop words (returns 0). Examples: -<programlisting> +<screen> SELECT numnode(plainto_tsquery('the any')); NOTICE: query contains only stopword(s) or doesn't contain lexeme(s), ignored numnode @@ -1428,7 +1428,7 @@ SELECT numnode('foo & bar'::tsquery); numnode --------- 3 -</programlisting> +</screen> </para> </listitem> </varlistentry> @@ -1440,9 +1440,9 @@ SELECT numnode('foo & bar'::tsquery); </indexterm> <term> - <synopsis> - querytree(<replaceable class="PARAMETER">query</replaceable> <type>tsquery</>) returns <type>text</> - </synopsis> +<synopsis> +querytree(<replaceable class="PARAMETER">query</replaceable> <type>tsquery</>) returns <type>text</> +</synopsis> </term> <listitem> @@ -1452,12 +1452,12 @@ SELECT numnode('foo & bar'::tsquery); unindexable queries, for example those containing only stop words or only negated terms. For example: -<programlisting> +<screen> SELECT querytree(to_tsquery('!defined')); querytree ----------- -</programlisting> +</screen> </para> </listitem> </varlistentry> @@ -1495,9 +1495,9 @@ SELECT querytree(to_tsquery('!defined')); <varlistentry> <term> - <synopsis> - ts_rewrite (<replaceable class="PARAMETER">query</replaceable> <type>tsquery</>, <replaceable class="PARAMETER">target</replaceable> <type>tsquery</>, <replaceable class="PARAMETER">substitute</replaceable> <type>tsquery</>) returns <type>tsquery</> - </synopsis> +<synopsis> +ts_rewrite (<replaceable class="PARAMETER">query</replaceable> <type>tsquery</>, <replaceable class="PARAMETER">target</replaceable> <type>tsquery</>, <replaceable class="PARAMETER">substitute</replaceable> <type>tsquery</>) returns <type>tsquery</> +</synopsis> </term> <listitem> @@ -1508,12 +1508,12 @@ SELECT querytree(to_tsquery('!defined')); wherever it appears in <replaceable class="PARAMETER">query</replaceable>. For example: -<programlisting> +<screen> SELECT ts_rewrite('a & b'::tsquery, 'a'::tsquery, 'c'::tsquery); ts_rewrite ------------ 'b' & 'c' -</programlisting> +</screen> </para> </listitem> </varlistentry> @@ -1521,9 +1521,9 @@ SELECT ts_rewrite('a & b'::tsquery, 'a'::tsquery, 'c'::tsquery); <varlistentry> <term> - <synopsis> - ts_rewrite (<replaceable class="PARAMETER">query</> <type>tsquery</>, <replaceable class="PARAMETER">select</> <type>text</>) returns <type>tsquery</> - </synopsis> +<synopsis> +ts_rewrite (<replaceable class="PARAMETER">query</> <type>tsquery</>, <replaceable class="PARAMETER">select</> <type>text</>) returns <type>tsquery</> +</synopsis> </term> <listitem> @@ -1536,7 +1536,7 @@ SELECT ts_rewrite('a & b'::tsquery, 'a'::tsquery, 'c'::tsquery); (the target) are replaced by the second column value (the substitute) within the current <replaceable>query</> value. For example: -<programlisting> +<screen> CREATE TABLE aliases (t tsquery PRIMARY KEY, s tsquery); INSERT INTO aliases VALUES('a', 'c'); @@ -1544,7 +1544,7 @@ SELECT ts_rewrite('a & b'::tsquery, 'SELECT t,s FROM aliases'); ts_rewrite ------------ 'b' & 'c' -</programlisting> +</screen> </para> <para> @@ -1561,7 +1561,7 @@ SELECT ts_rewrite('a & b'::tsquery, 'SELECT t,s FROM aliases'); Let's consider a real-life astronomical example. We'll expand query <literal>supernovae</literal> using table-driven rewriting rules: -<programlisting> +<screen> CREATE TABLE aliases (t tsquery primary key, s tsquery); INSERT INTO aliases VALUES(to_tsquery('supernovae'), to_tsquery('supernovae|sn')); @@ -1569,11 +1569,11 @@ SELECT ts_rewrite(to_tsquery('supernovae & crab'), 'SELECT * FROM aliases'); ts_rewrite --------------------------------- 'crab' & ( 'supernova' | 'sn' ) -</programlisting> +</screen> We can change the rewriting rules just by updating the table: -<programlisting> +<screen> UPDATE aliases SET s = to_tsquery('supernovae|sn & !nebulae') WHERE t = to_tsquery('supernovae'); @@ -1582,7 +1582,7 @@ SELECT ts_rewrite(to_tsquery('supernovae & crab'), 'SELECT * FROM aliases'); ts_rewrite --------------------------------------------- 'crab' & ( 'supernova' | 'sn' & !'nebula' ) -</programlisting> +</screen> </para> <para> @@ -1592,13 +1592,13 @@ SELECT ts_rewrite(to_tsquery('supernovae & crab'), 'SELECT * FROM aliases'); type. In the example below, we select only those rules which might match the original query: -<programlisting> +<screen> SELECT ts_rewrite('a & b'::tsquery, 'SELECT t,s FROM aliases WHERE ''a & b''::tsquery @> t'); ts_rewrite ------------ 'b' & 'c' -</programlisting> +</screen> </para> </sect3> @@ -1621,10 +1621,10 @@ SELECT ts_rewrite('a & b'::tsquery, your own. </para> - <synopsis> - tsvector_update_trigger(<replaceable class="PARAMETER">tsvector_column_name</replaceable>, <replaceable class="PARAMETER">config_name</replaceable>, <replaceable class="PARAMETER">text_column_name</replaceable> <optional>, ... </optional>) - tsvector_update_trigger_column(<replaceable class="PARAMETER">tsvector_column_name</replaceable>, <replaceable class="PARAMETER">config_column_name</replaceable>, <replaceable class="PARAMETER">text_column_name</replaceable> <optional>, ... </optional>) - </synopsis> +<synopsis> +tsvector_update_trigger(<replaceable class="PARAMETER">tsvector_column_name</replaceable>, <replaceable class="PARAMETER">config_name</replaceable>, <replaceable class="PARAMETER">text_column_name</replaceable> <optional>, ... </optional>) +tsvector_update_trigger_column(<replaceable class="PARAMETER">tsvector_column_name</replaceable>, <replaceable class="PARAMETER">config_column_name</replaceable>, <replaceable class="PARAMETER">text_column_name</replaceable> <optional>, ... </optional>) +</synopsis> <para> These trigger functions automatically compute a <type>tsvector</> @@ -1632,7 +1632,7 @@ SELECT ts_rewrite('a & b'::tsquery, parameters specified in the <command>CREATE TRIGGER</> command. An example of their use is: -<programlisting> +<screen> CREATE TABLE messages ( title text, body text, @@ -1654,7 +1654,7 @@ SELECT title, body FROM messages WHERE tsv @@ to_tsquery('title & body'); title | body ------------+----------------------- title here | the body text is here -</programlisting> +</screen> Having created this trigger, any change in <structfield>title</> or <structfield>body</> will automatically be reflected into @@ -1696,7 +1696,7 @@ end $$ LANGUAGE plpgsql; CREATE TRIGGER tsvectorupdate BEFORE INSERT OR UPDATE -ON messages FOR EACH ROW EXECUTE PROCEDURE messages_trigger(); + ON messages FOR EACH ROW EXECUTE PROCEDURE messages_trigger(); </programlisting> </para> @@ -1722,11 +1722,11 @@ ON messages FOR EACH ROW EXECUTE PROCEDURE messages_trigger(); configuration and for finding stop-word candidates. </para> - <synopsis> - ts_stat(<replaceable class="PARAMETER">sqlquery</replaceable> <type>text</>, <optional> <replaceable class="PARAMETER">weights</replaceable> <type>text</>, </optional> - OUT <replaceable class="PARAMETER">word</replaceable> <type>text</>, OUT <replaceable class="PARAMETER">ndoc</replaceable> <type>integer</>, - OUT <replaceable class="PARAMETER">nentry</replaceable> <type>integer</>) returns <type>setof record</> - </synopsis> +<synopsis> +ts_stat(<replaceable class="PARAMETER">sqlquery</replaceable> <type>text</>, <optional> <replaceable class="PARAMETER">weights</replaceable> <type>text</>, </optional> + OUT <replaceable class="PARAMETER">word</replaceable> <type>text</>, OUT <replaceable class="PARAMETER">ndoc</replaceable> <type>integer</>, + OUT <replaceable class="PARAMETER">nentry</replaceable> <type>integer</>) returns <type>setof record</> +</synopsis> <para> <replaceable>sqlquery</replaceable> is a text value containing an SQL @@ -1957,7 +1957,7 @@ LIMIT 10; piece of text. As an example, a hyphenated word will be reported both as the entire word and as each component: -<programlisting> +<screen> SELECT alias, description, token FROM ts_debug('foo-bar-beta1'); alias | description | token -----------------+------------------------------------------+--------------- @@ -1967,13 +1967,13 @@ SELECT alias, description, token FROM ts_debug('foo-bar-beta1'); hword_asciipart | Hyphenated word part, all ASCII | bar blank | Space symbols | - hword_numpart | Hyphenated word part, letters and digits | beta1 -</programlisting> +</screen> This behavior is desirable since it allows searches to work for both the whole compound word and for components. Here is another instructive example: -<programlisting> +<screen> SELECT alias, description, token FROM ts_debug('http://example.com/stuff/index.html'); alias | description | token ----------+---------------+------------------------------ @@ -1981,7 +1981,7 @@ SELECT alias, description, token FROM ts_debug('http://example.com/stuff/index.h url | URL | example.com/stuff/index.html host | Host | example.com url_path | URL path | /stuff/index.html -</programlisting> +</screen> </para> </sect1> @@ -2123,17 +2123,17 @@ ALTER TEXT SEARCH CONFIGURATION astro_en useless to store them in an index. However, stop words do affect the positions in <type>tsvector</type>, which in turn affect ranking: -<programlisting> +<screen> SELECT to_tsvector('english','in the list of stop words'); to_tsvector ---------------------------- 'list':3 'stop':5 'word':6 -</programlisting> +</screen> The missing positions 1,2,4 are because of stop words. Ranks calculated for documents with and without stop words are quite different: -<programlisting> +<screen> SELECT ts_rank_cd (to_tsvector('english','in the list of stop words'), to_tsquery('list & stop')); ts_rank_cd ------------ @@ -2143,7 +2143,7 @@ SELECT ts_rank_cd (to_tsvector('english','list stop words'), to_tsquery('list &a ts_rank_cd ------------ 0.1 -</programlisting> +</screen> </para> @@ -2197,7 +2197,7 @@ CREATE TEXT SEARCH DICTIONARY public.simple_dict ( <para> Now we can test our dictionary: -<programlisting> +<screen> SELECT ts_lexize('public.simple_dict','YeS'); ts_lexize ----------- @@ -2207,7 +2207,7 @@ SELECT ts_lexize('public.simple_dict','The'); ts_lexize ----------- {} -</programlisting> +</screen> </para> <para> @@ -2216,7 +2216,7 @@ SELECT ts_lexize('public.simple_dict','The'); selected by setting the dictionary's <literal>Accept</> parameter to <literal>false</>. Continuing the example: -<programlisting> +<screen> ALTER TEXT SEARCH DICTIONARY public.simple_dict ( Accept = false ); SELECT ts_lexize('public.simple_dict','YeS'); @@ -2228,7 +2228,7 @@ SELECT ts_lexize('public.simple_dict','The'); ts_lexize ----------- {} -</programlisting> +</screen> </para> <para> @@ -2274,7 +2274,7 @@ SELECT ts_lexize('public.simple_dict','The'); synonym dictionary and put it before the <literal>english_stem</> dictionary. For example: -<programlisting> +<screen> SELECT * FROM ts_debug('english', 'Paris'); alias | description | token | dictionaries | dictionary | lexemes -----------+-----------------+-------+----------------+--------------+--------- @@ -2293,7 +2293,7 @@ SELECT * FROM ts_debug('english', 'Paris'); alias | description | token | dictionaries | dictionary | lexemes -----------+-----------------+-------+---------------------------+------------+--------- asciiword | Word, all ASCII | Paris | {my_synonym,english_stem} | my_synonym | {paris} -</programlisting> +</screen> </para> <para> @@ -2306,7 +2306,6 @@ SELECT * FROM ts_debug('english', 'Paris'); <para> Contents of <filename>$SHAREDIR/tsearch_data/synonym_sample.syn</>: - </para> <programlisting> postgres pgsql postgresql pgsql @@ -2314,44 +2313,45 @@ postgre pgsql gogle googl indices index* </programlisting> + </para> <para> Results: - </para> -<programlisting> -=# create text search dictionary syn( template=synonym,synonyms='synonym_sample'); -=# select ts_lexize('syn','indices'); +<screen> +=# CREATE TEXT SEARCH DICTIONARY syn (template=synonym, synonyms='synonym_sample'); +=# SELECT ts_lexize('syn','indices'); ts_lexize ----------- {index} (1 row) -=# create text search configuration tst ( copy=simple); -=# alter text search configuration tst alter mapping for asciiword with syn; -=# select to_tsquery('tst','indices'); +=# CREATE TEXT SEARCH CONFIGURATION tst (copy=simple); +=# ALTER TEXT SEARCH CONFIGURATION tst ALTER MAPPING FOR asciiword WITH syn; +=# SELECT to_tsquery('tst','indices'); to_tsquery ------------ 'index':* (1 row) -=# select 'indexes are very useful'::tsvector; +=# SELECT 'indexes are very useful'::tsvector; tsvector --------------------------------- 'are' 'indexes' 'useful' 'very' (1 row) -=# select 'indexes are very useful'::tsvector @@ to_tsquery('tst','indices'); +=# SELECT 'indexes are very useful'::tsvector @@ to_tsquery('tst','indices'); ?column? ---------- t (1 row) -=# select to_tsvector('tst','indices'); +=# SELECT to_tsvector('tst','indices'); to_tsvector ------------- 'index':1 (1 row) -</programlisting> +</screen> + </para> <para> The only parameter required by the <literal>synonym</> template is @@ -2544,7 +2544,7 @@ ALTER TEXT SEARCH CONFIGURATION russian <function>plainto_tsquery</function> and <function>to_tsvector</function> which will break their input strings into multiple tokens: -<programlisting> +<screen> SELECT plainto_tsquery('supernova star'); plainto_tsquery ----------------- @@ -2554,17 +2554,17 @@ SELECT to_tsvector('supernova star'); to_tsvector ------------- 'sn':1 -</programlisting> +</screen> In principle, one can use <function>to_tsquery</function> if you quote the argument: -<programlisting> +<screen> SELECT to_tsquery('''supernova star'''); to_tsquery ------------ 'sn' -</programlisting> +</screen> Notice that <literal>supernova star</literal> matches <literal>supernovae stars</literal> in <literal>thesaurus_astro</literal> because we specified @@ -2576,14 +2576,14 @@ SELECT to_tsquery('''supernova star'''); To index the original phrase as well as the substitute, just include it in the right-hand part of the definition: -<programlisting> +<screen> supernovae stars : sn supernovae stars SELECT plainto_tsquery('supernova star'); plainto_tsquery ----------------------------- 'sn' & 'supernova' & 'star' -</programlisting> +</screen> </para> </sect3> @@ -2820,7 +2820,7 @@ version of our software. The next step is to set the session to use the new configuration, which was created in the <literal>public</> schema: -<programlisting> +<screen> => \dF List of text search configurations Schema | Name | Description @@ -2834,7 +2834,7 @@ SHOW default_text_search_config; default_text_search_config ---------------------------- public.pg -</programlisting> +</screen> </para> </sect1> @@ -2861,16 +2861,16 @@ SHOW default_text_search_config; <primary>ts_debug</primary> </indexterm> - <synopsis> - ts_debug(<optional> <replaceable class="PARAMETER">config</replaceable> <type>regconfig</>, </optional> <replaceable class="PARAMETER">document</replaceable> <type>text</>, - OUT <replaceable class="PARAMETER">alias</> <type>text</>, - OUT <replaceable class="PARAMETER">description</> <type>text</>, - OUT <replaceable class="PARAMETER">token</> <type>text</>, - OUT <replaceable class="PARAMETER">dictionaries</> <type>regdictionary[]</>, - OUT <replaceable class="PARAMETER">dictionary</> <type>regdictionary</>, - OUT <replaceable class="PARAMETER">lexemes</> <type>text[]</>) - returns setof record - </synopsis> +<synopsis> +ts_debug(<optional> <replaceable class="PARAMETER">config</replaceable> <type>regconfig</>, </optional> <replaceable class="PARAMETER">document</replaceable> <type>text</>, + OUT <replaceable class="PARAMETER">alias</> <type>text</>, + OUT <replaceable class="PARAMETER">description</> <type>text</>, + OUT <replaceable class="PARAMETER">token</> <type>text</>, + OUT <replaceable class="PARAMETER">dictionaries</> <type>regdictionary[]</>, + OUT <replaceable class="PARAMETER">dictionary</> <type>regdictionary</>, + OUT <replaceable class="PARAMETER">lexemes</> <type>text[]</>) + returns setof record +</synopsis> <para> <function>ts_debug</> displays information about every token of @@ -2929,7 +2929,7 @@ SHOW default_text_search_config; <para> Here is a simple example: -<programlisting> +<screen> SELECT * FROM ts_debug('english','a fat cat sat on a mat - it ate a fat rats'); alias | description | token | dictionaries | dictionary | lexemes -----------+-----------------+-------+----------------+--------------+--------- @@ -2957,7 +2957,7 @@ SELECT * FROM ts_debug('english','a fat cat sat on a mat - it ate a fat rats'); asciiword | Word, all ASCII | fat | {english_stem} | english_stem | {fat} blank | Space symbols | | {} | | asciiword | Word, all ASCII | rats | {english_stem} | english_stem | {rat} -</programlisting> +</screen> </para> <para> @@ -2980,7 +2980,7 @@ ALTER TEXT SEARCH CONFIGURATION public.english ALTER MAPPING FOR asciiword WITH english_ispell, english_stem; </programlisting> -<programlisting> +<screen> SELECT * FROM ts_debug('public.english','The Brightest supernovaes'); alias | description | token | dictionaries | dictionary | lexemes -----------+-----------------+-------------+-------------------------------+----------------+------------- @@ -2989,7 +2989,7 @@ SELECT * FROM ts_debug('public.english','The Brightest supernovaes'); asciiword | Word, all ASCII | Brightest | {english_ispell,english_stem} | english_ispell | {bright} blank | Space symbols | | {} | | asciiword | Word, all ASCII | supernovaes | {english_ispell,english_stem} | english_stem | {supernova} -</programlisting> +</screen> <para> In this example, the word <literal>Brightest</> was recognized by the @@ -3018,7 +3018,7 @@ SELECT * FROM ts_debug('public.english','The Brightest supernovaes'); You can reduce the width of the output by explicitly specifying which columns you want to see: -<programlisting> +<screen> SELECT alias, token, dictionary, lexemes FROM ts_debug('public.english','The Brightest supernovaes'); alias | token | dictionary | lexemes @@ -3028,7 +3028,7 @@ FROM ts_debug('public.english','The Brightest supernovaes'); asciiword | Brightest | english_ispell | {bright} blank | | | asciiword | supernovaes | english_stem | {supernova} -</programlisting> +</screen> </para> </sect2> @@ -3044,12 +3044,12 @@ FROM ts_debug('public.english','The Brightest supernovaes'); <primary>ts_parse</primary> </indexterm> - <synopsis> - ts_parse(<replaceable class="PARAMETER">parser_name</replaceable> <type>text</>, <replaceable class="PARAMETER">document</replaceable> <type>text</>, - OUT <replaceable class="PARAMETER">tokid</> <type>integer</>, OUT <replaceable class="PARAMETER">token</> <type>text</>) returns <type>setof record</> - ts_parse(<replaceable class="PARAMETER">parser_oid</replaceable> <type>oid</>, <replaceable class="PARAMETER">document</replaceable> <type>text</>, - OUT <replaceable class="PARAMETER">tokid</> <type>integer</>, OUT <replaceable class="PARAMETER">token</> <type>text</>) returns <type>setof record</> - </synopsis> +<synopsis> +ts_parse(<replaceable class="PARAMETER">parser_name</replaceable> <type>text</>, <replaceable class="PARAMETER">document</replaceable> <type>text</>, + OUT <replaceable class="PARAMETER">tokid</> <type>integer</>, OUT <replaceable class="PARAMETER">token</> <type>text</>) returns <type>setof record</> +ts_parse(<replaceable class="PARAMETER">parser_oid</replaceable> <type>oid</>, <replaceable class="PARAMETER">document</replaceable> <type>text</>, + OUT <replaceable class="PARAMETER">tokid</> <type>integer</>, OUT <replaceable class="PARAMETER">token</> <type>text</>) returns <type>setof record</> +</synopsis> <para> <function>ts_parse</> parses the given <replaceable>document</replaceable> @@ -3058,7 +3058,7 @@ FROM ts_debug('public.english','The Brightest supernovaes'); assigned token type and a <varname>token</varname> which is the text of the token. For example: -<programlisting> +<screen> SELECT * FROM ts_parse('default', '123 - a number'); tokid | token -------+-------- @@ -3068,19 +3068,19 @@ SELECT * FROM ts_parse('default', '123 - a number'); 1 | a 12 | 1 | number -</programlisting> +</screen> </para> <indexterm> <primary>ts_token_type</primary> </indexterm> - <synopsis> - ts_token_type(<replaceable class="PARAMETER">parser_name</> <type>text</>, OUT <replaceable class="PARAMETER">tokid</> <type>integer</>, - OUT <replaceable class="PARAMETER">alias</> <type>text</>, OUT <replaceable class="PARAMETER">description</> <type>text</>) returns <type>setof record</> - ts_token_type(<replaceable class="PARAMETER">parser_oid</> <type>oid</>, OUT <replaceable class="PARAMETER">tokid</> <type>integer</>, - OUT <replaceable class="PARAMETER">alias</> <type>text</>, OUT <replaceable class="PARAMETER">description</> <type>text</>) returns <type>setof record</> - </synopsis> +<synopsis> +ts_token_type(<replaceable class="PARAMETER">parser_name</> <type>text</>, OUT <replaceable class="PARAMETER">tokid</> <type>integer</>, + OUT <replaceable class="PARAMETER">alias</> <type>text</>, OUT <replaceable class="PARAMETER">description</> <type>text</>) returns <type>setof record</> +ts_token_type(<replaceable class="PARAMETER">parser_oid</> <type>oid</>, OUT <replaceable class="PARAMETER">tokid</> <type>integer</>, + OUT <replaceable class="PARAMETER">alias</> <type>text</>, OUT <replaceable class="PARAMETER">description</> <type>text</>) returns <type>setof record</> +</synopsis> <para> <function>ts_token_type</> returns a table which describes each type of @@ -3090,7 +3090,7 @@ SELECT * FROM ts_parse('default', '123 - a number'); in configuration commands, and a short <varname>description</varname>. For example: -<programlisting> +<screen> SELECT * FROM ts_token_type('default'); tokid | alias | description -------+-----------------+------------------------------------------ @@ -3117,7 +3117,7 @@ SELECT * FROM ts_token_type('default'); 21 | int | Signed integer 22 | uint | Unsigned integer 23 | entity | XML entity -</programlisting> +</screen> </para> </sect2> @@ -3133,9 +3133,9 @@ SELECT * FROM ts_token_type('default'); <primary>ts_lexize</primary> </indexterm> - <synopsis> - ts_lexize(<replaceable class="PARAMETER">dict</replaceable> <type>regdictionary</>, <replaceable class="PARAMETER">token</replaceable> <type>text</>) returns <type>text[]</> - </synopsis> +<synopsis> +ts_lexize(<replaceable class="PARAMETER">dict</replaceable> <type>regdictionary</>, <replaceable class="PARAMETER">token</replaceable> <type>text</>) returns <type>text[]</> +</synopsis> <para> <function>ts_lexize</> returns an array of lexemes if the input @@ -3148,7 +3148,7 @@ SELECT * FROM ts_token_type('default'); <para> Examples: -<programlisting> +<screen> SELECT ts_lexize('english_stem', 'stars'); ts_lexize ----------- @@ -3158,7 +3158,7 @@ SELECT ts_lexize('english_stem', 'a'); ts_lexize ----------- {} -</programlisting> +</screen> </para> <note> @@ -3167,12 +3167,12 @@ SELECT ts_lexize('english_stem', 'a'); <emphasis>token</emphasis>, not text. Here is a case where this can be confusing: -<programlisting> +<screen> SELECT ts_lexize('thesaurus_astro','supernovae stars') is null; ?column? ---------- t -</programlisting> +</screen> The thesaurus dictionary <literal>thesaurus_astro</literal> does know the phrase <literal>supernovae stars</literal>, but <function>ts_lexize</> @@ -3180,12 +3180,12 @@ SELECT ts_lexize('thesaurus_astro','supernovae stars') is null; token. Use <function>plainto_tsquery</> or <function>to_tsvector</> to test thesaurus dictionaries, for example: -<programlisting> +<screen> SELECT plainto_tsquery('supernovae stars'); plainto_tsquery ----------------- 'sn' -</programlisting> +</screen> </para> </note> @@ -3219,9 +3219,9 @@ SELECT plainto_tsquery('supernovae stars'); </indexterm> <term> - <synopsis> - CREATE INDEX <replaceable>name</replaceable> ON <replaceable>table</replaceable> USING gist(<replaceable>column</replaceable>); - </synopsis> +<synopsis> +CREATE INDEX <replaceable>name</replaceable> ON <replaceable>table</replaceable> USING gist(<replaceable>column</replaceable>); +</synopsis> </term> <listitem> @@ -3242,9 +3242,9 @@ SELECT plainto_tsquery('supernovae stars'); </indexterm> <term> - <synopsis> - CREATE INDEX <replaceable>name</replaceable> ON <replaceable>table</replaceable> USING gin(<replaceable>column</replaceable>); - </synopsis> +<synopsis> +CREATE INDEX <replaceable>name</replaceable> ON <replaceable>table</replaceable> USING gin(<replaceable>column</replaceable>); +</synopsis> </term> <listitem> @@ -3358,9 +3358,9 @@ SELECT plainto_tsquery('supernovae stars'); <para> Information about text search configuration objects can be obtained in <application>psql</application> using a set of commands: - <synopsis> - \dF{d,p,t}<optional>+</optional> <optional>PATTERN</optional> - </synopsis> +<synopsis> +\dF{d,p,t}<optional>+</optional> <optional>PATTERN</optional> +</synopsis> An optional <literal>+</literal> produces more details. </para> @@ -3372,39 +3372,33 @@ SELECT plainto_tsquery('supernovae stars'); regular expression and can provide <emphasis>separate</emphasis> patterns for the schema and object names. The following examples illustrate this: -<programlisting> +<screen> => \dF *fulltext* List of text search configurations Schema | Name | Description --------+--------------+------------- public | fulltext_cfg | -</programlisting> +</screen> -<programlisting> +<screen> => \dF *.fulltext* List of text search configurations Schema | Name | Description ----------+---------------------------- fulltext | fulltext_cfg | public | fulltext_cfg | -</programlisting> +</screen> The available commands are: </para> <variablelist> - <varlistentry> <term><synopsis>\dF<optional>+</optional> <optional>PATTERN</optional></synopsis></term> - <listitem> <para> List text search configurations (add <literal>+</> for more detail). - </para> - - <para> - -<programlisting> +<screen> => \dF russian List of text search configurations Schema | Name | Description @@ -3435,7 +3429,7 @@ Parser: "pg_catalog.default" url_path | simple version | simple word | russian_stem -</programlisting> +</screen> </para> </listitem> </varlistentry> @@ -3445,10 +3439,7 @@ Parser: "pg_catalog.default" <listitem> <para> List text search dictionaries (add <literal>+</> for more detail). - </para> - - <para> -<programlisting> +<screen> => \dFd List of text search dictionaries Schema | Name | Description @@ -3469,21 +3460,17 @@ Parser: "pg_catalog.default" pg_catalog | spanish_stem | snowball stemmer for spanish language pg_catalog | swedish_stem | snowball stemmer for swedish language pg_catalog | turkish_stem | snowball stemmer for turkish language -</programlisting> +</screen> </para> </listitem> </varlistentry> <varlistentry> - <term><synopsis>\dFp<optional>+</optional> <optional>PATTERN</optional></synopsis></term> <listitem> <para> List text search parsers (add <literal>+</> for more detail). - </para> - - <para> -<programlisting> +<screen> => \dFp List of text search parsers Schema | Name | Description @@ -3526,21 +3513,17 @@ Parser: "pg_catalog.default" version | Version number word | Word, all letters (23 rows) -</programlisting> +</screen> </para> </listitem> </varlistentry> <varlistentry> - <term><synopsis>\dFt<optional>+</optional> <optional>PATTERN</optional></synopsis></term> <listitem> <para> List text search templates (add <literal>+</> for more detail). - </para> - - <para> -<programlisting> +<screen> => \dFt List of text search templates Schema | Name | Description @@ -3550,11 +3533,10 @@ Parser: "pg_catalog.default" pg_catalog | snowball | snowball stemmer pg_catalog | synonym | synonym dictionary: replace word by its synonym pg_catalog | thesaurus | thesaurus dictionary: phrase by phrase substitution -</programlisting> +</screen> </para> </listitem> </varlistentry> - </variablelist> </sect1> diff --git a/doc/src/sgml/unaccent.sgml b/doc/src/sgml/unaccent.sgml index 24fcd598f3fca951fd1c1b6f37916e49133b502f..6d6a1d6b1380e661837da727258a0e957232fc67 100644 --- a/doc/src/sgml/unaccent.sgml +++ b/doc/src/sgml/unaccent.sgml @@ -44,7 +44,7 @@ <listitem> <para> Each line represents pair: character_with_accent character_without_accent - <programlisting> +<programlisting> À A Á A  A @@ -52,7 +52,7 @@ Ä A Å A Æ A - </programlisting> +</programlisting> </para> </listitem> </itemizedlist> @@ -133,15 +133,14 @@ <primary>unaccent</primary> </indexterm> - <synopsis> - unaccent(<optional><replaceable class="PARAMETER">dictionary</replaceable>, - </optional> <replaceable class="PARAMETER">string</replaceable>) - returns <type>text</type> - </synopsis> +<synopsis> +unaccent(<optional><replaceable class="PARAMETER">dictionary</replaceable>, </optional> <replaceable class="PARAMETER">string</replaceable>) +returns <type>text</type> +</synopsis> <para> <programlisting> -SELECT unaccent('unaccent','Hôtel'); +SELECT unaccent('unaccent', 'Hôtel'); SELECT unaccent('Hôtel'); </programlisting> </para> diff --git a/doc/src/sgml/uuid-ossp.sgml b/doc/src/sgml/uuid-ossp.sgml index 8acfb5ed7b3ca417da992d623312feb44190f1e2..98bc6f2dc4cc672e095bf577d78dfcc490983f64 100644 --- a/doc/src/sgml/uuid-ossp.sgml +++ b/doc/src/sgml/uuid-ossp.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/uuid-ossp.sgml,v 1.2 2007/12/06 04:12:10 tgl Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/uuid-ossp.sgml,v 1.3 2010/07/29 19:34:40 petere Exp $ --> <sect1 id="uuid-ossp"> <title>uuid-ossp</title> @@ -99,9 +99,9 @@ <para> For example: - <programlisting> - SELECT uuid_generate_v3(uuid_ns_url(), 'http://www.postgresql.org'); - </programlisting> +<programlisting> +SELECT uuid_generate_v3(uuid_ns_url(), 'http://www.postgresql.org'); +</programlisting> The name parameter will be MD5-hashed, so the cleartext cannot be derived from the generated UUID. diff --git a/doc/src/sgml/vacuumlo.sgml b/doc/src/sgml/vacuumlo.sgml index 5a1a69a1ea89e9ef454d3eba64f5f8f63d54ad2a..8e3a4ba1817f90de91aadf17b4cf9d3c2a1945d1 100644 --- a/doc/src/sgml/vacuumlo.sgml +++ b/doc/src/sgml/vacuumlo.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/vacuumlo.sgml,v 1.4 2009/02/26 16:02:37 petere Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/vacuumlo.sgml,v 1.5 2010/07/29 19:34:40 petere Exp $ --> <sect1 id="vacuumlo"> <title>vacuumlo</title> @@ -25,9 +25,9 @@ <sect2> <title>Usage</title> - <synopsis> +<synopsis> vacuumlo [options] database [database2 ... databaseN] - </synopsis> +</synopsis> <para> All databases named on the command line are processed. Available options diff --git a/doc/src/sgml/xaggr.sgml b/doc/src/sgml/xaggr.sgml index b78a336c19cce9b5b76e89bb6adb4425281ee31a..bcbfde9c3762f99febb70043dfc7ba58ab5c6956 100644 --- a/doc/src/sgml/xaggr.sgml +++ b/doc/src/sgml/xaggr.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/xaggr.sgml,v 1.40 2010/04/03 07:22:56 petere Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/xaggr.sgml,v 1.41 2010/07/29 19:34:40 petere Exp $ --> <sect1 id="xaggr"> <title>User-Defined Aggregates</title> @@ -169,7 +169,7 @@ SELECT attrelid::regclass, array_accum(atttypid::regtype) aggregate transition or final function by calling <function>AggCheckCallContext</>, for example: <programlisting> - if (AggCheckCallContext(fcinfo, NULL)) +if (AggCheckCallContext(fcinfo, NULL)) </programlisting> One reason for checking this is that when it is true for a transition function, the first input diff --git a/doc/src/sgml/xfunc.sgml b/doc/src/sgml/xfunc.sgml index 93bdf572f37f430a3fcd788c81bca60b68195f6f..dff7964925b4610414a500e3658e973e2277dca3 100644 --- a/doc/src/sgml/xfunc.sgml +++ b/doc/src/sgml/xfunc.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/xfunc.sgml,v 1.151 2010/07/26 20:14:05 petere Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/xfunc.sgml,v 1.152 2010/07/29 19:34:40 petere Exp $ --> <sect1 id="xfunc"> <title>User-Defined Functions</title> @@ -3359,22 +3359,22 @@ void RequestAddinLWLocks(int n) <function>AddinShmemInitLock</> when connecting to and initializing its allocation of shared memory, as shown here: <programlisting> - static mystruct *ptr = NULL; +static mystruct *ptr = NULL; - if (!ptr) +if (!ptr) +{ + bool found; + + LWLockAcquire(AddinShmemInitLock, LW_EXCLUSIVE); + ptr = ShmemInitStruct("my struct name", size, &found); + if (!found) { - bool found; - - LWLockAcquire(AddinShmemInitLock, LW_EXCLUSIVE); - ptr = ShmemInitStruct("my struct name", size, &found); - if (!found) - { - initialize contents of shmem area; - acquire any requested LWLocks using: - ptr->mylockid = LWLockAssign(); - } - LWLockRelease(AddinShmemInitLock); + initialize contents of shmem area; + acquire any requested LWLocks using: + ptr->mylockid = LWLockAssign(); } + LWLockRelease(AddinShmemInitLock); +} </programlisting> </para> </sect2> diff --git a/doc/src/sgml/xml2.sgml b/doc/src/sgml/xml2.sgml index 9943b579ab377a9b58f26282bf15834ec1ad3692..8639921997c84c2fa30e50c64da15355be57dbb1 100644 --- a/doc/src/sgml/xml2.sgml +++ b/doc/src/sgml/xml2.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/xml2.sgml,v 1.8 2010/07/27 19:01:16 petere Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/xml2.sgml,v 1.9 2010/07/29 19:34:40 petere Exp $ --> <sect1 id="xml2"> <title>xml2</title> @@ -45,9 +45,9 @@ <tbody> <row> <entry> - <synopsis> - xml_is_well_formed(document) returns bool - </synopsis> +<synopsis> +xml_is_well_formed(document) returns bool +</synopsis> </entry> <entry> <para> @@ -61,11 +61,11 @@ </row> <row> <entry> - <synopsis> - xpath_string(document,query) returns text - xpath_number(document,query) returns float4 - xpath_bool(document,query) returns bool - </synopsis> +<synopsis> +xpath_string(document, query) returns text +xpath_number(document, query) returns float4 +xpath_bool(document, query) returns bool +</synopsis> </entry> <entry> <para> @@ -76,31 +76,29 @@ </row> <row> <entry> - <synopsis> - xpath_nodeset(document,query,toptag,itemtag) returns text - </synopsis> +<synopsis> +xpath_nodeset(document, query, toptag, itemtag) returns text +</synopsis> </entry> <entry> <para> This evaluates query on document and wraps the result in XML tags. If the result is multivalued, the output will look like: - </para> - <literal> - <toptag> - <itemtag>Value 1 which could be an XML fragment</itemtag> - <itemtag>Value 2....</itemtag> - </toptag> - </literal> - <para> +<synopsis> +<toptag> +<itemtag>Value 1 which could be an XML fragment</itemtag> +<itemtag>Value 2....</itemtag> +</toptag> +</synopsis> If either toptag or itemtag is an empty string, the relevant tag is omitted. </para> </entry> </row> <row> <entry> - <synopsis> - xpath_nodeset(document,query) returns text - </synopsis> +<synopsis> +xpath_nodeset(document, query) returns text +</synopsis> </entry> <entry> <para> @@ -110,9 +108,9 @@ </row> <row> <entry> - <synopsis> - xpath_nodeset(document,query,itemtag) returns text - </synopsis> +<synopsis> +xpath_nodeset(document, query, itemtag) returns text +</synopsis> </entry> <entry> <para> @@ -122,9 +120,9 @@ </row> <row> <entry> - <synopsis> - xpath_list(document,query,separator) returns text - </synopsis> +<synopsis> +xpath_list(document, query, separator) returns text +</synopsis> </entry> <entry> <para> @@ -136,9 +134,9 @@ </row> <row> <entry> - <synopsis> - xpath_list(document,query) returns text - </synopsis> +<synopsis> +xpath_list(document, query) returns text +</synopsis> </entry> <entry> This is a wrapper for the above function that uses <literal>,</> @@ -153,9 +151,9 @@ <sect2> <title><literal>xpath_table</literal></title> - <synopsis> - xpath_table(text key, text document, text relation, text xpaths, text criteria) returns setof record - </synopsis> +<synopsis> +xpath_table(text key, text document, text relation, text xpaths, text criteria) returns setof record +</synopsis> <para> <function>xpath_table</> is a table function that evaluates a set of XPath @@ -240,9 +238,7 @@ <para> The function has to be used in a <literal>FROM</> expression, with an <literal>AS</> clause to specify the output columns; for example - </para> - - <programlisting> +<programlisting> SELECT * FROM xpath_table('article_id', 'article_xml', @@ -250,9 +246,7 @@ xpath_table('article_id', '/article/author|/article/pages|/article/title', 'date_entered > ''2003-01-01'' ') AS t(article_id integer, author text, page_count integer, title text); - </programlisting> - - <para> +</programlisting> The <literal>AS</> clause defines the names and types of the columns in the output table. The first is the <quote>key</> field and the rest correspond to the XPath queries. @@ -278,9 +272,7 @@ AS t(article_id integer, author text, page_count integer, title text); columns by name or join them to other tables. The function produces a virtual table with which you can perform any operation you wish (e.g. aggregation, joining, sorting etc). So we could also have: - </para> - - <programlisting> +<programlisting> SELECT t.title, p.fullname, p.email FROM xpath_table('article_id', 'article_xml', 'articles', '/article/title|/article/author/@id', @@ -288,9 +280,7 @@ FROM xpath_table('article_id', 'article_xml', 'articles', AS t(article_id integer, title text, author_id integer), tblPeopleInfo AS p WHERE t.author_id = p.person_id; - </programlisting> - - <para> +</programlisting> as a more complicated example. Of course, you could wrap all of this in a view for convenience. </para> @@ -314,60 +304,59 @@ WHERE t.author_id = p.person_id; result will appear only on the first row of the result. The solution to this is to use the key field as part of a join against a simpler XPath query. As an example: - </para> - <programlisting> - CREATE TABLE test ( - id int4 NOT NULL, - xml text, - CONSTRAINT pk PRIMARY KEY (id) - ); - - INSERT INTO test VALUES (1, '<doc num="C1"> - <line num="L1"><a>1</a><b>2</b><c>3</c></line> - <line num="L2"><a>11</a><b>22</b><c>33</c></line> - </doc>'); - - INSERT INTO test VALUES (2, '<doc num="C2"> - <line num="L1"><a>111</a><b>222</b><c>333</c></line> - <line num="L2"><a>111</a><b>222</b><c>333</c></line> - </doc>'); - - SELECT * FROM - xpath_table('id','xml','test', - '/doc/@num|/doc/line/@num|/doc/line/a|/doc/line/b|/doc/line/c', - 'true') - AS t(id int4, doc_num varchar(10), line_num varchar(10), val1 int4, val2 int4, val3 int4) - WHERE id = 1 ORDER BY doc_num, line_num - - id | doc_num | line_num | val1 | val2 | val3 - ----+---------+----------+------+------+------ - 1 | C1 | L1 | 1 | 2 | 3 - 1 | | L2 | 11 | 22 | 33 - </programlisting> +<programlisting> +CREATE TABLE test ( + id int PRIMARY KEY, + xml text +); + +INSERT INTO test VALUES (1, '<doc num="C1"> +<line num="L1"><a>1</a><b>2</b><c>3</c></line> +<line num="L2"><a>11</a><b>22</b><c>33</c></line> +</doc>'); + +INSERT INTO test VALUES (2, '<doc num="C2"> +<line num="L1"><a>111</a><b>222</b><c>333</c></line> +<line num="L2"><a>111</a><b>222</b><c>333</c></line> +</doc>'); + +SELECT * FROM + xpath_table('id','xml','test', + '/doc/@num|/doc/line/@num|/doc/line/a|/doc/line/b|/doc/line/c', + 'true') + AS t(id int, doc_num varchar(10), line_num varchar(10), val1 int, val2 int, val3 int) +WHERE id = 1 ORDER BY doc_num, line_num + + id | doc_num | line_num | val1 | val2 | val3 +----+---------+----------+------+------+------ + 1 | C1 | L1 | 1 | 2 | 3 + 1 | | L2 | 11 | 22 | 33 +</programlisting> + </para> <para> To get doc_num on every line, the solution is to use two invocations of xpath_table and join the results: - </para> - <programlisting> - SELECT t.*,i.doc_num FROM - xpath_table('id', 'xml', 'test', - '/doc/line/@num|/doc/line/a|/doc/line/b|/doc/line/c', - 'true') - AS t(id int4, line_num varchar(10), val1 int4, val2 int4, val3 int4), - xpath_table('id', 'xml', 'test', '/doc/@num', 'true') - AS i(id int4, doc_num varchar(10)) - WHERE i.id=t.id AND i.id=1 - ORDER BY doc_num, line_num; - - id | line_num | val1 | val2 | val3 | doc_num - ----+----------+------+------+------+--------- - 1 | L1 | 1 | 2 | 3 | C1 - 1 | L2 | 11 | 22 | 33 | C1 - (2 rows) - </programlisting> +<programlisting> +SELECT t.*,i.doc_num FROM + xpath_table('id', 'xml', 'test', + '/doc/line/@num|/doc/line/a|/doc/line/b|/doc/line/c', + 'true') + AS t(id int, line_num varchar(10), val1 int, val2 int, val3 int), + xpath_table('id', 'xml', 'test', '/doc/@num', 'true') + AS i(id int, doc_num varchar(10)) +WHERE i.id=t.id AND i.id=1 +ORDER BY doc_num, line_num; + + id | line_num | val1 | val2 | val3 | doc_num +----+----------+------+------+------+--------- + 1 | L1 | 1 | 2 | 3 | C1 + 1 | L2 | 11 | 22 | 33 | C1 +(2 rows) +</programlisting> + </para> </sect3> </sect2> @@ -381,9 +370,9 @@ WHERE t.author_id = p.person_id; <sect3> <title><literal>xslt_process</literal></title> - <synopsis> - xslt_process(text document, text stylesheet, text paramlist) returns text - </synopsis> +<synopsis> +xslt_process(text document, text stylesheet, text paramlist) returns text +</synopsis> <para> This function applies the XSL stylesheet to the document and returns