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Commit 2acdef18 authored by Peter Eisentraut's avatar Peter Eisentraut
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Move contrib/odbc/odbc.sql together with odbc driver, remove old files; 

revise ODBC "installation instructions"; update some other outdated
documentation; update contrib documentation
parent 7cce0111
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contrib/Contrib.index deleted 100644 → 0
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The PostgreSQL contrib:
~~~~~~~~~~~~~~~~~~~~~~
tips/apache_logging -
Getting Apache to log to PostgreSQL
by Terry Mackintosh <terry@terrym.com>
array -
Array iterator functions
by Massimo Dal Zotto <dz@cs.unitn.it>
earthdistance -
Operator for computing earth distance for two points
by Hal Snyder <hal@vailsys.com>
findoidjoins -
Finds the joins used by oid columns by examining the actual
values in the oid columns and row oids.
by Bruce Momjian <root@candle.pha.pa.us>
fulltextindex -
Full text indexing using triggers
by Maarten Boekhold <maartenb@dutepp0.et.tudelft.nl>
isbn_issn -
PostgreSQL type extensions for ISBN (books) and ISSN (serials)
by Garrett A. Wollman <wollman@khavrinen.lcs.mit.edu>
linux -
Start postgres back end system
by Thomas Lockhart <lockhart@alumni.caltech.edu>
lo -
Large Object maintenance
by Peter Mount <peter@retep.org.uk>
miscutil -
Postgres assert checking and various utility functions
by Dal Zotto <dz@cs.unitn.it>
mSQL-interface -
mSQL API translation library
by Aldrin Leal <aldrin@americasnet.com>
noupdate -
trigger to prevent updates on single columns
pg_dumplo -
Dump large objects
by Karel Zak <zakkr@zf.jcu.cz>
soundex -
Prototype for soundex function
spi -
A general trigger function autoinc() and so on.
string -
C-like input/output conversion routines for strings
by Massimo Dal Zotto <dz@cs.unitn.it>
tools -
Assorted developer tools
by Massimo Dal Zotto <dz@cs.unitn.it>
unixdate -
Conversions from integer to datetime
by Thomas Lockhart <lockhart@alumni.caltech.edu>
userlock -
User locks
by Massimo Dal Zotto <dz@cs.unitn.it>
vacuumlo -
Remove orphaned large objects
by Peter T Mount <peter@retep.org.uk>
pgbench -
TPC-B like benchmarking tool
by Tatsuo Ishii <t-ishii@sra.co.jp>
contrib/Makefile
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#
# The PostgreSQL contrib tree Makefile
#
# $Header: /cvsroot/pgsql/contrib/Makefile,v 1.7 2000/07/16 14:50:29 petere Exp $
#
# $Header: /cvsroot/pgsql/contrib/Makefile,v 1.8 2000/09/18 20:11:34 petere Exp $
subdir = contrib
top_builddir = ..
include ../src/Makefile.global
include $(top_builddir)/src/Makefile.global
WANTED_DIRS = array \
earthdistance \
......@@ -16,6 +12,7 @@ WANTED_DIRS = array \
linux \
lo \
mSQL-interface \
mac \
miscutil \
noupdate \
pg_dumplo \
......@@ -27,19 +24,10 @@ WANTED_DIRS = array \
unixdate \
userlock \
vacuumlo
# odbc
all install installdirs uninstall clean distclean maintainer-clean:
for dir in $(WANTED_DIRS); do \
if [ -e $$dir/Makefile ]; then \
$(MAKE) -C $$dir $@ ; \
$(MAKE) -C $$dir $@; \
fi; \
done
install:
for dir in $(WANTED_DIRS); do \
if [ -e $$dir/Makefile ]; then \
$(MAKE) -C $$dir $@ ; \
fi; \
done
$(INSTALL_DATA) Contrib.index $(docdir)/contrib
contrib/README
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The PostgreSQL contrib tree
~~~~~~~~~~~~~~~~~~~~~~~~~~~
The PostgreSQL contrib tree
~~~~~~~~~~~~~~~~~~~~~~~~~~~
This subtree contains tools, modules, and examples that are not
maintained as part of the core PostgreSQL system, mainly because
they only address a limited audience or are too inelegant to be
sold as an official feature. That, however, does not preclude
their usefulness.
FIXME:
odbc
spi/preprocessor
tools
Each subdirectory contains a README file with information about the
module. Most items can be built with `gmake all' and installed
with `gmake install' in the usual fashion, after you have run the
`configure' script in the top-level directory. Some directories
supply new user-defined functions, operators, or types. After you
have installed the files you need to register the new entities in
the database system by running the commands in the supplied .sql
file. For example,
- the contrib contain is in the "Contrib.index"
$ psql -d dbname -f module.sql
- in each directory must be Makefile, possible Makefile template
is below this text,
See the PostgreSQL documentation for more information about this
procedure.
--------
#
# $Header: /cvsroot/pgsql/contrib/README,v 1.19 2000/06/19 13:52:59 momjian Exp $
#
TOPDIR=../..
Index:
------
include ../Makefile.global
array -
Array iterator functions
by Massimo Dal Zotto <dz@cs.unitn.it>
NAME = some_name
earthdistance -
Operator for computing earth distance for two points
by Hal Snyder <hal@vailsys.com>
PROGRAM =
OBJS = $(NAME).o
DOCS = $(NAME).doc
SQLS = $(NAME).sql
BINS =
EXAMPLES=
MODS = $(NAME)$(DLSUFFIX)
findoidjoins -
Finds the joins used by oid columns by examining the actual
values in the oid columns and row oids.
by Bruce Momjian <pgman@candle.pha.pa.us>
CFLAGS += -I. $(CFLAGS_SL)
fulltextindex -
Full text indexing using triggers
by Maarten Boekhold <maartenb@dutepp0.et.tudelft.nl>
OTHER_CLEAN = $(SQLS)
isbn_issn -
PostgreSQL type extensions for ISBN (books) and ISSN (serials)
by Garrett A. Wollman <wollman@khavrinen.lcs.mit.edu>
all: $(MODS) $(SQLS)
linux -
Scripts for starting and stopping the PostgreSQL server on
a Linux system
by Thomas Lockhart <lockhart@alumni.caltech.edu>
%.sql: %.sql.in
$(SED) "s|MODULE_PATHNAME|$(CONTRIB_MODDIR)/$@|" < $< > $@
lo -
Large Object maintenance
by Peter Mount <peter@retep.org.uk>
mSQL-interface -
mSQL API translation library
by Aldrin Leal <aldrin@americasnet.com>
install: install_doc install_sql install_mod install_bin install_example
mac -
Support functions for MAC address types
by Lawrence E. Rosenman <ler@lerctr.org>
install_doc:
for inst_file in $(DOCS); do \
$(INSTALL) $(INSTL_LIB_OPTS) $$inst_file $(CONTRIB_DOCDIR); \
done
miscutil -
PostgreSQL assert checking and various utility functions
by Massimo Dal Zotto <dz@cs.unitn.it>
install_sql:
for inst_file in $(SQLS); do \
$(INSTALL) $(INSTL_LIB_OPTS) $$inst_file $(CONTRIB_SQLDIR); \
done
noupdate -
trigger to prevent updates on single columns
install_mod:
for inst_file in $(MODS); do \
$(INSTALL) $(INSTL_SHLIB_OPTS) $$inst_file $(CONTRIB_MODDIR); \
done
pgbench -
TPC-B like benchmarking tool
by Tatsuo Ishii <t-ishii@sra.co.jp>
install_bin:
for inst_file in $(BINS); do \
$(INSTALL) $(INSTL_EXE_OPTS) $$inst_file $(CONTRIB_BINDIR); \
done
pg_dumplo -
Dump large objects
by Karel Zak <zakkr@zf.jcu.cz>
install_example:
for inst_file in $(EXAMPLES); do \
$(INSTALL) $(INSTL_LIB_OPTS) $$inst_file $(CONTRIB_EXAMPLESDIR); \
done
soundex -
Soundex function
depend dep:
$(CC) -MM -MG $(CFLAGS) *.c > depend
spi -
Various trigger functions, examples for using SPI.
clean:
$(RM) *~ $(OBJS) $(MODS) $(PROGRAM) depend $(OTHER_CLEAN) core log
string -
C-like input/output conversion routines for strings
by Massimo Dal Zotto <dz@cs.unitn.it>
ifeq (depend,$(wildcard depend))
include depend
endif
-----------
\ No newline at end of file
tips/apache_logging -
Getting Apache to log to PostgreSQL
by Terry Mackintosh <terry@terrym.com>
tools -
Assorted developer tools
by Massimo Dal Zotto <dz@cs.unitn.it>
unixdate -
Conversions from integer to datetime
by Thomas Lockhart <lockhart@alumni.caltech.edu>
userlock -
User locks
by Massimo Dal Zotto <dz@cs.unitn.it>
vacuumlo -
Remove orphaned large objects
by Peter T Mount <peter@retep.org.uk>
contrib/mac/README.mac 0 → 100644
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This directory contains tools to create a mapping table from MAC
addresses (e.g., Ethernet hardware addresses) to human-readable
manufacturer strings. The `createoui' script builds the table
structure, `updateoui' obtains the current official mapping table
from the web site of the IEEE, converts it, and stores it in the
database, `dropoui' removes everything. Use the --help option to
get more usage information from the respective script. All three
use the psql program; any extra arguments will be passed to psql.
contrib/odbc/Makefile deleted 100644 → 0
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# ODBC extensions
# Thomas Lockhart 2000-04-03
subdir = contrib/odbc
top_builddir = ../..
include $(top_builddir)/src/Makefile.global
ifndef PGLIB
PGLIB= .
endif
CFLAGS+= $(CFLAGS_SL)
TARGETS_7= odbc.sql
TARGETS_PRE7= odbc$(DLSUFFIX) odbc-pre7.sql
TARGETS= $(TARGETS_7)
CLEANFILES+= $(TARGETS) $(TARGETS_PRE7)
all: $(TARGETS)
install: all
ifneq ($(filter odbc$(DLSUFFIX), $(TARGETS)),)
-test -d $(PGLIB) || $(INSTALL) -d $(PGLIB)
$(INSTALL) odbc$(DLSUFFIX) $(PGLIB)
endif
pre7:
$(MAKE) TARGETS="$(TARGETS) $(TARGETS_PRE7)"
install-pre7:
$(MAKE) TARGETS="$(TARGETS) $(TARGETS_PRE7)" install
odbc-pre7.sql: odbc-pre7.source odbc.sql
rm -f $@; \
cat $^ \
| sed -e "s:_OBJWD_:$(PGLIB):g" \
-e "s:_DLSUFFIX_:$(DLSUFFIX):g" \
-e "s:float(15):float8:g" > $@
%.sql: %.source
rm -f $@; \
sed -e "s:_OBJWD_:$(PGLIB):g" \
-e "s:_DLSUFFIX_:$(DLSUFFIX):g" < $< > $@
clean:
rm -f $(TARGETS) *.o
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This directory contains support functions for the ODBC driver
supplied with PostgreSQL-7.0.
To enable additional ODBC functions with PostgreSQL-7.0, simply
execute the commands in odbc.sql:
psql
Welcome to psql, the PostgreSQL interactive terminal.
Type: \copyright for distribution terms
\h for help with SQL commands
\? for help on internal slash commands
\g or terminate with semicolon to execute query
\q to quit
postgres=# \i odbc.sql
CREATE
...
To enable additional ODBC functions with versions of PostgreSQL
prior to PostgreSQL-7.0 (e.g. PostgreSQL-6.5.3), build the shared
library and SQL commands as follows:
make pre7
psql
Welcome to psql, the PostgreSQL interactive terminal.
Type: \copyright for distribution terms
\h for help with SQL commands
\? for help on internal slash commands
\g or terminate with semicolon to execute query
\q to quit
postgres=# \i odbc-pre7.sql
CREATE
...
contrib/odbc/odbc-pre7.source deleted 100644 → 0
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-- ODBC-pre7.sql
--
-- Use float8 rather than float(15) since pre-7.0 does not accept
-- SQL92 type names of this form in the CREATE FUNCTION command.
--
--
-- Character string manipulation
--
--
-- Compatibility functions for pre-v7.0.
-- These should be applied to pre-v7.0 databases
-- when using the v7.0 ODBC driver.
--
CREATE FUNCTION char_length(text)
RETURNS integer
AS 'SELECT length(CAST($1 AS text))'
LANGUAGE 'SQL';
CREATE FUNCTION pow(float8)
RETURNS float8
AS 'SELECT dpow($1)'
LANGUAGE 'SQL';
--
-- Extensions for ODBC compliance in v7.0.
-- In the current driver, ODBC functions must map directly into a
-- Postgres function. So in some cases we must create a compatible
-- function.
--
CREATE FUNCTION ascii(text)
RETURNS integer
AS '_OBJWD_/odbc_DLSUFFIX_', 'ascii'
LANGUAGE 'C';
CREATE FUNCTION ichar(integer)
RETURNS char(1)
AS '_OBJWD_/odbc_DLSUFFIX_', 'ichar'
LANGUAGE 'C';
CREATE FUNCTION insert(text, integer, integer, text)
RETURNS text
AS '_OBJWD_/odbc_DLSUFFIX_', 'insert'
LANGUAGE 'C';
-- replace all occurences of $2 with $3
CREATE FUNCTION replace(text, text, text)
RETURNS text
AS '_OBJWD_/odbc_DLSUFFIX_', 'replace'
LANGUAGE 'C';
-- return the string repeated n times
CREATE FUNCTION repeat(text, integer)
RETURNS text
AS '_OBJWD_/odbc_DLSUFFIX_', 'repeat'
LANGUAGE 'C';
--
-- Mathematical functions for pre-v7.0
--
CREATE FUNCTION dround(float8)
RETURNS float8
AS '_OBJWD_/odbc_DLSUFFIX_', 'dround'
LANGUAGE 'C';
CREATE FUNCTION round(float8)
RETURNS float8
AS 'SELECT dround($1)'
LANGUAGE 'SQL';
--
-- Math functions present in backend, but not in catalog for v7.0
--
CREATE FUNCTION acos(float8)
RETURNS float8
AS '_OBJWD_/odbc_DLSUFFIX_', 'dacos'
LANGUAGE 'C';
CREATE FUNCTION asin(float8)
RETURNS float8
AS '_OBJWD_/odbc_DLSUFFIX_', 'dasin'
LANGUAGE 'C';
CREATE FUNCTION atan(float8)
RETURNS float8
AS '_OBJWD_/odbc_DLSUFFIX_', 'datan'
LANGUAGE 'C';
CREATE FUNCTION atan2(float8,float8)
RETURNS float8
AS '_OBJWD_/odbc_DLSUFFIX_', 'datan2'
LANGUAGE 'C';
CREATE FUNCTION cos(float8)
RETURNS float8
AS '_OBJWD_/odbc_DLSUFFIX_', 'dcos'
LANGUAGE 'C';
CREATE FUNCTION cot(float8)
RETURNS float8
AS '_OBJWD_/odbc_DLSUFFIX_', 'dcot'
LANGUAGE 'C';
CREATE FUNCTION sin(float8)
RETURNS float8
AS '_OBJWD_/odbc_DLSUFFIX_', 'dsin'
LANGUAGE 'C';
CREATE FUNCTION dtan(float8)
RETURNS float8
AS '_OBJWD_/odbc_DLSUFFIX_', 'dtan'
LANGUAGE 'C';
CREATE FUNCTION degrees(float8)
RETURNS float8
AS '_OBJWD_/odbc_DLSUFFIX_', 'degrees'
LANGUAGE 'C';
CREATE FUNCTION pi()
RETURNS float8
AS '_OBJWD_/odbc_DLSUFFIX_', 'dpi'
LANGUAGE 'C';
CREATE FUNCTION radians(float8)
RETURNS float8
AS '_OBJWD_/odbc_DLSUFFIX_', 'radians'
LANGUAGE 'C';
-- random number generator currently requires RAND_MAX be available
CREATE FUNCTION random()
RETURNS float8
AS '_OBJWD_/odbc_DLSUFFIX_', 'drandom'
LANGUAGE 'C';
CREATE FUNCTION truncate(numeric,integer)
RETURNS numeric
AS 'SELECT trunc($1, $2)'
LANGUAGE 'SQL';
--
-- Date/time functions for v7.0
--
CREATE FUNCTION interval_mul(interval,float8)
RETURNS interval
AS '_OBJWD_/odbc_DLSUFFIX_'
LANGUAGE 'C';
CREATE OPERATOR * (
LEFTARG = interval,
RIGHTARG = float8,
PROCEDURE = interval_mul
);
contrib/odbc/odbc.c deleted 100644 → 0
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#include "postgres.h"
#include <stdlib.h>
#include <ctype.h>
#include <errno.h>
#include <float.h> /* faked on sunos4 */
#include <math.h>
#include <limits.h>
#include "fmgr.h"
#include "utils/timestamp.h"
#include "utils/builtins.h"
int4 ascii(text *string);
text *ichar(int4 cvalue);
text *repeat(text *string, int4 count);
Interval *interval_mul(Interval *span1, float8 *arg2);
float64 dasin(float64 arg1);
float64 datan(float64 arg1);
float64 datan2(float64 arg1, float64 arg2);
float64 dcos(float64 arg1);
float64 dcot(float64 arg1);
float64 dsin(float64 arg1);
float64 dtan(float64 arg1);
float64 degrees(float64 arg1);
float64 dpi(void);
float64 radians(float64 arg1);
float64 drandom(void);
void setseed(int32 seed);
int4
ascii(text *string)
{
if (!PointerIsValid(string))
return 0;
if (VARSIZE(string) <= VARHDRSZ)
return 0;
return ((int) *(VARDATA(string)));
} /* ascii() */
text *
ichar(int4 cvalue)
{
text *result;
result = (text *) palloc(VARHDRSZ + 1);
VARSIZE(result) = VARHDRSZ + 1;
*VARDATA(result) = (char) cvalue;
return result;
} /* ichar() */
text *
repeat(text *string, int4 count)
{
text *result;
int slen, tlen;
int i;
char *cp;
if (count < 0)
count = 0;
slen = (VARSIZE(string)-VARHDRSZ);
tlen = (VARHDRSZ + (count * slen));
result = (text *) palloc(tlen);
VARSIZE(result) = tlen;
cp = VARDATA(result);
for (i = 0; i < count; i++)
{
memcpy(cp, VARDATA(string), slen);
cp += slen;
}
return result;
} /* ichar() */
Interval *
interval_mul(Interval *span1, float8 *arg2)
{
Interval *result;
double months;
if ((!PointerIsValid(span1)) || (!PointerIsValid(arg2)))
return NULL;
if (!PointerIsValid(result = palloc(sizeof(Interval))))
elog(ERROR, "Memory allocation failed, can't divide intervals");
months = (span1->month * *arg2);
result->month = rint(months);
result->time = JROUND(span1->time * *arg2);
result->time += JROUND((months - result->month) * 30);
return result;
} /* interval_mul() */
/*
* dasin - returns a pointer to the arcsin of arg1 (radians)
*/
float64
dasin(float64 arg1)
{
float64 result;
double tmp;
if (!PointerIsValid(arg1))
return (float64) NULL;
result = (float64) palloc(sizeof(float64data));
tmp = *arg1;
errno = 0;
*result = (float64data) asin(tmp);
if (errno != 0
#ifdef HAVE_FINITE
|| !finite(*result)
#endif
)
elog(ERROR, "dasin(%f) input is out of range", *arg1);
CheckFloat8Val(*result);
return result;
} /* dasin() */
/*
* datan - returns a pointer to the arctan of arg1 (radians)
*/
float64
datan(float64 arg1)
{
float64 result;
double tmp;
if (!PointerIsValid(arg1))
return (float64) NULL;
result = (float64) palloc(sizeof(float64data));
tmp = *arg1;
errno = 0;
*result = (float64data) atan(tmp);
if (errno != 0
#ifdef HAVE_FINITE
|| !finite(*result)
#endif
)
elog(ERROR, "atan(%f) input is out of range", *arg1);
CheckFloat8Val(*result);
return result;
} /* datan() */
/*
* atan2 - returns a pointer to the arctan2 of arg1 (radians)
*/
float64
datan2(float64 arg1, float64 arg2)
{
float64 result;
if (!PointerIsValid(arg1) || !PointerIsValid(arg1))
return (float64) NULL;
result = (float64) palloc(sizeof(float64data));
errno = 0;
*result = (float64data) atan2(*arg1, *arg2);
if (errno != 0
#ifdef HAVE_FINITE
|| !finite(*result)
#endif
)
elog(ERROR, "atan2(%f,%f) input is out of range", *arg1, *arg2);
CheckFloat8Val(*result);
return result;
} /* datan2() */
/*
* dcos - returns a pointer to the cosine of arg1 (radians)
*/
float64
dcos(float64 arg1)
{
float64 result;
double tmp;
if (!PointerIsValid(arg1))
return (float64) NULL;
result = (float64) palloc(sizeof(float64data));
tmp = *arg1;
errno = 0;
*result = (float64data) cos(tmp);
if (errno != 0
#ifdef HAVE_FINITE
|| !finite(*result)
#endif
)
elog(ERROR, "dcos(%f) input is out of range", *arg1);
CheckFloat8Val(*result);
return result;
} /* dcos() */
/*
* dcot - returns a pointer to the cotangent of arg1 (radians)
*/
float64
dcot(float64 arg1)
{
float64 result;
double tmp;
if (!PointerIsValid(arg1))
return (float64) NULL;
result = (float64) palloc(sizeof(float64data));
tmp = *arg1;
errno = 0;
*result = (float64data) tan(tmp);
if ((errno != 0) || (*result == 0.0)
#ifdef HAVE_FINITE
|| !finite(*result)
#endif
)
elog(ERROR, "dcot(%f) input is out of range", *arg1);
*result = 1.0/(*result);
CheckFloat8Val(*result);
return result;
} /* dcot() */
/*
* dsin - returns a pointer to the sine of arg1 (radians)
*/
float64
dsin(float64 arg1)
{
float64 result;
double tmp;
if (!PointerIsValid(arg1))
return (float64) NULL;
result = (float64) palloc(sizeof(float64data));
tmp = *arg1;
errno = 0;
*result = (float64data) sin(tmp);
if (errno != 0
#ifdef HAVE_FINITE
|| !finite(*result)
#endif
)
elog(ERROR, "dsin(%f) input is out of range", *arg1);
CheckFloat8Val(*result);
return result;
} /* dsin() */
/*
* dtan - returns a pointer to the tangent of arg1 (radians)
*/
float64
dtan(float64 arg1)
{
float64 result;
double tmp;
if (!PointerIsValid(arg1))
return (float64) NULL;
result = (float64) palloc(sizeof(float64data));
tmp = *arg1;
errno = 0;
*result = (float64data) tan(tmp);
if (errno != 0
#ifdef HAVE_FINITE
|| !finite(*result)
#endif
)
elog(ERROR, "dtan(%f) input is out of range", *arg1);
CheckFloat8Val(*result);
return result;
} /* dtan() */
#ifndef M_PI
/* from my RH5.2 gcc math.h file - thomas 2000-04-03 */
#define M_PI 3.14159265358979323846
#endif
/*
* degrees - returns a pointer to degrees converted from radians
*/
float64
degrees(float64 arg1)
{
float64 result;
if (!arg1)
return (float64) NULL;
result = (float64) palloc(sizeof(float64data));
*result = ((*arg1) * (180.0 / M_PI));
CheckFloat8Val(*result);
return result;
} /* degrees() */
/*
* dpi - returns a pointer to degrees converted to radians
*/
float64
dpi(void)
{
float64 result;
result = (float64) palloc(sizeof(float64data));
*result = (M_PI);
return result;
} /* dpi() */
/*
* radians - returns a pointer to radians converted from degrees
*/
float64
radians(float64 arg1)
{
float64 result;
if (!arg1)
return (float64) NULL;
result = (float64) palloc(sizeof(float64data));
*result = ((*arg1) * (M_PI / 180.0));
CheckFloat8Val(*result);
return result;
} /* radians() */
#ifdef RAND_MAX
/*
* drandom - returns a random number
*/
float64
drandom(void)
{
float64 result;
result = (float64) palloc(sizeof(float64data));
/* result 0.0-1.0 */
*result = (((double)rand()) / RAND_MAX);
CheckFloat8Val(*result);
return result;
} /* drandom() */
/*
* setseed - set seed for the random number generator
*/
void
setseed(int32 seed)
{
srand(seed);
return;
} /* setseed() */
#endif
doc/src/sgml/ecpg.sgml
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<!--
$Header: /cvsroot/pgsql/doc/src/sgml/ecpg.sgml,v 1.15 2000/08/23 05:59:01 thomas Exp $
$Header: /cvsroot/pgsql/doc/src/sgml/ecpg.sgml,v 1.16 2000/09/18 20:11:36 petere Exp $
-->
<chapter>
......@@ -31,9 +31,9 @@ $Header: /cvsroot/pgsql/doc/src/sgml/ecpg.sgml,v 1.15 2000/08/23 05:59:01 thomas
<para>
This describes an embedded <acronym>SQL</acronym> in <acronym>C</acronym>
package for <productname>Postgres</productname>.
It is written by <ulink url="mailto:linus@epact.se">Linus Tolke</ulink>
and <ulink url="mailto:meskes@debian.org">Michael Meskes</ulink>.
The package is installed with the <productname>Postgres</> distribution.
<note>
<para>
......@@ -503,17 +503,6 @@ struct sqlca
</para>
</sect1>
<sect1>
<title>Installation</title>
<para>
Since version 0.5 <application>ecpg</application> is distributed
together with <productname>Postgres</productname>. So you
should get your precompiler, libraries and header files compiled and
installed by default as a part of your installation.
</para>
</sect1>
<sect1>
<title>For the Developer</title>
......
doc/src/sgml/geqo.sgml
+ 2
− 2
View file @ 2acdef18
<!--
$Header: /cvsroot/pgsql/doc/src/sgml/geqo.sgml,v 1.11 2000/08/23 05:59:02 thomas Exp $
$Header: /cvsroot/pgsql/doc/src/sgml/geqo.sgml,v 1.12 2000/09/18 20:11:37 petere Exp $
Genetic Optimizer
-->
......@@ -233,7 +233,7 @@ P''(t) generation of descendants at a time t
<sect1>
<title>Future Implementation Tasks for
<productname>ame>Post</productname>ame> <acronym>GEQO</acronym></title>
<productname>PostgreSQL</> <acronym>GEQO</acronym></title>
<sect2>
<title>Basic Improvements</title>
......
doc/src/sgml/odbc.sgml
+ 142
− 487
View file @ 2acdef18
<!--
$Header: /cvsroot/pgsql/doc/src/sgml/Attic/odbc.sgml,v 1.16 2000/08/29 20:02:07 momjian Exp $
$Header: /cvsroot/pgsql/doc/src/sgml/Attic/odbc.sgml,v 1.17 2000/09/18 20:11:37 petere Exp $
-->
<chapter id="odbc">
......@@ -70,496 +70,69 @@ $Header: /cvsroot/pgsql/doc/src/sgml/Attic/odbc.sgml,v 1.16 2000/08/29 20:02:07
same calls and the back end data source would look the same (to the Windows
app).
</para>
<!--
<para>
<ulink url="http://www.insightdist.com/">Insight Distributors</ulink>
provides active and ongoing
support for the core <productname>psqlODBC</productname> distribution.
They provide a
<ulink url="http://www.insightdist.com/psqlodbc/"><acronym>FAQ</acronym></ulink>,
ongoing development on the code base, and actively participate on the
<ulink url="mailto:interfaces@postgresql.org">interfaces mailing list</ulink>.
</para>
-->
</sect1>
<sect1>
<title><productname>Windows</productname> Applications</title>
<title>Installation</title>
<para>
In the real world, differences in drivers and the level of
<acronym>ODBC</acronym> support
lessens the potential of <acronym>ODBC</acronym>:
<itemizedlist spacing="compact" mark="bullet">
<listitem>
<para>
Access, Delphi, and Visual Basic all support <acronym>ODBC</acronym> directly.
</para>
</listitem>
<listitem>
<para>
Under C++, such as Visual C++,
you can use the C++ <acronym>ODBC</acronym> <acronym>API</acronym>.
</para>
</listitem>
<listitem>
<para>
In Visual C++, you can use the CRecordSet class, which wraps the
<acronym>ODBC</acronym> <acronym>API</acronym>
set within an MFC 4.2 class. This is the easiest route if you are doing
Windows C++ development under Windows NT.
</para>
</listitem>
</itemizedlist>
The first thing to note about the <productname>psqlODBC</> driver
(or any <acronym>ODBC</> driver) is that there must exist a
<firstterm>driver manager</> on the system where the
<acronym>ODBC</> driver is to be used. There exists a free
<acronym>ODBC</> driver for Unix called <productname>iODBC</>
which can be obtained via <ulink
url="http://www.iodbc.org">http://www.iodbc.org</ulink>.
Instructions for installing <productname>iODBC</> are contained in
the <productname>iODBC</> distribution. Having said that, any
driver manager that you can find for your platform should support
the <productname>psqlODBC</> driver, or any other <acronym>ODBC</>
driver for that matter.
</para>
<sect2>
<title>Writing Applications</title>
<para>
<quote>
If I write an application for <productname>Postgres</productname>
can I write it using <acronym>ODBC</acronym> calls
to the <productname>Postgres</productname> server,
or is that only when another database program
like MS SQL Server or Access needs to access the data?
</quote>
</para>
<para>
The <acronym>ODBC</acronym> <acronym>API</acronym>
is the way to go.
For <productname>Visual C++</productname> coding you can find out more at
Microsoft's web site or in your <productname>VC++</productname> docs.
</para>
<para>
Visual Basic and the other RAD tools have Recordset objects
that use <acronym>ODBC</acronym>
directly to access data. Using the data-aware controls, you can quickly
link to the <acronym>ODBC</acronym> back end database
(<emphasis>very</emphasis> quickly).
</para>
<para>
Playing around with MS Access will help you sort this out. Try using
<literal>File->Get External Data</literal>.
</para>
<tip>
<para>
You'll have to set up a DSN first.
</para>
</tip>
<!--
<Para>
<Tip>
<Para>
The <productname>Postgres</productname> datetime type will break MS Access.
</Para>
</Tip>
-->
</sect2>
</sect1>
<para>
To install <productname>psqlODBC</> you simply need to supply the
<option>--enable-odbc</> option to the <filename>configure</> script when you are
building the entire <productname>PostgreSQL</> distribution. The library
and header files will then automatically be built and installed with the
rest of the programs. If you forget that option or want to build the ODBC
driver later you can change into the directory <filename>src/interfaces/odbc</>
and do <literal>make</> and <literal>make install</> there.
</para>
<sect1>
<title>Unix Installation</title>
<para>
The installation-wide configuration file <filename>odbcinst.ini</> will be
installed into the directory <filename>/usr/local/pgsql/etc/</>, or equivalent,
depending on what <option>--prefix</> and/or <option>--sysconfdir</> options
you supplied to <filename>configure</>. Since this file can also be shared
between different <acronym>ODBC</> drivers you can also install it in a shared
location. To do that, override the location of this file with the
<option>--with-odbcinst</> option.
</para>
<para>
<productname>ApplixWare</productname> has an
<acronym>ODBC</acronym> database interface
supported on at least some platforms.
<productname>ApplixWare</productname> v4.4.2 has been
demonstrated under Linux with <productname>Postgres</productname> v7.0
using the <productname>psqlODBC</productname>
driver contained in the <productname>Postgres</productname> distribution.
Additionally, you should install the ODBC catalog extensions. That will
provide a number of functions mandated by the ODBC standard that are not
supplied by <productname>PostgreSQL</> by default. The file
<filename>/usr/local/pgsql/share/odbc.sql</> (in the default installation layout)
contains the appropriate definitions, which you can install as follows:
<programlisting>
psql -d template1 -f <replaceable>LOCATION</>/odbc.sql
</programlisting>
where specifying <literal>template1</literal> as the target
database will ensure that all subsequent new databases will
have these same definitions.
</para>
<sect2>
<title>Building the Driver</title>
<para>
The first thing
to note about the <productname>psqlODBC</productname> driver
(or any <acronym>ODBC</acronym> driver) is that there must
exist a driver manager on the system where
the <acronym>ODBC</acronym> driver is to be
used. There exists a freeware <acronym>ODBC</acronym> driver for Unix
called <productname>iodbc</productname> which
can be obtained from various locations on the Net, including at
<ulink url="http://www.as220.org/FreeODBC/iodbc-2.12.shar.Z">AS200</ulink>.
Instructions for installing <productname>iodbc</productname>
are beyond the scope of this
document, but there is a <filename>README</filename>
that can be found inside the <productname>iodbc</productname> compressed
.shar file that should explain how to get it up and running.
</para>
<para>
Having said that, any driver manager that you can find for your platform
should support the <productname>psqlODBC</productname> driver
or any <acronym>ODBC</acronym> driver.
</para>
<para>
The Unix configuration files for <productname>psqlODBC</productname>
have recently been extensively
reworked to allow for easy building on supported platforms as
well as to allow for support of other Unix platforms in the future.
The new configuration and build files for the driver should make it
a simple process to build the driver on the supported platforms. Currently
these include Linux and FreeBSD but we are hoping other users will
contribute the necessary information to quickly expand the number of
platforms for which the driver can be built.
</para>
<para>
There are actually two separate methods to build the driver depending on
how you received it and these differences come down to only where and how to
run <application>configure</application> and <application>make</application>.
The driver can be built in a standalone, client-only installation, or can be
built as a part of the main <productname>Postgres</productname> distribution.
The standalone installation is convenient if you have <acronym>ODBC</acronym>
client applications on multiple, heterogeneous platforms. The integrated
installation is convenient when the target client is the same as the
server, or when the client and server have similar runtime configurations.
</para>
<para>
Specifically if you have received the <productname>psqlODBC</productname>
driver as part of the <productname>Postgres</productname> distribution
(from now on referred to as an "integrated" build) then you will
configure and make the <acronym>ODBC</acronym> driver
from the top level source directory
of the <productname>Postgres</productname> distribution
along with the rest of its libraries.
If you received the driver as a standalone package than you will run
configure and make from the directory in which you unpacked the
driver source.
</para>
<procedure>
<title>Integrated Installation</title>
<para>
This installation procedure is appropriate for an integrated installation.
</para>
<step performance="required">
<para>
Specify the <option>--with-odbc</option>
command-line argument for <application>src/configure</application>:
<programlisting>
% ./configure --with-odbc
% make
</programlisting>
</para>
</step>
<step performance="required">
<para>
Rebuild the <productname>Postgres</productname> distribution:
<programlisting>
% make install
</programlisting>
</para>
</step>
<step performance="optional">
<para>
Install the ODBC catalog extensions available in
<filename>PGROOT/contrib/odbc/odbc.sql</filename>:
<programlisting>
% psql -e template1 &lt; $PGROOT/contrib/odbc/odbc.sql
</programlisting>
where specifying <literal>template1</literal> as the target
database will ensure that all subsequent new databases will
have these same definitions.
</para>
</step>
</procedure>
<title>Supported Platforms</title>
<para>
Once configured, the <acronym>ODBC</acronym> driver will be built and installed
into the areas defined for the other components of the
<productname>Postgres</productname> system. The installation-wide
<acronym>ODBC</acronym> configuration file will be placed into
the top directory of the Postgres target tree (<envar>POSTGRESDIR</envar>).
This can be overridden from the <application>make</application> command-line
as
<programlisting>
% make ODBCINST=<replaceable>filename</replaceable> install
</programlisting>
<productname>psqlODBC</productname> has been built and tested
on <productname>Linux</productname>. There have been reports of success
with FreeBSD and with Solaris. There are no known restrictions
on the basic code for other platforms which already support
<productname>Postgres</productname>.
</para>
<procedure>
<title>Pre-v6.4 Integrated Installation</title>
<para>
If you have a <productname>Postgres</productname> installation older than
v6.4, you have the original source tree available,
and you want to use the newest version of the <acronym>ODBC</acronym>
driver, then you may want to try this form of installation.
</para>
<step performance="required">
<para>
Copy the output tar file to your target system and unpack it into a
clean directory.
</para>
</step>
<step performance="required">
<para>
From the directory containing the
sources, type:
<programlisting>
% ./configure
% make
% make POSTGRESDIR=<replaceable class="parameter">PostgresTopDir</replaceable> install
</programlisting>
</para>
</step>
<step performance="optional">
<para>
If you would like to install components into different trees,
then you can specify various destinations explicitly:
<programlisting>
% make BINDIR=bindir LIBDIR=libdir HEADERDIR=headerdir ODBCINST=instfile install
</programlisting>
</para>
</step>
</procedure>
<procedure>
<title>Standalone Installation</title>
<para>
A standalone installation is not integrated with or built on the normal
<productname>Postgres</productname> distribution. It should be best suited
for building the <acronym>ODBC</acronym> driver for multiple, heterogeneous
clients who do not have a locally-installed <productname>Postgres</productname>
source tree.
</para>
<para>
The default location for libraries and headers
for the standalone installation is <filename>/usr/local/lib</filename>
and <filename>/usr/local/include/iodbc</filename>, respectively.
There is another system wide configuration file that gets installed
as <filename>/share/odbcinst.ini</filename> (if <filename>/share</filename>
exists) or as <filename>/etc/odbcinst.ini</filename>
(if <filename>/share</filename> does not exist).
</para>
<note>
<para>
Installation of files into <filename>/share</filename>
or <filename>/etc</filename> requires system root privileges.
Most installation steps for <productname>Postgres</productname> do not
have this requirement, and you can choose another destination which
is writable by your non-root <productname>Postgres</productname> superuser
account instead.
</para>
</note>
<step performance="required">
<para>
The standalone installation distribution can be built from the
<productname>Postgres</productname> distribution or may be obtained from
<ulink url="http://www.insightdist.com/psqlodbc">Insight Distributors</ulink>,
the current maintainers of the non-Unix sources.
</para>
<para>
Copy the zip
or gzipped tarfile to an empty directory. If using the zip package
unzip it with the command
<programlisting>
% unzip -a <replaceable>packagename</replaceable>
</programlisting>
The <option>-a</option> option
is necessary to get rid of <acronym>DOS</acronym>
CR/LF pairs in the source files.
</para>
<para>
If you have the gzipped tar package than simply run
<programlisting>
% tar -xzf <replaceable>packagename</replaceable>
</programlisting>
</para>
<substeps>
<step performance="optional">
<para>
To create a tar file for a complete standalone installation
from the main <productname>Postgres</productname> source tree:
</para>
</step>
</substeps>
</step>
<step performance="required">
<para>
Configure the main <productname>Postgres</productname> distribution.
</para>
</step>
<step performance="required">
<para>
Create the tar file:
<programlisting>
% cd interfaces/odbc
% make standalone
</programlisting>
</para>
</step>
<step performance="required">
<para>
Copy the output tar file to your target system. Be sure to transfer as
a binary file if using <application>ftp</application>.
</para>
</step>
<step performance="required">
<para>
Unpack the tar file into a clean
directory.
</para>
</step>
<step performance="required">
<para>
Configure the standalone installation:
<programlisting>
% ./configure
</programlisting>
</para>
<para>
The configuration can be done with options:
<programlisting>
% ./configure --prefix=<replaceable>rootdir</replaceable> --with-odbc=<replaceable>inidir</replaceable>
</programlisting>
where <option>--prefix</option> installs the libraries and headers in
the directories <filename><replaceable>rootdir</replaceable>/lib</filename> and
<filename><replaceable>rootdir</replaceable>/include/iodbc</filename>, and
<option>--with-odbc</option> installs <filename>odbcinst.ini</filename> in the
specified directory.
</para>
<para>
Note that both of these options can also be used from the integrated build
but be aware that <emphasis>when used in the integrated build</emphasis>
<option>--prefix</option> will also apply to the rest of
your <productname>Postgres</productname> installation.
<option>--with-odbc</option> applies only to the configuration file
<filename>odbcinst.ini</filename>.
</para>
</step>
<step performance="required">
<para>
Compile and link the source code:
<programlisting>
% make ODBCINST=<replaceable>instdir</replaceable>
</programlisting>
</para>
<para>
You can also override the default location for installation on the
'make' command line. This only applies to the installation of the
library and header files. Since the driver needs to know the location
of the odbcinst.ini file attempting to override the enviroment variable
that specifies its installation directory will probably cause you
headaches. It is safest simply to allow the driver to install the
odbcinst.ini file in the default directory or the directory you specified
on the './configure' command line with --with-odbc.
</para>
</step>
<!--
This doesn't currently work - thomas 1998-10-19
<tip>
<para>
<envar>ODBCINST</envar> can be specified during configuration or during
the compilation. It is not necessary to do so in both steps.
</tip>
-->
<step performance="required">
<para>
Install the source code:
<programlisting>
% make POSTGRESDIR=<replaceable>targettree</replaceable> install
</programlisting>
</para>
<para>
To override the library and header installation directories separately
you need to pass the correct installation variables on the
<literal>make install</literal> command line. These variables are
<envar>LIBDIR</envar>, <envar>HEADERDIR</envar>
and <envar>ODBCINST</envar>.
Overriding <envar>POSTGRESDIR</envar> on the make command line will cause
<envar>LIBDIR</envar> and <envar>HEADERDIR</envar>
to be rooted at the new directory you specify.
<envar>ODBCINST</envar> is independent of <envar>POSTGRESDIR</envar>.
</para>
<para>
Here is how you would specify the various destinations explicitly:
<programlisting>
% make BINDIR=<replaceable>bindir</replaceable> LIBDIR=<replaceable>libdir</replaceable> HEADERDIR=<replaceable>headerdir</replaceable> install
</programlisting>
</para>
<para>
For example, typing
<programlisting>
% make POSTGRESDIR=/opt/psqlodbc install
</programlisting>
(after you've used
<application>./configure</application> and <application>make</application>)
will cause the libraries and headers to be installed in the directories
<filename>/opt/psqlodbc/lib</filename>
and <filename>/opt/psqlodbc/include/iodbc</filename> respectively.
</para>
<para>
The command
<programlisting>
% make POSTGRESDIR=/opt/psqlodbc HEADERDIR=/usr/local install
</programlisting>
should cause the libraries to be installed in /opt/psqlodbc/lib and
the headers in /usr/local/include/iodbc. If this doesn't work as
expected please contact one of the maintainers.
</para>
</step>
</procedure>
</sect2>
</sect1>
......@@ -584,7 +157,7 @@ $Header: /cvsroot/pgsql/doc/src/sgml/Attic/odbc.sgml,v 1.16 2000/08/29 20:02:07
<literal>[ODBC Data Sources]</literal> and must contain the following entries:
<programlisting>
Driver = <replaceable>POSTGRESDIR</replaceable>/lib/libpsqlodbc.so
Driver = <replaceable>prefix</replaceable>/lib/libpsqlodbc.so
Database=<replaceable>DatabaseName</replaceable>
Servername=localhost
Port=5432
......@@ -647,9 +220,101 @@ InstallDir = /opt/applix/axdata/axshlib
</para>
</sect1>
<sect1>
<title><productname>Windows</productname> Applications</title>
<para>
In the real world, differences in drivers and the level of
<acronym>ODBC</acronym> support
lessens the potential of <acronym>ODBC</acronym>:
<itemizedlist spacing="compact" mark="bullet">
<listitem>
<para>
Access, Delphi, and Visual Basic all support <acronym>ODBC</acronym> directly.
</para>
</listitem>
<listitem>
<para>
Under C++, such as Visual C++,
you can use the C++ <acronym>ODBC</acronym> <acronym>API</acronym>.
</para>
</listitem>
<listitem>
<para>
In Visual C++, you can use the CRecordSet class, which wraps the
<acronym>ODBC</acronym> <acronym>API</acronym>
set within an MFC 4.2 class. This is the easiest route if you are doing
Windows C++ development under Windows NT.
</para>
</listitem>
</itemizedlist>
</para>
<sect2>
<title>Writing Applications</title>
<para>
<quote>
If I write an application for <productname>Postgres</productname>
can I write it using <acronym>ODBC</acronym> calls
to the <productname>Postgres</productname> server,
or is that only when another database program
like MS SQL Server or Access needs to access the data?
</quote>
</para>
<para>
The <acronym>ODBC</acronym> <acronym>API</acronym>
is the way to go.
For <productname>Visual C++</productname> coding you can find out more at
Microsoft's web site or in your <productname>VC++</productname> docs.
</para>
<para>
Visual Basic and the other RAD tools have Recordset objects
that use <acronym>ODBC</acronym>
directly to access data. Using the data-aware controls, you can quickly
link to the <acronym>ODBC</acronym> back end database
(<emphasis>very</emphasis> quickly).
</para>
<para>
Playing around with MS Access will help you sort this out. Try using
<literal>File->Get External Data</literal>.
</para>
<tip>
<para>
You'll have to set up a DSN first.
</para>
</tip>
<!--
<Para>
<Tip>
<Para>
The <productname>Postgres</productname> datetime type will break MS Access.
</Para>
</Tip>
-->
</sect2>
</sect1>
<sect1>
<title>ApplixWare</title>
<para>
<productname>ApplixWare</productname> has an
<acronym>ODBC</acronym> database interface
supported on at least some platforms.
<productname>ApplixWare</productname> 4.4.2 has been
demonstrated under Linux with <productname>Postgres</productname> 7.0
using the <productname>psqlODBC</productname>
driver contained in the <productname>Postgres</productname> distribution.
</para>
<sect2>
<title>Configuration</title>
......@@ -1089,17 +754,7 @@ endmacro
</caution>
</para>
</sect2>
<sect2>
<title>Supported Platforms</title>
<para>
<productname>psqlODBC</productname> has been built and tested
on <productname>Linux</productname>. There have been reports of success
with FreeBSD and with Solaris. There are no known restrictions
on the basic code for other platforms which already support
<productname>Postgres</productname>.
</para>
</sect2>
</sect1>
</chapter>
......
doc/src/sgml/page.sgml
+ 0
− 48
View file @ 2acdef18
......@@ -21,9 +21,6 @@ is assumed to contain 8 bits. In addition, the term
refers to data which is stored in <productname>Postgres</productname> classes.
</para>
<sect1>
<title>Page Structure</title>
<para>
The following table shows how pages in both normal <productname>Postgres</productname> classes
and <productname>Postgres</productname> index
......@@ -176,50 +173,5 @@ itemPointerData
which points to the next piece and the piece itself. The last piece
is handled normally.
</para>
</sect1>
<sect1>
<title>Files</title>
<para>
<variablelist>
<varlistentry>
<term>
<filename>data/</filename>
</term>
<listitem>
<para>
Location of shared (global) database files.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<filename>data/base/</filename>
</term>
<listitem>
<para>
Location of local database files.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</sect1>
<sect1>
<title>Bugs</title>
<para>
The page format may change in the future to provide more efficient
access to large objects.
</para>
<para>
This section contains insufficient detail to be of any assistance in
writing a new access method.
</para>
</sect1>
</chapter>
src/interfaces/odbc/GNUmakefile
+ 11
− 5
View file @ 2acdef18
......@@ -2,7 +2,7 @@
#
# GNUMakefile for psqlodbc (Postgres ODBC driver)
#
# $Header: /cvsroot/pgsql/src/interfaces/odbc/Attic/GNUmakefile,v 1.3 2000/09/17 13:02:51 petere Exp $
# $Header: /cvsroot/pgsql/src/interfaces/odbc/Attic/GNUmakefile,v 1.4 2000/09/18 20:11:37 petere Exp $
#
#-------------------------------------------------------------------------
......@@ -35,21 +35,27 @@ LDFLAGS_SL+= $(LDFLAGS_ODBC)
odbc_headers = isql.h isqlext.h iodbc.h
odbc_includedir = $(includedir)/iodbc
install: all installdirs install-headers install-ini install-lib
install: all installdirs install-headers install-ini install-lib install-data
installdirs:
$(mkinstalldirs) $(DESTDIR)$(odbc_includedir) $(DESTDIR)$(libdir) $(DESTDIR)$(odbcinst_ini_dir)
$(mkinstalldirs) $(DESTDIR)$(odbc_includedir) $(DESTDIR)$(libdir) $(DESTDIR)$(odbcinst_ini_dir) $(DESTDIR)$(datadir)
.PHONY: install-headers
install-headers: $(odbc_headers)
for i in $^; do $(INSTALL_DATA) $$i $(DESTDIR)$(odbc_includedir) || exit 1; done
for i in $^; do $(INSTALL_DATA) $$i $(DESTDIR)$(odbc_includedir)/$$i || exit 1; done
.PHONY: install-ini
install-ini: odbcinst.ini
$(INSTALL_DATA) $< $(DESTDIR)$(odbcinst_ini_dir)
$(INSTALL_DATA) $< $(DESTDIR)$(odbcinst_ini_dir)/$<
.PHONY: install-data
install-data: odbc.sql
$(INSTALL_DATA) $< $(DESTDIR)$(datadir)/$<
uninstall: uninstall-lib
rm -f $(addprefix $(DESTDIR)$(odbc_includedir)/, $(odbc_headers))
rm -f $(DESTDIR)$(datadir)/odbc.sql
# XXX Uninstall the .ini file as well?
clean distclean maintainer-clean: clean-lib
rm -f $(OBJS)
......
contrib/odbc/odbc.sql → src/interfaces/odbc/odbc.sql
+ 3
− 9
View file @ 2acdef18
-- ODBC.sql
--
-- PostgreSQL catalog extensions for ODBC compliance
-- $Header: /cvsroot/pgsql/src/interfaces/odbc/Attic/odbc.sql,v 1.1 2000/09/18 20:11:37 petere Exp $
--
-- Character string manipulation
--
--
-- Extensions for ODBC compliance in v7.0.
-- In the current driver, ODBC functions must map directly into a
-- Postgres function. So in some cases we must create a compatible
-- function.
--
-- truncate on the left
CREATE FUNCTION ltrunc(text, integer)
......@@ -142,4 +137,3 @@ CREATE FUNCTION odbc_user()
RETURNS text
AS 'SELECT CAST(USER AS text)'
LANGUAGE 'SQL';
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