From 1aa4a37f6a80e9707993f4a4796856ad5e4f04fc Mon Sep 17 00:00:00 2001
From: Bruce Momjian <bruce@momjian.us>
Date: Fri, 11 Oct 2002 05:02:24 +0000
Subject: [PATCH] Add replication, encryption, and cross database FAQ items.
---
doc/FAQ | 34 ++++++++++++++++++++++++++++------
doc/src/FAQ/FAQ.html | 24 +++++++++++++++++++++---
2 files changed, 49 insertions(+), 9 deletions(-)
diff --git a/doc/FAQ b/doc/FAQ
index e74cf8e30a1..196ca309331 100644
--- a/doc/FAQ
+++ b/doc/FAQ
@@ -1,7 +1,7 @@
Frequently Asked Questions (FAQ) for PostgreSQL
- Last updated: Wed Oct 9 23:14:53 EDT 2002
+ Last updated: Fri Oct 11 00:59:31 EDT 2002
Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
@@ -96,6 +96,8 @@
4.25) How do I return multiple rows or columns from a function?
4.26) Why can't I reliably create/drop temporary tables in PL/PgSQL
functions?
+ 4.27) What replication options are available?
+ 4.28) What encryption options are available?
Extending PostgreSQL
@@ -1046,12 +1048,13 @@ SELECT *
4.24) How do I perform queries using multiple databases?
- There is no way to query any database except the current one. Because
- PostgreSQL loads database-specific system catalogs, it is uncertain
- how a cross-database query should even behave.
+ There is no way to query a database other than the current one.
+ Because PostgreSQL loads database-specific system catalogs, it is
+ uncertain how a cross-database query should even behave.
- Of course, a client can make simultaneous connections to different
- databases and merge the information that way.
+ /contrib/dblink allows cross-database queries using function calls. Of
+ course, a client can make simultaneous connections to different
+ databases and merge the results on the client side.
4.25) How do I return multiple rows or columns from a function?
@@ -1070,6 +1073,25 @@ SELECT *
the old temporary table. The solution is to use EXECUTE for temporary
table access in PL/PgSQL. This will cause the query to be reparsed
every time.
+
+ 4.27) What replication options are available?
+
+ There are several master/slave replication solutions available. These
+ allow only the master to make database changes and the slave can only
+ do database reads. The bottom of
+ http://gborg.postgresql.org/genpage?replication_research lists them. A
+ multi-master replication solution is being worked on at
+ http://gborg.postgresql.org/project/pgreplication/projdisplay.php.
+
+ 4.27) What encryption options are available?
+
+ * /contrib/pgcrypto contains many encryption functions for use in
+ SQL queries.
+ * The only way to encrypt transmission from the client to the server
+ is by using hostssl in pg_hba.conf.
+ * Database user passwords are automatically encrypted when stored in
+ version 7.3. In previous versions, you must enable
+ password_encryption in postgresql.conf.
_________________________________________________________________
Extending PostgreSQL
diff --git a/doc/src/FAQ/FAQ.html b/doc/src/FAQ/FAQ.html
index a78c4167896..a412b67fa25 100644
--- a/doc/src/FAQ/FAQ.html
+++ b/doc/src/FAQ/FAQ.html
@@ -14,7 +14,7 @@
alink="#0000ff">
<H1>Frequently Asked Questions (FAQ) for PostgreSQL</H1>
- <P>Last updated: Wed Oct 9 23:14:53 EDT 2002</P>
+ <P>Last updated: Fri Oct 11 00:59:31 EDT 2002</P>
<P>Current maintainer: Bruce Momjian (<A href=
"mailto:pgman@candle.pha.pa.us">pgman@candle.pha.pa.us</A>)<BR>
@@ -144,6 +144,7 @@
<A href="#4.26">4.26</A>) Why can't I reliably create/drop
temporary tables in PL/PgSQL functions?<BR>
<A href="#4.27">4.27</A>) What replication options are available?<BR>
+ <A href="#4.28">4.28</A>) What encryption options are available?<BR>
<H2 align="center">Extending PostgreSQL</H2>
@@ -1378,8 +1379,25 @@ BYTEA bytea variable-length byte array (null-byte safe)
<H4><A name="4.27">4.27</A>) What replication options are available?
</H4>
<P>There are several master/slave replication solutions available.
- These allow only one server to make database changes and the slave
- merely allow database reading.
+ These allow only the master to make database changes and the slave
+ can only do database reads. The bottom of <a
+ href="http://gborg.postgresql.org/genpage?replication_research">
+ http://gborg.postgresql.org/genpage?replication_research</a> lists
+ them. A multi-master replication solution is being worked on at <a
+ href="http://gborg.postgresql.org/project/pgreplication/projdisplay.
+ php">http://gborg.postgresql.org/project/pgreplication/projdisplay.php</a>.</P>
+
+ <H4><A name="4.27">4.27</A>) What encryption options are available?
+ </H4>
+ <UL>
+ <LI><I>/contrib/pgcrypto</I> contains many encryption functions for
+ use in <SMALL>SQL</SMALL> queries.</LI>
+ <LI>The only way to encrypt transmission from the client to the
+ server is by using <I>hostssl</I> in <I>pg_hba.conf</I>.</LI>
+ <LI>Database user passwords are automatically encrypted when stored
+ in version 7.3. In previous versions, you must enable
+ <I>password_encryption</I> in <I>postgresql.conf</I>.</LI>
+ </UL>
<HR>
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