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+<!-- $PostgreSQL: pgsql/doc/src/sgml/release.sgml,v 1.548 2007/11/20 01:42:37 momjian Exp $ -->
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Typical markup:
</sect3>
<sect3>
- <title>Server Changes</title>
+ <title>General Server Changes</title>
<itemizedlist>
<listitem>
</para>
</listitem>
- <listitem>
- <para>
- Autovacuum now reports its activity start time in
- <literal>pg_stat_activity</literal> (Tom)
- </para>
- </listitem>
-
<listitem>
<para>
Automatically re-plan cached queries when table
<listitem>
<para>
- Support Security Service Provider Interface (<acronym>SSPI</>) for
- authentication on Windows (Magnus)
+ Add a <varname>temp_tablespaces</varname> parameter to control
+ the tablespaces for temporary tables and files (Jaime Casanova,
+ Albert Cervera, Bernd Helmle)
+ </para>
+
+ <para>
+ This parameter defines a list of tablespaces to be used. This
+ enables spreading the I/O load across multiple tablespaces. A random
+ tablespace is chosen each time a temporary object is created.
+ Temporary files are no longer stored in per-database
+ <filename>pgsql_tmp/</filename> directories but in per-tablespace
+ directories.
</para>
</listitem>
<listitem>
<para>
- Support GSSAPI authentication (Henry Hotz, Magnus)
+ Limit the amount of information reported when a user is dropped
+ (Alvaro)
</para>
<para>
- This should be preferred to native Kerberos authentication because
- GSSAPI is an industry standard.
+ Previously, dropping (or attempting to drop) a user who owned many
+ objects could result in large <literal>NOTICE</literal> or
+ <literal>ERROR</literal> messages listing all these objects; this
+ caused problems for some client applications. The length of the
+ message is now limited, although a full list is still sent to the
+ server log.
</para>
</listitem>
<listitem>
<para>
- Support a global SSL configuration file (Victor Wagner)
+ Place temporary tables' TOAST tables in special schemas named
+ <literal>pg_toast_temp_<replaceable>nnn</></literal> (Tom)
+ </para>
+
+ <para>
+ This allows low-level code to recognize these tables as temporary,
+ which enables various optimizations such as not WAL-logging changes
+ and using local rather than shared buffers for access. This also
+ fixes a bug wherein backends unexpectedly held open file references
+ to temporary TOAST tables.
</para>
</listitem>
<listitem>
<para>
- Add <varname>ssl_ciphers</> parameter to control accepted SSL ciphers
- (Victor Wagner)
+ Fix problem that a constant flow of new connection requests could
+ indefinitely delay the postmaster from completing a shutdown or
+ a crash restart (Tom)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow <command>CREATE INDEX CONCURRENTLY</command> to ignore
+ transactions in other databases (Simon)
</para>
</listitem>
</para>
</listitem>
+ </itemizedlist>
+
+ </sect3>
+
+ <sect3>
+ <title>Server Monitoring</title>
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ Autovacuum now reports its activity start time in
+ <literal>pg_stat_activity</literal> (Tom)
+ </para>
+ </listitem>
+
<listitem>
<para>
Allow server log output in comma-separated value (CSV) format (Arul
</para>
</listitem>
- <listitem>
- <para>
- Change the timestamps recorded in transaction WAL records from
- time_t to TimestampTz representation (Tom)
- </para>
-
- <para>
- This provides sub-second resolution in WAL, which can be useful for
- point-in-time recovery.
- </para>
- </listitem>
-
- <listitem>
- <para>
- New boolean configuration parameter, <varname>archive_mode</>,
- controls archiving (Simon)
- </para>
-
- <para>
- Previously setting <varname>archive_command</> to an empty string
- turned off archiving. Now <varname>archive_mode</> turns archiving
- on and off, independently of <varname>archive_command</>. This is
- useful for stopping archiving temporarily.
- </para>
- </listitem>
-
- <listitem>
- <para>
- Reduce WAL workspace needed by warm standby servers (Simon)
- </para>
-
- <para>
- This change allows a warm standby server to identify the earliest
- still-needed WAL file to the recovery script, allowing automatic removal
- of no-longer-needed WAL files. This is done using <literal>%r</> in
- the <varname>restore_command</varname> parameter of
- <filename>recovery.conf</filename>.
- </para>
- </listitem>
-
<listitem>
<para>
Add <varname>log_restartpoints</varname> to control logging of
</para>
</listitem>
- <listitem>
- <para>
- Add a <varname>temp_tablespaces</varname> parameter to control
- the tablespaces for temporary tables and files (Jaime Casanova,
- Albert Cervera, Bernd Helmle)
- </para>
-
- <para>
- This parameter defines a list of tablespaces to be used. This
- enables spreading the I/O load across multiple tablespaces. A random
- tablespace is chosen each time a temporary object is created.
- Temporary files are no longer stored in per-database
- <filename>pgsql_tmp/</filename> directories but in per-tablespace
- directories.
- </para>
- </listitem>
-
<listitem>
<para>
New system view <literal>pg_stat_bgwriter</literal> displays
</para>
</listitem>
+ </itemizedlist>
+
+ </sect3>
+
+ <sect3>
+ <title>Authentication Changes</title>
+ <itemizedlist>
+
<listitem>
<para>
- Limit the amount of information reported when a user is dropped
- (Alvaro)
+ Support Security Service Provider Interface (<acronym>SSPI</>) for
+ authentication on Windows (Magnus)
</para>
+ </listitem>
+ <listitem>
<para>
- Previously, dropping (or attempting to drop) a user who owned many
- objects could result in large <literal>NOTICE</literal> or
- <literal>ERROR</literal> messages listing all these objects; this
- caused problems for some client applications. The length of the
- message is now limited, although a full list is still sent to the
- server log.
+ Support GSSAPI authentication (Henry Hotz, Magnus)
+ </para>
+
+ <para>
+ This should be preferred to native Kerberos authentication because
+ GSSAPI is an industry standard.
</para>
</listitem>
<listitem>
<para>
- Place temporary tables' TOAST tables in special schemas named
- <literal>pg_toast_temp_<replaceable>nnn</></literal> (Tom)
+ Support a global SSL configuration file (Victor Wagner)
</para>
+ </listitem>
+ <listitem>
<para>
- This allows low-level code to recognize these tables as temporary,
- which enables various optimizations such as not WAL-logging changes
- and using local rather than shared buffers for access. This also
- fixes a bug wherein backends unexpectedly held open file references
- to temporary TOAST tables.
+ Add <varname>ssl_ciphers</> parameter to control accepted SSL ciphers
+ (Victor Wagner)
</para>
</listitem>
<listitem>
<para>
- Fix problem that a constant flow of new connection requests could
- indefinitely delay the postmaster from completing a shutdown or
- a crash restart (Tom)
+ Add a Kerberos realm parameter, <varname>krb_realm</> (Magnus)
</para>
</listitem>
+ </itemizedlist>
+
+ </sect3>
+
+ <sect3>
+ <title>WAL and Continuous Archiving Changes</title>
+ <itemizedlist>
+
<listitem>
<para>
- Allow <command>CREATE INDEX CONCURRENTLY</command> to ignore
- transactions in other databases (Simon)
+ Change the timestamps recorded in transaction WAL records from
+ time_t to TimestampTz representation (Tom)
+ </para>
+
+ <para>
+ This provides sub-second resolution in WAL, which can be useful for
+ point-in-time recovery.
</para>
</listitem>
<listitem>
<para>
- Add a Kerberos realm parameter, <varname>krb_realm</> (Magnus)
+ Reduce WAL disk space needed by warm standby servers (Simon)
+ </para>
+
+ <para>
+ This change allows a warm standby server to pass the name of the earliest
+ still-needed WAL file to the recovery script, allowing automatic removal
+ of no-longer-needed WAL files. This is done using <literal>%r</> in
+ the <varname>restore_command</varname> parameter of
+ <filename>recovery.conf</filename>.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ New boolean configuration parameter, <varname>archive_mode</>,
+ controls archiving (Simon)
+ </para>
+
+ <para>
+ Previously setting <varname>archive_command</> to an empty string
+ turned off archiving. Now <varname>archive_mode</> turns archiving
+ on and off, independently of <varname>archive_command</>. This is
+ useful for stopping archiving temporarily.
</para>
</listitem>
projects / postgresql / commitdiff