Commit a676d7f6 authored by Bruce Momjian's avatar Bruce Momjian

More 8.2 release item reordering.

parent cf90c54b
<!-- $PostgreSQL: pgsql/doc/src/sgml/release.sgml,v 1.440 2006/09/19 02:08:30 momjian Exp $ --> <!-- $PostgreSQL: pgsql/doc/src/sgml/release.sgml,v 1.441 2006/09/19 02:25:13 momjian Exp $ -->
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Typical markup: Typical markup:
...@@ -340,117 +340,117 @@ For new features, add links to the documentation sections. ...@@ -340,117 +340,117 @@ For new features, add links to the documentation sections.
<listitem> <listitem>
<para> <para>
Reduce locking requirements of sequential scans (Qingqing Increase default values for <envar>shared_buffers</> and
Zhou) <envar>max_fsm_pages</>(Andrew)
</para> </para>
</listitem> </listitem>
<listitem> <listitem>
<para> <para>
Improve subtransaction performance (Alvaro, Itagaki Takahiro, Improve sorting speed and reduce memory usage (Simon, Tom)
Tom)
</para> </para>
</listitem> </listitem>
<listitem> <listitem>
<para> <para>
Improve locking performance by breaking locks into sections Improve subtransaction performance (Alvaro, Itagaki Takahiro,
(Tom) Tom)
</para> </para>
</listitem>
<listitem>
<para> <para>
This allows locking to be more fine-grained, reducing Improve <command>COPY</> performance (Alon Goldshuv, Tom)
contention.
</para> </para>
</listitem> </listitem>
<listitem> <listitem>
<para> <para>
Allow the planner to re-order <literal>OUTER JOIN</>s when Add <literal>FILLFACTOR</> to table and index creation
possible (Tom) (ITAGAKI Takahiro)
</para> </para>
<para> <para>
This makes a considerable difference for queries involving This adds extra free space to each heap or index page,
multiple outer joins. allowing improved performance as the database grows. This
is particularly valuable to maintain <command>CLUSTER</>ing.
</para> </para>
</listitem> </listitem>
<listitem> <listitem>
<para> <para>
Improve planning of joins to inherited tables and <literal>UNION Improve locking performance by breaking locks into sections
ALL</> views (Tom) (Tom)
</para>
<para>
This allows locking to be more fine-grained, reducing
contention.
</para> </para>
</listitem> </listitem>
<listitem> <listitem>
<para> <para>
Increase default values for <envar>shared_buffers</> and Reduce locking requirements of sequential scans (Qingqing
<envar>max_fsm_pages</>(Andrew) Zhou)
</para> </para>
</listitem> </listitem>
<listitem> <listitem>
<para> <para>
Improve the optimizer statistics used by <literal>LIKE</>, Reduce locking required for database creation and destruction
<literal>ILIKE</>, and regular expression operations (Tom) (Tom)
</para> </para>
</listitem> </listitem>
<listitem> <listitem>
<para> <para>
Allow constraint exclusion to be applied to inherited Allow the planner to re-order <literal>OUTER JOIN</>s when
<command>UPDATE</>/<command>DELETE</> queries (Tom) possible (Tom)
</para> </para>
<para> <para>
<command>SELECT</> already honored constraint exclusion. This makes a considerable difference for queries involving
multiple outer joins.
</para> </para>
</listitem> </listitem>
<listitem> <listitem>
<para> <para>
Improve sorting speed and reduce memory usage (Simon, Tom) Improve the optimizer statistics used by <literal>LIKE</>,
<literal>ILIKE</>, and regular expression operations (Tom)
</para> </para>
</listitem> </listitem>
<listitem> <listitem>
<para> <para>
<function>MIN()</>/<function>MAX()</> can now use indexes Improve planning of joins to inherited tables and <literal>UNION
in more cases (Tom) ALL</> views (Tom)
</para> </para>
</listitem> </listitem>
<listitem> <listitem>
<para> <para>
Improve concurrency for database creation and destruction Allow constraint exclusion to be applied to inherited
(Tom) <command>UPDATE</>/<command>DELETE</> queries (Tom)
</para> </para>
</listitem>
<listitem>
<para> <para>
Speed up vacuuming of btree indexes (Heikki Linnakangas, <command>SELECT</> already honored constraint exclusion.
Tom)
</para> </para>
</listitem> </listitem>
<listitem> <listitem>
<para> <para>
Improve <command>COPY</> performance (Alon Goldshuv, Tom) <function>MIN()</>/<function>MAX()</> can now use indexes
in more cases (Tom)
</para> </para>
</listitem> </listitem>
<listitem> <listitem>
<para> <para>
Add <literal>FILLFACTOR</> to table and index creation Speed up vacuuming of btree indexes (Heikki Linnakangas,
(ITAGAKI Takahiro) Tom)
</para>
<para>
This adds extra free space to each heap or index page,
allowing improved performance as the database grows. This
is particularly valuable to maintain <command>CLUSTER</>ing.
</para> </para>
</listitem> </listitem>
......
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