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A few improvements to analyze and vacuum sections in documentation: add "see

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also" entries for autovacuum in analyze and vacuum reference pages, and
enhance usage of cross-references in the maintenance page.
This commit is contained in:
Alvaro Herrera
2007-10-07 01:16:42 +00:00
parent a3ff937359
commit 2a997a7065
3 changed files with 35 additions and 14 deletions
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22
doc/src/sgml/ref/analyze.sgml
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@@ -1,5 +1,5 @@
<!--
$PostgreSQL: pgsql/doc/src/sgml/ref/analyze.sgml,v 1.22 2007/05/15 19:13:55 neilc Exp $
$PostgreSQL: pgsql/doc/src/sgml/ref/analyze.sgml,v 1.23 2007/10/07 01:16:42 alvherre Exp $
PostgreSQL documentation
-->
@@ -92,7 +92,12 @@ ANALYZE [ VERBOSE ] [ <replaceable class="PARAMETER">table</replaceable> [ ( <re
<title>Notes</title>
<para>
It is a good idea to run <command>ANALYZE</command> periodically, or
In the default <productname>PostgreSQL</productname> configuration,
<xref linkend="autovacuum" endterm="autovacuum-title">
takes care of automatic analyzing of tables when they are first loaded
with data, and as they change throughout regular operation.
When autovacuum is disabled,
it is a good idea to run <command>ANALYZE</command> periodically, or
just after making major changes in the contents of a table. Accurate
statistics will help the planner to choose the most appropriate query
plan, and thereby improve the speed of query processing. A common
@@ -101,7 +106,7 @@ ANALYZE [ VERBOSE ] [ <replaceable class="PARAMETER">table</replaceable> [ ( <re
</para>
<para>
Unlike <command>VACUUM FULL</command>, <command>ANALYZE</command>
<command>ANALYZE</command>
requires only a read lock on the target table, so it can run in
parallel with other activity on the table.
</para>
@@ -168,4 +173,15 @@ ANALYZE [ VERBOSE ] [ <replaceable class="PARAMETER">table</replaceable> [ ( <re
There is no <command>ANALYZE</command> statement in the SQL standard.
</para>
</refsect1>
<refsect1>
<title>See Also</title>
<simplelist type="inline">
<member><xref linkend="sql-vacuum" endterm="sql-vacuum-title"></member>
<member><xref linkend="app-vacuumdb" endterm="app-vacuumdb-title"></member>
<member><xref linkend="runtime-config-resource-vacuum-cost" endterm="runtime-config-resource-vacuum-cost-title"></member>
<member><xref linkend="autovacuum" endterm="autovacuum-title"></member>
</simplelist>
</refsect1>
</refentry>