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Document that analyzing an empty table doesn't update the statistics.

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Per a suggestion from Sergey Konoplev
This commit is contained in:
Robert Haas 2012-01-27 12:13:49 -05:00
parent cf3fff6326
commit db6de5b71e
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doc/src/sgml/ref/analyze.sgml
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@ -190,6 +190,12 @@ ANALYZE [ VERBOSE ] [ <replaceable class="PARAMETER">table</replaceable> [ ( <re
or updated, the inheritance statistics will not be up to date unless you
run <command>ANALYZE</command> manually.
</para>
<para>
If the table being analyzed is completely empty, <command>ANALYZE</command>
will not record new statistics for that table. Any existing statistics
will be retained.
</para>
</refsect1>
<refsect1>