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Update comment about outer joins in description of geqo_threshold.

This commit is contained in:
Tom Lane 2006-01-11 23:14:29 +00:00
parent 416689c866
commit 445144b8c2
1 changed files with 3 additions and 3 deletions
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6
doc/src/sgml/config.sgml
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@ -1,5 +1,5 @@
<!--
$PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.42 2006/01/05 10:07:44 petere Exp $
$PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.43 2006/01/11 23:14:29 tgl Exp $
-->
<chapter Id="runtime-config">
<title>Server Configuration</title>
@ -1853,8 +1853,8 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Windows
<listitem>
<para>
Use genetic query optimization to plan queries with at least
this many <literal>FROM</> items involved. (Note that an outer
<literal>JOIN</> construct counts as only one <literal>FROM</>
this many <literal>FROM</> items involved. (Note that a
<literal>FULL OUTER JOIN</> construct counts as only one <literal>FROM</>
item.) The default is 12. For simpler queries it is usually best
to use the deterministic, exhaustive planner, but for queries with
many tables the deterministic planner takes too long.