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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2002-11-21 00:42:20 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2002-11-21 00:42:20 +0000 |
| commit | 6c1d4662afc6344ea7d98b5d1b248214ea0c7635 (patch) | |
| tree | e6b29fb9ae4aeff58eb35947255375d2085bc709 /doc/src | |
| parent | 2676e11fdffb3ea1c56de9e22be4fb80b902f7fa (diff) | |
| download | postgresql-6c1d4662afc6344ea7d98b5d1b248214ea0c7635.tar.gz postgresql-6c1d4662afc6344ea7d98b5d1b248214ea0c7635.zip | |
Finish implementation of hashed aggregation. Add enable_hashagg GUC
parameter to allow it to be forced off for comparison purposes.
Add ORDER BY clauses to a bunch of regression test queries that will
otherwise produce randomly-ordered output in the new regime.
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/sgml/runtime.sgml | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index 5083965b514..70b29118a22 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1,5 +1,5 @@ <!-- -$Header: /cvsroot/pgsql/doc/src/sgml/runtime.sgml,v 1.156 2002/11/15 03:22:30 momjian Exp $ +$Header: /cvsroot/pgsql/doc/src/sgml/runtime.sgml,v 1.157 2002/11/21 00:42:18 tgl Exp $ --> <Chapter Id="runtime"> @@ -671,6 +671,17 @@ env PGOPTIONS='-c geqo=off' psql </varlistentry> <varlistentry> + <term><varname>ENABLE_HASHAGG</varname> (<type>boolean</type>)</term> + <listitem> + <para> + Enables or disables the query planner's use of hashed aggregation + plan types. The default is on. This is used for debugging the query + planner. + </para> + </listitem> + </varlistentry> + + <varlistentry> <term><varname>ENABLE_HASHJOIN</varname> (<type>boolean</type>)</term> <listitem> <para> |