Improve description of constraint_exclusion variable.

This commit is contained in:
Tom Lane 2005-11-04 23:50:30 +00:00
parent 8959e9b9d3
commit 58d6316d50

View File

@ -10,7 +10,7 @@
* Written by Peter Eisentraut <peter_e@gmx.net>.
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.298 2005/11/04 22:18:26 petere Exp $
* $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.299 2005/11/04 23:50:30 tgl Exp $
*
*--------------------------------------------------------------------
*/
@ -464,9 +464,9 @@ static struct config_bool ConfigureNamesBool[] =
},
{
{"constraint_exclusion", PGC_USERSET, QUERY_TUNING_OTHER,
gettext_noop("Enables the planner to use constraints to limit table access."),
gettext_noop("This prevents table access if the table constraints "
"guarantee that table access is not necessary.")
gettext_noop("Enables the planner to use constraints to optimize queries."),
gettext_noop("Child table scans will be skipped if their "
"constraints guarantee that no rows match the query.")
},
&constraint_exclusion,
false, NULL, NULL