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Rename SortMem and VacuumMem to work_mem and maintenance_work_mem.

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Make btree index creation and initial validation of foreign-key constraints
use maintenance_work_mem rather than work_mem as their memory limit.
Add some code to guc.c to allow these variables to be referenced by their
old names in SHOW and SET commands, for backwards compatibility.
This commit is contained in:
Tom Lane
2004-02-03 17:34:04 +00:00
parent 39d715bee6
commit 391c3811a2
34 changed files with 269 additions and 188 deletions
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6
src/backend/optimizer/plan/subselect.c
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@@ -7,7 +7,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/optimizer/plan/subselect.c,v 1.87 2004/01/12 22:20:28 tgl Exp $
* $PostgreSQL: pgsql/src/backend/optimizer/plan/subselect.c,v 1.88 2004/02/03 17:34:03 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -614,12 +614,12 @@ subplan_is_hashable(SubLink *slink, SubPlan *node)
return false;
/*
* The estimated size of the subquery result must fit in SortMem. (XXX
* The estimated size of the subquery result must fit in work_mem. (XXX
* what about hashtable overhead?)
*/
subquery_size = node->plan->plan_rows *
(MAXALIGN(node->plan->plan_width) + MAXALIGN(sizeof(HeapTupleData)));
if (subquery_size > SortMem * 1024L)
if (subquery_size > work_mem * 1024L)
return false;
/*