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Changed ExecConstraints() and ExecRelCheck() to cache the constraints

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qualification expression trees in the execution state. Prevents from
memory exhaustion on INSERT, UPDATE or COPY to tables that have CHECK
constraints. Speedup against the variant using freeObject() is more than
factor 2.

Jan
This commit is contained in:
Jan Wieck
1999-02-07 16:17:14 +00:00
parent dd4a357dc9
commit ef590e101e
4 changed files with 27 additions and 14 deletions
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3
src/include/nodes/execnodes.h
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@ -6,7 +6,7 @@
*
* Copyright (c) 1994, Regents of the University of California
*
* $Id: execnodes.h,v 1.22 1999/01/29 09:23:13 vadim Exp $
* $Id: execnodes.h,v 1.23 1999/02/07 16:17:14 wieck Exp $
*
*-------------------------------------------------------------------------
*/
@ -199,6 +199,7 @@ typedef struct EState
Snapshot es_snapshot;
List *es_range_table;
RelationInfo *es_result_relation_info;
List **es_result_relation_constraints;
Relation es_into_relation_descriptor;
ParamListInfo es_param_list_info;
ParamExecData *es_param_exec_vals; /* this is for subselects */