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Simplify ParamListInfo data structure to support only numbered parameters,

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not named ones, and replace linear searches of the list with array indexing.
The named-parameter support has been dead code for many years anyway,
and recent profiling suggests that the searching was costing a noticeable
amount of performance for complex queries.
This commit is contained in:
Tom Lane
2006-04-22 01:26:01 +00:00
parent 0606860a20
commit 2206b498d8
20 changed files with 214 additions and 335 deletions
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4
src/backend/parser/analyze.c
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@ -6,7 +6,7 @@
* Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/backend/parser/analyze.c,v 1.332 2006/03/23 00:19:29 tgl Exp $
* $PostgreSQL: pgsql/src/backend/parser/analyze.c,v 1.333 2006/04/22 01:25:59 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -3205,7 +3205,7 @@ check_parameter_resolution_walker(Node *node,
{
Param *param = (Param *) node;
if (param->paramkind == PARAM_NUM)
if (param->paramkind == PARAM_EXTERN)
{
int paramno = param->paramid;