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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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5
src/backend/nodes/readfuncs.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/nodes/readfuncs.c,v 1.187 2006/03/16 00:31:55 tgl Exp $
* $PostgreSQL: pgsql/src/backend/nodes/readfuncs.c,v 1.188 2006/04/22 01:25:59 tgl Exp $
*
* NOTES
* Path and Plan nodes do not have any readfuncs support, because we
@ -318,9 +318,8 @@ _readParam(void)
{
READ_LOCALS(Param);
READ_INT_FIELD(paramkind);
READ_ENUM_FIELD(paramkind, ParamKind);
READ_INT_FIELD(paramid);
READ_STRING_FIELD(paramname);
READ_OID_FIELD(paramtype);
READ_DONE();