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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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3
src/backend/nodes/copyfuncs.c
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@@ -15,7 +15,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/nodes/copyfuncs.c,v 1.333 2006/04/15 17:45:34 tgl Exp $
* $PostgreSQL: pgsql/src/backend/nodes/copyfuncs.c,v 1.334 2006/04/22 01:25:58 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -729,7 +729,6 @@ _copyParam(Param *from)
COPY_SCALAR_FIELD(paramkind);
COPY_SCALAR_FIELD(paramid);
COPY_STRING_FIELD(paramname);
COPY_SCALAR_FIELD(paramtype);
return newnode;