diff options
| author | Tom Lane <tgl@sss.pgh.pa.us> | 2006-09-06 20:40:48 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2006-09-06 20:40:48 +0000 |
| commit | 5983a1aaa9137367c834e0ff84cd8d4d48b326b2 (patch) | |
| tree | 3425eaf290ad8ee4d565551d45e60df514f67e55 /src/backend/commands/prepare.c | |
| parent | 389870b256bc65f088a7f9a4ea4a88c01242c551 (diff) | |
| download | postgresql-5983a1aaa9137367c834e0ff84cd8d4d48b326b2.tar.gz | |
Change processing of extended-Query mode so that an unnamed statement
that has parameters is always planned afresh for each Bind command,
treating the parameter values as constants in the planner. This removes
the performance penalty formerly often paid for using out-of-line
parameters --- with this definition, the planner can do constant folding,
LIKE optimization, etc. After a suggestion by Andrew@supernews.
Diffstat (limited to 'src/backend/commands/prepare.c')
| -rw-r--r-- | src/backend/commands/prepare.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/backend/commands/prepare.c b/src/backend/commands/prepare.c index 04445cd33e..dc26430671 100644 --- a/src/backend/commands/prepare.c +++ b/src/backend/commands/prepare.c @@ -10,7 +10,7 @@ * Copyright (c) 2002-2006, PostgreSQL Global Development Group * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/commands/prepare.c,v 1.62 2006/08/29 02:11:29 momjian Exp $ + * $PostgreSQL: pgsql/src/backend/commands/prepare.c,v 1.63 2006/09/06 20:40:47 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -261,6 +261,7 @@ EvaluateParams(EState *estate, List *params, List *argtypes) ParamExternData *prm = ¶mLI->params[i]; prm->ptype = lfirst_oid(la); + prm->pflags = 0; prm->value = ExecEvalExprSwitchContext(n, GetPerTupleExprContext(estate), &prm->isnull, |