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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2009-11-04 22:26:08 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2009-11-04 22:26:08 +0000 |
| commit | 9bedd128d6ed83798004b3c7ddc33f33703ccf23 (patch) | |
| tree | 95a475a5da180f19c69b5bcf2f6e764b1bc69ea7 /src/include/tcop | |
| parent | 48912acc089a6148529f12ab0a75b1bf026f231d (diff) | |
| download | postgresql-9bedd128d6ed83798004b3c7ddc33f33703ccf23.tar.gz | |
Add support for invoking parser callback hooks via SPI and in cached plans.
As proof of concept, modify plpgsql to use the hooks. plpgsql is still
inserting $n symbols textually, but the "back end" of the parsing process now
goes through the ParamRef hook instead of using a fixed parameter-type array,
and then execution only fetches actually-referenced parameters, using a hook
added to ParamListInfo.
Although there's a lot left to be done in plpgsql, this already cures the
"if (TG_OP = 'INSERT' and NEW.foo ...)" problem, as illustrated by the
changed regression test.
Diffstat (limited to 'src/include/tcop')
| -rw-r--r-- | src/include/tcop/tcopprot.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/include/tcop/tcopprot.h b/src/include/tcop/tcopprot.h index b1c8b77bd5..103a22fbc5 100644 --- a/src/include/tcop/tcopprot.h +++ b/src/include/tcop/tcopprot.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/tcop/tcopprot.h,v 1.100 2009/09/01 00:09:42 tgl Exp $ + * $PostgreSQL: pgsql/src/include/tcop/tcopprot.h,v 1.101 2009/11/04 22:26:07 tgl Exp $ * * OLD COMMENTS * This file was created so that other c files could get the two @@ -49,6 +49,10 @@ extern List *pg_parse_and_rewrite(const char *query_string, extern List *pg_parse_query(const char *query_string); extern List *pg_analyze_and_rewrite(Node *parsetree, const char *query_string, Oid *paramTypes, int numParams); +extern List *pg_analyze_and_rewrite_params(Node *parsetree, + const char *query_string, + ParserSetupHook parserSetup, + void *parserSetupArg); extern PlannedStmt *pg_plan_query(Query *querytree, int cursorOptions, ParamListInfo boundParams); extern List *pg_plan_queries(List *querytrees, int cursorOptions, |