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Create the pg_pltemplate system catalog to hold template information

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for procedural languages.  This replaces the hard-wired table I had
originally proposed as a stopgap solution.  For the moment, the initial
contents only include languages shipped with the core distribution.
This commit is contained in:
Tom Lane
2005-09-08 20:07:42 +00:00
parent c18cabe8ab
commit 48123de717
11 changed files with 311 additions and 93 deletions
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13
src/backend/commands/functioncmds.c
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@ -10,7 +10,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/commands/functioncmds.c,v 1.66 2005/08/22 17:38:20 tgl Exp $
* $PostgreSQL: pgsql/src/backend/commands/functioncmds.c,v 1.67 2005/09/08 20:07:41 tgl Exp $
*
* DESCRIPTION
* These routines take the parse tree and pick out the
@ -44,6 +44,7 @@
#include "catalog/pg_proc.h"
#include "catalog/pg_type.h"
#include "commands/defrem.h"
#include "commands/proclang.h"
#include "miscadmin.h"
#include "optimizer/cost.h"
#include "parser/parse_func.h"
@ -543,17 +544,11 @@ CreateFunction(CreateFunctionStmt *stmt)
PointerGetDatum(languageName),
0, 0, 0);
if (!HeapTupleIsValid(languageTuple))
/* Add any new languages to this list to invoke the hint. */
ereport(ERROR,
(errcode(ERRCODE_UNDEFINED_OBJECT),
errmsg("language \"%s\" does not exist", languageName),
(strcmp(languageName, "plperl") == 0 ||
strcmp(languageName, "plperlu") == 0 ||
strcmp(languageName, "plpgsql") == 0 ||
strcmp(languageName, "plpythonu") == 0 ||
strcmp(languageName, "pltcl") == 0 ||
strcmp(languageName, "pltclu") == 0) ?
errhint("You need to use \"createlang\" to load the language into the database.") : 0));
(PLTemplateExists(languageName) ?
errhint("Use CREATE LANGUAGE to load the language into the database.") : 0)));
languageOid = HeapTupleGetOid(languageTuple);
languageStruct = (Form_pg_language) GETSTRUCT(languageTuple);