Hello,
following this old discussion:
http://archives.postgresql.org/pgsql-patches/2008-03/msg00402.php
i modifies the patch to use the "CREATE [OR REPLACE] LANGUAGE" syntax.
If the patch is ok, i will add the documentation too.
Kind regards
--
Andreas 'ads' Scherbaum
German PostgreSQL User Group
European PostgreSQL User Group - Board of Directors
Volunteer Regional Contact, Germany - PostgreSQL Project
PGDay.eu 2009 in Paris, Nov. 6/7, http://www.pgday.eu/
Index: src/backend/commands/proclang.c
===================================================================
RCS file: /projects/cvsroot/pgsql/src/backend/commands/proclang.c,v
retrieving revision 1.87
diff -r1.87 proclang.c
84,86c84,94
< ereport(ERROR,
< (errcode(ERRCODE_DUPLICATE_OBJECT),
< errmsg("language \"%s\" already exists", languageName)));
---
> if (!stmt->replace)
> ereport(ERROR,
> (errcode(ERRCODE_DUPLICATE_OBJECT),
> errmsg("language \"%s\" already exists", languageName)));
> else
> {
> ereport(NOTICE,
> (errmsg("language \"%s\" already exists, skipping", languageName)));
> return;
> }
>
Index: src/backend/parser/gram.y
===================================================================
RCS file: /projects/cvsroot/pgsql/src/backend/parser/gram.y,v
retrieving revision 2.679
diff -r2.679 gram.y
2768c2768
< CREATE opt_trusted opt_procedural LANGUAGE ColId_or_Sconst
---
> CREATE opt_or_replace opt_trusted opt_procedural LANGUAGE ColId_or_Sconst
2771c2771,2772
< n->plname = $5;
---
> n->replace = $2;
> n->plname = $6;
2779c2780
< | CREATE opt_trusted opt_procedural LANGUAGE ColId_or_Sconst
---
> | CREATE opt_or_replace opt_trusted opt_procedural LANGUAGE ColId_or_Sconst
2783,2787c2784,2789
< n->plname = $5;
< n->plhandler = $7;
< n->plinline = $8;
< n->plvalidator = $9;
< n->pltrusted = $2;
---
> n->replace = $2;
> n->plname = $6;
> n->plhandler = $8;
> n->plinline = $9;
> n->plvalidator = $10;
> n->pltrusted = $3;
Index: src/include/nodes/parsenodes.h
===================================================================
RCS file: /projects/cvsroot/pgsql/src/include/nodes/parsenodes.h,v
retrieving revision 1.402
diff -r1.402 parsenodes.h
1570a1571
> bool replace; /* T => replace if already exists */
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