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Implement a preliminary 'template' facility for procedural languages,

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as per my recent proposal.  For now the template data is hard-wired in
proclang.c --- this should be replaced later by a new shared system
catalog, but we don't want to force initdb during 8.1 beta.  This change
lets us cleanly load existing dump files even if they contain outright
wrong information about a PL's support functions, such as a wrong path
to the shared library or a missing validator function.  Also, we can
revert the recent kluges to make pg_dump dump PL support functions that
are stored in pg_catalog.
While at it, I removed the code in pg_regress that replaced $libdir
with a hardcoded path for temporary installations.  This is no longer
needed given our support for relocatable installations.
This commit is contained in:
Tom Lane
2005-09-05 23:50:49 +00:00
parent e35e6b1c37
commit e0dedd0559
9 changed files with 418 additions and 372 deletions
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27
src/backend/parser/gram.y
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@@ -11,7 +11,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/parser/gram.y,v 2.509 2005/08/24 19:34:12 tgl Exp $
* $PostgreSQL: pgsql/src/backend/parser/gram.y,v 2.510 2005/09/05 23:50:48 tgl Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
@@ -2303,13 +2303,24 @@ IntegerOnly: SignedIconst { $$ = makeInteger($1); };
CreatePLangStmt:
CREATE opt_trusted opt_procedural LANGUAGE ColId_or_Sconst
HANDLER handler_name opt_validator opt_lancompiler
{
CreatePLangStmt *n = makeNode(CreatePLangStmt);
n->plname = $5;
/* parameters are all to be supplied by system */
n->plhandler = NIL;
n->plvalidator = NIL;
n->pltrusted = false;
$$ = (Node *)n;
}
| CREATE opt_trusted opt_procedural LANGUAGE ColId_or_Sconst
HANDLER handler_name opt_validator opt_lancompiler
{
CreatePLangStmt *n = makeNode(CreatePLangStmt);
n->plname = $5;
n->plhandler = $7;
n->plvalidator = $8;
n->pltrusted = $2;
/* LANCOMPILER is now ignored entirely */
$$ = (Node *)n;
}
;
@@ -2328,14 +2339,14 @@ handler_name:
| name attrs { $$ = lcons(makeString($1), $2); }
;
opt_lancompiler:
LANCOMPILER Sconst { $$ = $2; }
| /*EMPTY*/ { $$ = ""; }
opt_validator:
VALIDATOR handler_name { $$ = $2; }
| /*EMPTY*/ { $$ = NIL; }
;
opt_validator:
VALIDATOR handler_name { $$ = $2; }
| /*EMPTY*/ { $$ = NULL; }
opt_lancompiler:
LANCOMPILER Sconst { $$ = $2; }
| /*EMPTY*/ { $$ = NULL; }
;
DropPLangStmt: