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Add support for the CASE statement in the rewrite handling.

Allows (at least some) rules and views.
Still some trouble (crashes) with target CASE columns spanning tables,
 but lots now works.
This commit is contained in:
Thomas G. Lockhart
1998-12-14 00:02:17 +00:00
parent 2b189aa953
commit 4140c2f30e
6 changed files with 250 additions and 13 deletions

View File

@ -7,11 +7,13 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/rewrite/rewriteRemove.c,v 1.19 1998/11/27 19:52:17 vadim Exp $
* $Header: /cvsroot/pgsql/src/backend/rewrite/rewriteRemove.c,v 1.20 1998/12/14 00:02:17 thomas Exp $
*
*-------------------------------------------------------------------------
*/
#include <string.h>
#include "postgres.h"
#include "fmgr.h" /* for F_NAMEEQ */
@ -39,14 +41,14 @@ RewriteGetRuleEventRel(char *rulename)
PointerGetDatum(rulename),
0, 0, 0);
if (!HeapTupleIsValid(htup))
elog(ERROR, "RewriteGetRuleEventRel: rule \"%s\" not found",
rulename);
elog(ERROR, "Rule or view '%s' not found",
((!strncmp(rulename, "_RET", 4))? (rulename+4): rulename));
eventrel = ((Form_pg_rewrite) GETSTRUCT(htup))->ev_class;
htup = SearchSysCacheTuple(RELOID,
PointerGetDatum(eventrel),
0, 0, 0);
if (!HeapTupleIsValid(htup))
elog(ERROR, "RewriteGetRuleEventRel: class %d not found",
elog(ERROR, "Class '%d' not found",
eventrel);
return ((Form_pg_class) GETSTRUCT(htup))->relname.data;
}
@ -94,7 +96,7 @@ RemoveRewriteRule(char *ruleName)
if (!HeapTupleIsValid(tuple))
{
heap_close(RewriteRelation);
elog(ERROR, "No rule with name = '%s' was found.\n", ruleName);
elog(ERROR, "Rule '%s' not found\n", ruleName);
}
/*
@ -110,7 +112,7 @@ RemoveRewriteRule(char *ruleName)
{
/* XXX strange!!! */
pfree(tuple);
elog(ERROR, "RemoveRewriteRule: null event target relation!");
elog(ERROR, "RemoveRewriteRule: internal error; null event target relation!");
}
eventRelationOid = DatumGetObjectId(eventRelationOidDatum);