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Second phase of committing Rod Taylor's pg_depend/pg_constraint patch.

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pg_relcheck is gone; CHECK, UNIQUE, PRIMARY KEY, and FOREIGN KEY
constraints all have real live entries in pg_constraint.  pg_depend
exists, and RESTRICT/CASCADE options work on most kinds of DROP;
however, pg_depend is not yet very well populated with dependencies.
(Most of the ones that are present at this point just replace formerly
hardwired associations, such as the implicit drop of a relation's pg_type
entry when the relation is dropped.)  Need to add more logic to create
dependency entries, improve pg_dump to dump constraints in place of
indexes and triggers, and add some regression tests.
This commit is contained in:
Tom Lane
2002-07-12 18:43:19 +00:00
parent 791a40f943
commit 7c6df91dda
77 changed files with 4074 additions and 1987 deletions
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25
src/backend/utils/cache/lsyscache.c vendored
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/cache/lsyscache.c,v 1.75 2002/07/06 20:16:36 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/cache/lsyscache.c,v 1.76 2002/07/12 18:43:18 tgl Exp $
*
* NOTES
* Eventually, the index information should go through here, too.
@ -671,6 +671,25 @@ get_relname_relid(const char *relname, Oid relnamespace)
0, 0);
}
/*
* get_system_catalog_relid
* Get the OID of a system catalog identified by name.
*/
Oid
get_system_catalog_relid(const char *catname)
{
Oid relid;
relid = GetSysCacheOid(RELNAMENSP,
PointerGetDatum(catname),
ObjectIdGetDatum(PG_CATALOG_NAMESPACE),
0, 0);
if (!OidIsValid(relid))
elog(ERROR, "get_system_catalog_relid: cannot find %s", catname);
return relid;
}
#ifdef NOT_USED
/*
* get_relnatts
@ -1060,7 +1079,7 @@ getBaseType(Oid typid)
/*
* getBaseTypeTypeMod
* If the given type is a domain, return its base type;
* otherwise return the type's own OID.
* otherwise return the type's own OID. Also return base typmod.
*/
Oid
getBaseTypeTypeMod(Oid typid, int32 *typmod)
@ -1077,7 +1096,7 @@ getBaseTypeTypeMod(Oid typid, int32 *typmod)
ObjectIdGetDatum(typid),
0, 0, 0);
if (!HeapTupleIsValid(tup))
elog(ERROR, "getBaseType: failed to lookup type %u", typid);
elog(ERROR, "getBaseTypeTypeMod: failed to lookup type %u", typid);
typTup = (Form_pg_type) GETSTRUCT(tup);
if (typTup->typtype != 'd')
{