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Support renaming of tablespaces, and changing the owners of

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aggregates, conversions, functions, operators, operator classes,
schemas, types, and tablespaces.  Fold the existing implementations
of alter domain owner and alter database owner in with these.

Christopher Kings-Lynne
This commit is contained in:
Tom Lane
2004-06-25 21:55:59 +00:00
parent 1621192b11
commit 0adfa2c39d
40 changed files with 1380 additions and 234 deletions
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91
src/backend/commands/opclasscmds.c
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@ -9,7 +9,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/commands/opclasscmds.c,v 1.25 2004/05/26 04:41:11 neilc Exp $
* $PostgreSQL: pgsql/src/backend/commands/opclasscmds.c,v 1.26 2004/06/25 21:55:53 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -871,3 +871,92 @@ RenameOpClass(List *name, const char *access_method, const char *newname)
heap_close(rel, NoLock);
heap_freetuple(tup);
}
/*
* Change opclass owner
*/
void
AlterOpClassOwner(List *name, const char *access_method, AclId newOwnerSysId)
{
Oid opcOid;
Oid amOid;
Oid namespaceOid;
char *schemaname;
char *opcname;
HeapTuple tup;
Relation rel;
Form_pg_opclass opcForm;
amOid = GetSysCacheOid(AMNAME,
CStringGetDatum(access_method),
0, 0, 0);
if (!OidIsValid(amOid))
ereport(ERROR,
(errcode(ERRCODE_UNDEFINED_OBJECT),
errmsg("access method \"%s\" does not exist",
access_method)));
rel = heap_openr(OperatorClassRelationName, RowExclusiveLock);
/*
* Look up the opclass
*/
DeconstructQualifiedName(name, &schemaname, &opcname);
if (schemaname)
{
namespaceOid = LookupExplicitNamespace(schemaname);
tup = SearchSysCacheCopy(CLAAMNAMENSP,
ObjectIdGetDatum(amOid),
PointerGetDatum(opcname),
ObjectIdGetDatum(namespaceOid),
0);
if (!HeapTupleIsValid(tup))
ereport(ERROR,
(errcode(ERRCODE_UNDEFINED_OBJECT),
errmsg("operator class \"%s\" does not exist for access method \"%s\"",
opcname, access_method)));
}
else
{
opcOid = OpclassnameGetOpcid(amOid, opcname);
if (!OidIsValid(opcOid))
ereport(ERROR,
(errcode(ERRCODE_UNDEFINED_OBJECT),
errmsg("operator class \"%s\" does not exist for access method \"%s\"",
opcname, access_method)));
tup = SearchSysCacheCopy(CLAOID,
ObjectIdGetDatum(opcOid),
0, 0, 0);
if (!HeapTupleIsValid(tup)) /* should not happen */
elog(ERROR, "cache lookup failed for opclass %u", opcOid);
namespaceOid = ((Form_pg_opclass) GETSTRUCT(tup))->opcnamespace;
}
opcForm = (Form_pg_opclass) GETSTRUCT(tup);
/*
* If the new owner is the same as the existing owner, consider the
* command to have succeeded. This is for dump restoration purposes.
*/
if (opcForm->opcowner != newOwnerSysId)
{
/* Otherwise, must be superuser to change object ownership */
if (!superuser())
ereport(ERROR,
(errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
errmsg("must be superuser to change owner")));
/* Modify the owner --- okay to scribble on tup because it's a copy */
opcForm->opcowner = newOwnerSysId;
simple_heap_update(rel, &tup->t_self, tup);
CatalogUpdateIndexes(rel, tup);
}
heap_close(rel, NoLock);
heap_freetuple(tup);
}