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ALTER DOMAIN OWNER, from Rod Taylor.

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This commit is contained in:
Tom Lane
2003-01-06 00:31:45 +00:00
parent 1bf1597e3a
commit daec989f6a
6 changed files with 120 additions and 19 deletions
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60
src/backend/commands/typecmds.c
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@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/typecmds.c,v 1.26 2003/01/04 00:46:08 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/typecmds.c,v 1.27 2003/01/06 00:31:44 tgl Exp $
*
* DESCRIPTION
* The "DefineFoo" routines take the parse tree and pick out the
@@ -1673,3 +1673,61 @@ domainAddConstraint(Oid domainOid, Oid domainNamespace, Oid baseTypeOid,
*/
return ccbin;
}
/*
* ALTER DOMAIN .. OWNER TO
*
* Eventually this should allow changing ownership of other kinds of types,
* but some thought must be given to handling complex types. (A table's
* rowtype probably shouldn't be allowed as target, but what of a standalone
* composite type?)
*
* Assumes that permission checks have been completed earlier.
*/
void
AlterTypeOwner(List *names, AclId newOwnerSysId)
{
TypeName *typename;
Oid typeOid;
Relation rel;
HeapTuple tup;
Form_pg_type typTup;
/* Make a TypeName so we can use standard type lookup machinery */
typename = makeNode(TypeName);
typename->names = names;
typename->typmod = -1;
typename->arrayBounds = NIL;
/* Lock the type table */
rel = heap_openr(TypeRelationName, RowExclusiveLock);
/* Use LookupTypeName here so that shell types can be processed (why?) */
typeOid = LookupTypeName(typename);
if (!OidIsValid(typeOid))
elog(ERROR, "Type \"%s\" does not exist",
TypeNameToString(typename));
tup = SearchSysCacheCopy(TYPEOID,
ObjectIdGetDatum(typeOid),
0, 0, 0);
if (!HeapTupleIsValid(tup))
elog(ERROR, "AlterDomain: type \"%s\" does not exist",
TypeNameToString(typename));
typTup = (Form_pg_type) GETSTRUCT(tup);
/* Check that this is actually a domain */
if (typTup->typtype != 'd')
elog(ERROR, "%s is not a domain",
TypeNameToString(typename));
/* Modify the owner --- okay to scribble on typTup because it's a copy */
typTup->typowner = newOwnerSysId;
simple_heap_update(rel, &tup->t_self, tup);
CatalogUpdateIndexes(rel, tup);
/* Clean up */
heap_close(rel, RowExclusiveLock);
}