Function sepgsql_relation_setattr_extra

contrib/sepgsql/relation.c:720–751

* sepgsql_relation_setattr_extra * * It checks permission of the relation being referenced by extra attributes, * such as pg_index entries. Like core PostgreSQL, sepgsql also does not deal * with such entries as individual "objects", thus, modification of these * entries shall be considered as setting an attribute of the underlying * relation. */

 * relation.
 */
static void
sepgsql_relation_setattr_extra(Relation catalog,
							   Oid catindex_id,
							   Oid extra_oid,
							   AttrNumber anum_relation_id,
							   AttrNumber anum_extra_id)
{
	ScanKeyData skey;
	SysScanDesc sscan;
	HeapTuple	tuple;
	Datum		datum;
	bool		isnull;

	ScanKeyInit(&skey, anum_extra_id,
				BTEqualStrategyNumber, F_OIDEQ,
				ObjectIdGetDatum(extra_oid));

	sscan = systable_beginscan(catalog, catindex_id, true,
							   SnapshotSelf, 1, &skey);
	tuple = systable_getnext(sscan);
	if (!HeapTupleIsValid(tuple))
		elog(ERROR, "could not find tuple for object %u in catalog \"%s\"",
			 extra_oid, RelationGetRelationName(catalog));

	datum = heap_getattr(tuple, anum_relation_id,
						 RelationGetDescr(catalog), &isnull);
	Assert(!isnull);

	sepgsql_relation_setattr(DatumGetObjectId(datum));

	systable_endscan(sscan);
}

/*
 * sepgsql_index_modify