Function getObjectClass

src/backend/catalog/dependency.c:2888–3058

* Determine the class of a given object identified by objectAddress. * * This function is essentially the reverse mapping for the object_classes[] * table. We implement it as a function because the OIDs aren't consecutive. */

 * table.  We implement it as a function because the OIDs aren't consecutive.
 */
ObjectClass
getObjectClass(const ObjectAddress *object)
{
	/* only pg_class entries can have nonzero objectSubId */
	if (object->classId != RelationRelationId &&
		object->objectSubId != 0)
		elog(ERROR, "invalid non-zero objectSubId for object class %u",
			 object->classId);

	switch (object->classId)
	{
		case RelationRelationId:
			/* caller must check objectSubId */
			return OCLASS_CLASS;

		case ProcedureRelationId:
			return OCLASS_PROC;

		case TypeRelationId:
			return OCLASS_TYPE;

		case CastRelationId:
			return OCLASS_CAST;

		case CollationRelationId:
			return OCLASS_COLLATION;

		case ConstraintRelationId:
			return OCLASS_CONSTRAINT;

		case ConversionRelationId:
			return OCLASS_CONVERSION;

		case AttrDefaultRelationId:
			return OCLASS_DEFAULT;

		case LanguageRelationId:
			return OCLASS_LANGUAGE;

		case LargeObjectRelationId:
			return OCLASS_LARGEOBJECT;

		case OperatorRelationId:
			return OCLASS_OPERATOR;

		case OperatorClassRelationId:
			return OCLASS_OPCLASS;

		case OperatorFamilyRelationId:
			return OCLASS_OPFAMILY;

		case AccessMethodRelationId:
			return OCLASS_AM;

		case AccessMethodOperatorRelationId:
			return OCLASS_AMOP;

		case AccessMethodProcedureRelationId: