Function StoreCatalogInheritance1

src/backend/commands/tablecmds.c:3813–3850

* Make catalog entries showing relationId as being an inheritance child * of parentOid. inhRelation is the already-opened pg_inherits catalog. */

 * of parentOid.  inhRelation is the already-opened pg_inherits catalog.
 */
static void
StoreCatalogInheritance1(Oid relationId, Oid parentOid,
						 int32 seqNumber, Relation inhRelation,
						 bool child_is_partition)
{
	ObjectAddress childobject,
				parentobject;

	/* store the pg_inherits row */
	StoreSingleInheritance(relationId, parentOid, seqNumber);

	/*
	 * Store a dependency too
	 */
	parentobject.classId = RelationRelationId;
	parentobject.objectId = parentOid;
	parentobject.objectSubId = 0;
	childobject.classId = RelationRelationId;
	childobject.objectId = relationId;
	childobject.objectSubId = 0;

	recordDependencyOn(&childobject, &parentobject,
					   child_dependency_type(child_is_partition));

	/*
	 * Post creation hook of this inheritance. Since object_access_hook
	 * doesn't take multiple object identifiers, we relay oid of parent
	 * relation using auxiliary_id argument.
	 */
	InvokeObjectPostAlterHookArg(InheritsRelationId,
								 relationId, 0,
								 parentOid, false);

	/*
	 * Mark the parent as having subclasses.
	 */
	SetRelationHasSubclass(parentOid, true);
}

/*
 * Look for an existing schema entry with the given name.