Function AlterTableNamespaceInternal

src/backend/commands/tablecmds.c:20218–20251

* The guts of relocating a table to another namespace: besides moving * the table itself, its dependent objects are relocated to the new schema. */

 * the table itself, its dependent objects are relocated to the new schema.
 */
void
AlterTableNamespaceInternal(Relation rel, Oid oldNspOid, Oid nspOid,
							ObjectAddresses *objsMoved)
{
	Relation	classRel;

	Assert(objsMoved != NULL);

	/* OK, modify the pg_class row and pg_depend entry */
	classRel = table_open(RelationRelationId, RowExclusiveLock);

	AlterRelationNamespaceInternal(classRel, RelationGetRelid(rel), oldNspOid,
								   nspOid, true, objsMoved);

	/* Fix the table's row type too, if it has one */
	if (OidIsValid(rel->rd_rel->reltype))
		AlterTypeNamespaceInternal(rel->rd_rel->reltype,
								   nspOid, false, false, objsMoved);

	/* Fix other dependent stuff */
	if (rel->rd_rel->relkind == RELKIND_RELATION ||
		rel->rd_rel->relkind == RELKIND_DIRECTORY_TABLE ||
		rel->rd_rel->relkind == RELKIND_MATVIEW ||
		rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
	{
		AlterIndexNamespaces(classRel, rel, oldNspOid, nspOid, objsMoved);
		AlterSeqNamespaces(classRel, rel, oldNspOid, nspOid,
						   objsMoved, AccessExclusiveLock);
		AlterConstraintNamespaces(RelationGetRelid(rel), oldNspOid, nspOid,
								  false, objsMoved);
	}

	table_close(classRel, RowExclusiveLock);
}

/*
 * The guts of relocating a relation to another namespace: fix the pg_class