BEGIN; INSERT INTO config.upgrade_log (version) VALUES ('0104'); -- Scott McKellar -- Create updatable view CREATE OR REPLACE VIEW query.expr_string AS SELECT id, parenthesize, parent_expr, seq_no, literal FROM query.expression WHERE type = 'xstr'; CREATE OR REPLACE RULE query_expr_string_insert_rule AS ON INSERT TO query.expr_string DO INSTEAD INSERT INTO query.expression ( id, type, parenthesize, parent_expr, seq_no, literal ) VALUES ( COALESCE(NEW.id, NEXTVAL('query.expression_id_seq'::REGCLASS)), 'xstr', COALESCE(NEW.parenthesize, FALSE), NEW.parent_expr, COALESCE(NEW.seq_no, 1), NEW.literal ); CREATE OR REPLACE RULE query_expr_string_update_rule AS ON UPDATE TO query.expr_string DO INSTEAD UPDATE query.expression SET id = NEW.id, parenthesize = NEW.parenthesize, parent_expr = NEW.parent_expr, seq_no = NEW.seq_no, literal = NEW.literal WHERE id = OLD.id; CREATE OR REPLACE RULE query_expr_string_delete_rule AS ON DELETE TO query.expr_string DO INSTEAD DELETE FROM query.expression WHERE id = OLD.id; COMMIT;