BEGIN; INSERT INTO config.upgrade_log (version) VALUES ('0256'); -- Scott McKellar -- Create updatable view for bind variable expressions CREATE OR REPLACE VIEW query.expr_xbind AS SELECT id, parenthesize, parent_expr, seq_no, bind_variable FROM query.expression WHERE type = 'xbind'; CREATE OR REPLACE RULE query_expr_xbind_insert_rule AS ON INSERT TO query.expr_xbind DO INSTEAD INSERT INTO query.expression ( id, type, parenthesize, parent_expr, seq_no, bind_variable ) VALUES ( COALESCE(NEW.id, NEXTVAL('query.expression_id_seq'::REGCLASS)), 'xbind', COALESCE(NEW.parenthesize, FALSE), NEW.parent_expr, COALESCE(NEW.seq_no, 1), NEW.bind_variable ); CREATE OR REPLACE RULE query_expr_xbind_update_rule AS ON UPDATE TO query.expr_xbind DO INSTEAD UPDATE query.expression SET id = NEW.id, parenthesize = NEW.parenthesize, parent_expr = NEW.parent_expr, seq_no = NEW.seq_no, bind_variable = NEW.bind_variable WHERE id = OLD.id; CREATE OR REPLACE RULE query_expr_xbind_delete_rule AS ON DELETE TO query.expr_xbind DO INSTEAD DELETE FROM query.expression WHERE id = OLD.id; COMMIT;