On 10/01/07, Nicolai Tufar <[EMAIL PROTECTED]> wrote:
Hi all,We plan to port a small problem from MS SQL to Ingres. Almost every table has one ON UPDATE trigger that updates username column with relevant information. We try to port it to Ingres and alas, there are no BEFORE rules in Ingres :( We tried to do it with AFTER: CREATE TABLE test (id INT, username VARCHAR(10)); CREATE PROCEDURE test_upd_proc(id INT) AS BEGIN UPDATE test SET username=CURRNET_USER WHERE id=:id; END; CREATE RULE test_rule_upd AFTER UPDATE ON test FOR EACH ROW EXECUTE PROCEDURE test_upd_proc(id = NEW.id); But when you update the table procedure because of UPDATE statement on the same table in procedure, rule gets executed over and over again until it reaches the limit of recursion and throws the error: E_QE0208 Query exceeds the limit (20) for cascading rules and nested database procedures. The query is aborted with fatal error. Does anyone know an easy way to do it? I wish Ingres had BEFORE rules. :(
Ingres 2006 Release 2 - currently beta for Linux - has BEFORE rules. http://ingres.com/download_community/Prod_Community_Downloads.html hth -- Paul Mason _______________________________________________ Users mailing list Users@lists.ingres.com http://lists.ingres.com/mailman/listinfo/users
