On Sat, 28 Sep 2002 13:41:04 -0400 (EDT), Bruce Momjian
<pgman@candle.pha.pa.us> wrote:
>Does anyone else have a common rule that would return incorrect results
>using the proposed rules?
CREATE VIEW twotables ASSELECT ... FROM table1 INNER JOIN table2 ON ... ;
CREATE RULE twotables_insert AS -- INSERT ruleON INSERT TO twotables DO INSTEAD ( INSERT INTO table1 VALUES
(new.pk,new.col1); INSERT INTO table2 VALUES (new.pk, new.col2)); CREATE RULE twotables_update AS -- UPDATE
ruleONUPDATE TO twotables DO INSTEAD ( UPDATE table1 SET col1 = new.col1 WHERE pk = old.pk; UPDATE table2 SET
col2= new.col2 WHERE pk = old.pk); CREATE RULE twotables_delete AS -- DELETE ruleON DELETE TO twotables DO INSTEAD
( DELETE FROM table1 WHERE pk = old.pk; DELETE FROM table2 WHERE pk = old.pk);
CREATE VIEW visible ASSELECT ... FROM table3WHERE deleted = 0;
CREATE RULE visible_delete AS -- DELETE ruleON DELETE TO visible DO INSTEAD UPDATE table3 SET deleted = 1
WHEREpk = old.pk;
ServusManfred
