Andy Ballingall <[EMAIL PROTECTED]> schrieb: > Hello Peter, > > I'm glad it's possible, but I can't see how from the documentation. > > Say if I have a table called 'apples' and a table called 'pears'. > > What would the rule look like that would remap all updates on apples so that > they were applied to pears instead?
create rule apples_pears_update as on update to apples do instead update pears set name= NEW.name where id=NEW.id ; test=# select * from apples ; id | name ----+------ 1 | a (1 row) test=# select * from pears ; id | name ----+------ 1 | b (1 row) test=# update apples set name = 'c' where id = 1; UPDATE 1 test=# select * from pears ; id | name ----+------ 1 | c (1 row) http://www.postgresql.org/docs/8.1/interactive/rules-update.html HTH, Andreas -- Really, I'm not out to destroy Microsoft. That will just be a completely unintentional side effect. (Linus Torvalds) Kaufbach, Saxony, Germany, Europe. N 51.05082°, E 13.56889° ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend
