On Sat, Aug 11, 2007 at 02:43:30AM -0500, Javier Fonseca V. wrote: > Hello. > > I'm doing a Trigger Procedure in pl/pgSQL. It makes some kind of auditing. > > I think that it's working alright except for the next line: > > EXECUTE 'INSERT INTO ' || quote_ident(somedynamictablename) || ' SELECT > new.*'; > > PostgreSQL keeps telling me: "ERROR: NEW used in query that is not in a > rule". I think that this NEW problem is because of the scope of the EXECUTE > statement (outside the scope of the trigger), so it doesn't recognize the > NEW record.
Sort-of... the issue is that EXECUTE hands the string off to the backend, which has no clue what "NEW" is; only the trigger procedure understands NEW.
> Maybe I could fix it concatenating column names and the 'new' values but I > want to do my trigger as flexible as possible (I have several tables to > audit). > > Somebody has any suggestion?
You could theoretically make the trigger entirely dynamic by having it pull the needed info out of the system catalogs... but I wouldn't want to see the performance of that... If you care about performance *at all*, I'd suggest writing some code that will generate the triggers for a given table for you. I don't expect it'd be much harder than writing a completely dynamic trigger. -- Decibel!, aka Jim Nasby decibel@decibel.org EnterpriseDB http://enterprisedb.com 512.569.9461 (cell)
