Ummmm. Postgresql doesn't natively support cross database queries... On Thu, 12 Feb 2004, Stef wrote:
> Hey there everyone. > > Sorry for what seems to be a rather strange > thought but, could we change the seperator used to > distinguish 'cross-database' vs 'cross-schema' ? > > For example, i would expect the following > to work: > > CREATE OR REPLACE FUNCTION test_autohist() RETURNS trigger > AS 'BEGIN > INSERT INTO history.test2 VALUES > (new.field1,history.test_hist.nextval(), new.field2, new.field3, new.field4, > new.creation_id, new.creation_date, new.creation_id, new.creation_date); > RETURN ; > END;' LANGUAGE 'plpgsql'; > > CREATE TRIGGER test_autohist_trig > AFTER INSERT OR UPDATE ON test > FOR EACH ROW > EXECUTE PROCEDURE test_autohist(); > > > However, when i try it, as far as i can tell, > the planner parses it down, finds that the schema isnt > in the current 'search_path' and thus thinks its a cross > database call. > > I understand that it may take the planner a > while to go through all the available schema's to then > deduce that it isnt infact a schema at all and return > the fact that 'cross-database queries are currently not > implemented', therefore, in the realm of crazy idea, > would it be possible to change the notation to reference > another db ? > > I was thinking something along the lines of '@', > but i guess any other non-important ascii character would > make sense. > > That way, the planner could decide wether or not > to attempt a schema resolution (history.table1) or database > resolution ([EMAIL PROTECTED]). > > > Please note, i am not asking for any sort of > 'make cross-database work', merely asking if some sort > of 'clarification' between cross-database and cross-schema > would be beneficial. > > Ideas ? Comments ? > > regards > Stef > > ---------------------------(end of broadcast)--------------------------- > TIP 9: the planner will ignore your desire to choose an index scan if your > joining column's datatypes do not match > ---------------------------(end of broadcast)--------------------------- TIP 7: don't forget to increase your free space map settings
