Hi all, In the past, when writing trigger functions, I’ve always used pl/pgsql without giving it a second thought. Today I was modifying a database creation script that was originally intended for Firebird to work with Postgres and the example trigger procedures in there were very close to pure SQL. Hence, I started rewriting them as SQL functions, but is that really possible? The return-type for trigger functions is usually ‘returns trigger’, which I don’t know how to translate to SQL. Next to that, what should the SQL statement inside the function be returning? This got a bit puzzling and now I wonder whether this is possible at all? And if so, what’s the correct syntax? Say I have the below, how to actually return a value of type trigger?: create or replace function pUpdateFoo() returns trigger as $$ update Bar set baz = baz + NEW.feep - OLD.feep where foo = NEW.foo; $$; create trigger tUpdateFoo after update on Foo for each row execute procedure pUpdateFoo(); Glad to finally have a proper opportunity to apply PG again - it’s been too long! Alban Hertroys -- If you can't see the forest for the trees, cut the trees and you'll find there is no forest. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
