Vincenzo Romano wrote: > Hi all. > > What'd be the behavior of a (plpgsql) trigger function when called as > a statement level trigger? > Let's say that a statement will involve more than one row. > The documentation (v8.4.2, "35.1. Overview of Trigger Behavior") says: > > "Statement-level triggers do not currently have any way to examine the > individual row(s) modiļ¬ed by the statement."
It means you don't have NEW or OLD record-variables. You can still perform any queries you need to on the table affected and any other tables of interest. I find statement-level triggers to be useful mostly for sanity-checking. I'll have an AFTER statement level trigger verify a certain invariant on a table - like a table-level CHECK (as opposed to row-level CHECK). -- Craig Ringer -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
