In article <4b5702b9.50...@postnewspapers.com.au>,
Craig Ringer <cr...@postnewspapers.com.au> writes:

>> 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) modified by the statement."

> It means you don't have NEW or OLD record-variables.

Other databases have NEW and/or OLD pseudo-tables for that.  My
suggestion about implementing that got turned down because, without a
primary key, you can't say which NEW and OLD rows belong to each
other.

Since tables often have a primary key I still think that this would be
an addition making statement-level triggers much more useful than they
are now.


-- 
Sent via pgsql-general mailing list (pgsql-general@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-general

Reply via email to