"Fernando Hevia" <[EMAIL PROTECTED]> writes: > -- In this case function test is called only once: > pg=# select res[0] as sum, res[1] as prod, res[2] as dif from > pg-# (select (test(1, 2))::integer[] as res) t ;
That's an implementation artifact, not a guaranteed behavior; if you change the example a bit you'll find multiple calls happening. (In recent releases you'd actually have a better chance of not having multiple calls if you'd declared it volatile instead of immutable.) regards, tom lane -- Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-sql