On Mon, Jul 19, 2010 at 05:55:48PM +0200, arno wrote: > But when using a custom function to compute my where parameter > inet_to_bigint is a function that transform an inet address its integer representation. > Is there a way, either to put function return value in a variable, or to tell > postgres to still use a sequential scan ? I'd guess your function is labeled as "VOLATILE". This is saying that the function has "side effects", but from the function's name I'd guess that it doesn't and the only purpose of calling the function is to get its return value. I'd expect that labeling it as STABLE would cause PG to do what you're expecting. More details here: http://www.postgresql.org/docs/current/static/xfunc-volatility.html -- Sam http://samason.me.uk/ -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general