Tom Lane wrote: > Gaetano Mendola <[EMAIL PROTECTED]> writes: >> [ 8.2 evaluates volatile functions in the targetlist of a view ] >> If I mark the function as STABLE or IMMUTABLE then even with version >> 8.2 the function is not evaluated. Is this the intended behavior? > > Yes; people complained that we needed to be more careful about the > number of times volatile functions get evaluated.
I suspect that functions are evaluated also for record discarded due to joins. Is that the case? Like: SELECT * FROM ta JOIN tb USING (id) where tb.foo = 4; If ta is a view with some calculated fields are the function on ta evaluated only for record matching the filters or in some case ( like a full scan on ta ) also for the records discarded due to the join? Regards Gaetano Mendola ---------------------------(end of broadcast)--------------------------- TIP 5: don't forget to increase your free space map settings
