Dnia 2004-02-20 16:35, Użytkownik Bill Moran napisał:
> Can anyone say whether this is a supported feature in plpgsql, and is
> safe to use? Is it simply undocumented, or am I just looking in the
> wrong place?
"iscachable" is only for backward compatibility - it's changed now to
"IMMUTABLE"
You can read more about immutable, stable and volatile functions in
Postgresql documentation - chapter SQL Commands/CREATE FUNCTION.
Regards,
Tomasz Myrta
