=?ISO-8859-2?Q?pasman_pasma=F1ski?= <pasman.p@gmail.com> writes:
> That's interpretation of subselect is ok, when it contains only stable
> functions.
> Maybe add a warning when subselect contains volatile function.
We're not likely to do that, because this sort of notation is actually
fairly commonly used to hide the volatility of non-stable functions.
regards, tom lane