"Gurjeet Singh" <singh.gurjeet@gmail.com> writes:
> On Wed, Oct 1, 2008 at 3:07 AM, Decibel! <decibel@decibel.org> wrote:
>> ERROR: aggregates not allowed in WHERE clause
> No, the real issue is that you are referencing the outer table's column's
> max() in the inner query (correlated sub-query).
Yeah. It's not easy to see how the software could guess your real
intentions here. We could maybe offer a vaguely-worded HINT but I'm
not able to think of wording that would be very helpful.
regards, tom lane