Re: Excessive disk usage in WindowAgg

Andres Freund <andres@anarazel.de> writes:
> On 2019-11-04 19:04:52 +0000, Andrew Gierth wrote:
>> Uh, it seems obvious to me that it should be backpatched?

> Fine with me. But I don't think it's just plainly obvious, it's
> essentailly a change in query plans etc, and we've been getting more
> hesitant with those over time.

Since this is happening during create_plan(), it affects no planner
decisions; it's just a pointless inefficiency AFAICS.  Back-patching
seems fine.

            regards, tom lane