Re: Window function bug

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Jeff Davis <pgsql(at)j-davis(dot)com>
Cc: pgsql-bugs(at)postgresql(dot)org
Subject: Re: Window function bug
Date: 2011-07-12 22:25:59
Message-ID: 18463.1310509559@sss.pgh.pa.us
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Jeff Davis <pgsql(at)j-davis(dot)com> writes:
> On Tue, 2011-07-12 at 11:20 -0400, Tom Lane wrote:
>> So far as I can see, the failure only
>> occurs if we have a plain (non-grouping) Agg node, which implies that
>> the user is trying to use windowing functions on a result set that's
>> guaranteed to contain exactly one aggregated row. That seems pretty
>> useless, so I'm thinking it's not worth back-patching a fix for.
>> Comments?

> Agreed. I'm not worried about backpatching it.

I've fixed this in HEAD and 9.1 only.

regards, tom lane

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