Skip site navigation (1) Skip section navigation (2)

Re: 8.4, 9.0 bug (doesn't exist in 9.1) related to window functions

From: Jeff Davis <pgsql(at)j-davis(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: pgsql-bugs(at)postgresql(dot)org
Subject: Re: 8.4, 9.0 bug (doesn't exist in 9.1) related to window functions
Date: 2012-01-27 02:06:07
Message-ID: 1327629967.9123.4.camel@sussancws0025 (view raw or flat)
Thread:
Lists: pgsql-bugs
On Thu, 2012-01-26 at 20:43 -0500, Tom Lane wrote:
> Jeff Davis <pgsql(at)j-davis(dot)com> writes:
> > => select ntile(3) OVER ( ORDER BY CASE WHEN count(i) = 0 THEN NULL ELSE
> > count(i) END asc ) from ( SELECT NULL::integer as i limit 0 ) s ;
> > ERROR:  cannot extract attribute from empty tuple slot
> 
> I believe this is the same case fixed here:
> http://git.postgresql.org/gitweb/?p=postgresql.git;a=commitdiff;h=c1d9579dd
> 
> and as noted in that commit message, it didn't appear worth the risk
> of fixing it in released branches.

Thank you. For the record, it looks like the one that fixed the similar
problem in early 9.1 was here:

http://git.postgresql.org/gitweb/?p=postgresql.git;a=commit;h=269c5dd2f46e3490da05d5dd5dad07828df281d9

Regards,
	Jeff Davis


In response to

pgsql-bugs by date

Next:From: Tom LaneDate: 2012-01-27 06:37:11
Subject: Re: pgcrypto decrypt_iv() issue
Previous:From: Tom LaneDate: 2012-01-27 01:43:04
Subject: Re: 8.4, 9.0 bug (doesn't exist in 9.1) related to window functions

Privacy Policy | About PostgreSQL
Copyright © 1996-2014 The PostgreSQL Global Development Group