| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Greg Stark <gsstark(at)mit(dot)edu> |
| Cc: | Emmanuel Cecchet <manu(at)asterdata(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: DISTINCT ON |
| Date: | 2009-11-04 05:56:02 |
| Message-ID: | 9132.1257314162@sss.pgh.pa.us |
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| Thread: | |
| Lists: | pgsql-hackers |
Greg Stark <gsstark(at)mit(dot)edu> writes:
> On Wed, Nov 4, 2009 at 3:17 AM, Emmanuel Cecchet <manu(at)asterdata(dot)com> wrote:
>> SELECT DISTINCT ON ('1'::varchar, '1'::varchar) a FROM (SELECT 1 AS a) AS a
>> ORDER BY '1'::varchar, '1'::varchar, '2'::varchar;
> This sounds familiar. What version of Postgres are you testing this on?
Presumably something before this bug
http://archives.postgresql.org/pgsql-sql/2008-07/msg00123.php
got fixed
http://archives.postgresql.org/pgsql-committers/2008-07/msg00341.php
regards, tom lane
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