| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Alvaro Herrera <alvherre(at)commandprompt(dot)com> |
| Cc: | Marko Tiikkaja <marko(dot)tiikkaja(at)cs(dot)helsinki(dot)fi>, David Fetter <david(at)fetter(dot)org>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Rewrite, normal execution vs. EXPLAIN ANALYZE |
| Date: | 2010-07-23 22:43:34 |
| Message-ID: | AANLkTi=wADn4rToSqnMmOBZ8L_Z15iqPgha4kymJZ6zK@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Fri, Jul 23, 2010 at 6:20 PM, Alvaro Herrera
<alvherre(at)commandprompt(dot)com> wrote:
> Excerpts from Marko Tiikkaja's message of vie jul 23 17:44:21 -0400 2010:
>> On 7/24/10 12:37 AM +0300, Alvaro Herrera wrote:
>> > Excerpts from Marko Tiikkaja's message of vie jul 23 14:13:18 -0400 2010:
>
>> > I don't think it's fair game to change the behavior of multiple-output
>> > rules at this point. However, I also think that it's unwise to base
>> > wCTEs on the behavior of rules -- rules are widely considered broken and
>> > unusable for nontrivial cases.
>>
>> I don't want to change the behaviour either, but we have two different
>> behaviours right now. We need to change at least the other.
>
> It seems like it's EXPLAIN ANALYZE that needs fixing.
I would suggest that if we're going to change this, we back-patch it
to 9.0 before beta4.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise Postgres Company
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