| From: | Josh Berkus <josh(at)agliodbs(dot)com> |
|---|---|
| To: | Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | pgsql-hackers(at)postgresql(dot)org, Mark Wong <markwkm(at)gmail(dot)com> |
| Subject: | Re: nested loop semijoin estimates |
| Date: | 2015-06-01 23:47:15 |
| Message-ID: | 556CEF03.2030201@agliodbs.com |
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| Thread: | |
| Lists: | pgsql-hackers |
On 06/01/2015 03:22 PM, Tomas Vondra wrote:
>
> On 06/01/15 23:47, Josh Berkus wrote:
>> On 06/01/2015 02:18 PM, Tom Lane wrote:
>>
>>> Anybody else want to speak for or against back-patching the patch as
>>> posted? I intentionally didn't push it in before today's releases,
>>> but I will push it later this week if there are not objections.
>>
>> I would like Mark Wong to test this on DBT3, if that's possible for him.
>> I'm very worried about an unanticipated regression.
>
> AFAIK Mark is busy with other stuff at the moment, but I can do the
> TPC-H (which DBT3 is equal to, IIRC).
Yeah, I just want something which has a chance of catching unanticipated
regression in queries which should be unaffected by the patch.
--
Josh Berkus
PostgreSQL Experts Inc.
http://pgexperts.com
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