Re: pgsql: Add support for multivariate MCV lists - Mailing list pgsql-committers

From Tomas Vondra
Subject Re: pgsql: Add support for multivariate MCV lists
Date
Msg-id 20190327203353.GC21957@development
Whole thread Raw
In response to Re: pgsql: Add support for multivariate MCV lists  (Tomas Vondra <tomas.vondra@2ndquadrant.com>)
Responses Re: pgsql: Add support for multivariate MCV lists
List pgsql-committers
On Wed, Mar 27, 2019 at 09:13:46PM +0100, Tomas Vondra wrote:
>On Wed, Mar 27, 2019 at 12:32:34PM -0700, Peter Geoghegan wrote:
>>On Wed, Mar 27, 2019 at 12:04 PM Andres Freund <andres@anarazel.de> wrote:
>>>Congrats, this was long in the making!
>>
>>+1
>>
>
>Thanks! I guess it's a Gordie Howe of our patches.
>
>>Buildfarm member aye-aye has a problem with this patch, though:
>>
>>https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=aye-aye&dt=2019-03-27%2019%3A07%3A53
>>
>
>Damn. And I see locust, prion and dory also seem to have an issue.
>locust is also a power machine, I wonder if that's somehow related.
>
>I'll take a look.
>

There seems to be a bug in statext_mcv_load - the deserialize happens
after releasing syscache. That's probably why prion is failing, because
it's running with -DRELCACHE_FORCE_RELEASE -DCATCACHE_FORCE_RELEASE. Not
sure about aye-aye.


cheers

-- 
Tomas Vondra                  http://www.2ndQuadrant.com
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services




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