| From: | Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com> |
|---|---|
| To: | David Rowley <david(dot)rowley(at)2ndquadrant(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Álvaro Herrera <alvaro(dot)herrera(at)2ndquadrant(dot)com> |
| Subject: | Re: Extended statistics is not working on Vars hidden under a RelabelType |
| Date: | 2017-10-10 20:45:37 |
| Message-ID: | a4cd1a39-2621-f635-be92-726292b58c38@2ndquadrant.com |
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| Thread: | |
| Lists: | pgsql-hackers |
On 10/10/2017 05:03 AM, David Rowley wrote:
> Basically, $subject is causing us not to properly find matching
> extended stats in this case.
>
> The attached patch fixes it.
>
> The following test cases is an example of the misbehaviour. Note
> rows=1 vs rows=98 in the Gather node.
>
Thanks for noticing this. The patch seems fine to me.
regards
--
Tomas Vondra http://www.2ndQuadrant.com
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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