| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | David Rowley <david(dot)rowley(at)2ndquadrant(dot)com> |
| Cc: | PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Álvaro Herrera <alvaro(dot)herrera(at)2ndquadrant(dot)com>, Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com> |
| Subject: | Re: Extended statistics is not working on Vars hidden under a RelabelType |
| Date: | 2017-10-16 16:28:22 |
| Message-ID: | CA+TgmobS=cy=dfwGQ5yNs6AMD1QK2ecPRMFhT7q2Agfq3BaG=g@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Mon, Oct 16, 2017 at 2:36 AM, David Rowley
<david(dot)rowley(at)2ndquadrant(dot)com> wrote:
> I personally think it's great we're starting to see a useful feature
> materialise that can help with poor row estimates from the planner.
I agree. My original post to this thread was more of a throw-away
comment than anything, and I'm not attacking the feature. I didn't
think it was a very clear example and, TBH, I still don't. But I
don't want to blow that up into a big debate on the virtues of this
feature, which I never intended to question, or on the correctness of
the patch, which I also did not intend to question.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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