| From: | Michael Paquier <michael(dot)paquier(at)gmail(dot)com> |
|---|---|
| To: | Simon Riggs <simon(at)2ndquadrant(dot)com> |
| Cc: | "Seki, Eiji" <seki(dot)eiji(at)jp(dot)fujitsu(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Proposal: GetOldestXminExtend for ignoring arbitrary vacuum flags |
| Date: | 2017-02-15 09:25:37 |
| Message-ID: | CAB7nPqQHfF751QBwm_H9wFs1VZmJWR=yY4vtNpdSsiFu=YwLdw@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Wed, Feb 15, 2017 at 5:32 PM, Simon Riggs <simon(at)2ndquadrant(dot)com> wrote:
> Please persuade us with measurements that allowing this impact on
> ANALYZE would really improve performance at least in your case, and
> also examine the effect of this on the accuracy and usefulness of the
> gathered statistics.
FWIW, there was last week a developer meeting in Tokyo, and Seki-san
has presented such measurements. So it is not like nothing exists in
this area.
--
Michael
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