| From: | Michael Paquier <michael(at)paquier(dot)xyz> |
|---|---|
| To: | Julien Rouhaud <rjuju123(at)gmail(dot)com> |
| Cc: | Justin Pryzby <pryzby(at)telsasoft(dot)com>, Sergei Kornilov <sk(at)zsrv(dot)org>, Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>, Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, Andreas Karlsson <andreas(at)proxel(dot)se>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: reindex concurrently and two toast indexes |
| Date: | 2020-02-18 06:19:13 |
| Message-ID: | 20200218061913.GJ4176@paquier.xyz |
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| Lists: | pgsql-hackers |
On Tue, Feb 18, 2020 at 07:06:25AM +0100, Julien Rouhaud wrote:
> On Tue, Feb 18, 2020 at 6:30 AM Michael Paquier <michael(at)paquier(dot)xyz> wrote:
>> Hmm. There could be an argument here for skipping invalid toast
>> indexes within reindex_index(), because we are sure about having at
>> least one valid toast index at anytime, and these are not concerned
>> with CIC.
>
> Or even automatically drop any invalid index on toast relation in
> reindex_relation, since those can't be due to a failed CIC?
No, I don't like much outsmarting REINDEX with more index drops than
it needs to do. And this would not take care of the case with REINDEX
INDEX done directly on a toast index.
--
Michael
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