Re: Postgres 12 -> 13 any need to re-index? - Mailing list pgsql-admin

From David G. Johnston
Subject Re: Postgres 12 -> 13 any need to re-index?
Date
Msg-id CAKFQuwbxCD1cW8feNijtH3D_0xybwH+RaJoCWDu9dRKhgGnbmw@mail.gmail.com
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In response to Re: Postgres 12 -> 13 any need to re-index?  (Wells Oliver <wells.oliver@gmail.com>)
List pgsql-admin
On Tuesday, February 9, 2021, Wells Oliver <wells.oliver@gmail.com> wrote:
OK, that seems to have made a huge difference. and ran very quickly, ~15 mins on a ~1TB database. 

Is there a way to better understand what it did?


Read the documentation?
 

There's no way it rebuilt indexes in that amount of time. Also, as I said, I never did that going from 9->10->11->12, so it's interesting to me that it was so critical this time around.

 I’m more inclined to think you did the analyze and just don’t remember - though its possible that the auto-vacuum daemon helped out behind the scenes.

David J.

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