Re: Planning time is high in Postgres 11.5 Compared with Postgres 10.11

On Tue, Dec 17, 2019 at 05:04:18PM +0530, avinash varma wrote:
>>> b) can you compare size of databases, indexes?
>I used the same backup  to restore on V10 and V11 . So the no: of indexes
>and size of databases are same.
>
>One observation is that after pg_restore, we are doing vacuum full analyze
>on both V10 and V11.
>
>This is causing the slowness on V11 . Before vacuum analyze , same query is
>performing well on V11.
>
>Is there any changes in the analyze script in V11 when compared to V10.
>

You've been asked (at least) twice to check size of statistics stored in
pg_stats. It's really hard to help you when you don't provide important
information like this.

regards

-- 
Tomas Vondra                  http://www.2ndQuadrant.com
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