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Re: Difference in execution plans pg12 vs pg14

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Yes, I did. 
I reset table statistics, did (VACUUM) ANALYZE, recreated index. Nothing changes.
I've deleted the database many times, dozens of times. Maybe something is broken?
--
Regards, Dmitry!


сб, 11 дек. 2021 г. в 06:13, Adrian Klaver <adrian.klaver@xxxxxxxxxxx>:
On 12/10/21 17:00, Дмитрий Иванов wrote:
> Afternoon. I was able to make the necessary changes to my base needed to
> migrate win_pg12 to debian pg14.
> But there is a new problem, which was not there at the initial stage so
> I checked:
>
> win_pg12:
> ->  Index Scan using index_class_tree_full on class c  (cost=0.28..2.50
> rows=1 width=235) (actual time=0.030..0.032 rows=1 loops=1)
>                       Index Cond: (id = 650)
> debian_pg14:
> ->  Index Scan using index_class_tree_full on class c  (cost=0.28..2.50
> rows=1 width=235) (actual time=842.795..842.796 rows=1 loops=1)
>                       Index Cond: (id = 650)
>
> I'm wondering where to dig next...

Did you run ANALYZE(updates table stats) on the 14 instance after doing
the upgrade?

> --
> Best regards, Dmitry!


--
Adrian Klaver
adrian.klaver@xxxxxxxxxxx

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