Re: Difference in execution plans pg12 vs pg14

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От Adrian Klaver
Тема Re: Difference in execution plans pg12 vs pg14
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Msg-id ae373a95-c25f-596b-f525-1905687ac9e4@aklaver.com
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Ответ на Difference in execution plans pg12 vs pg14  (Дмитрий Иванов <firstdismay@gmail.com>)
Ответы Re: Difference in execution plans pg12 vs pg14
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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@aklaver.com



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