Re: Difference in execution plans pg12 vs pg14

On 12/10/21 17:51, Дмитрий Иванов wrote:
> 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?

How did you do the upgrade?

> --
> Regards, Dmitry!
> 
> 
> сб, 11 дек. 2021 г. в 06:13, Adrian Klaver  >:
> 
>     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 
> 


-- 
Adrian Klaver
adrian.klaver@aklaver.com