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Re: Difference in execution plans pg12 vs pg14

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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 <adrian.klaver@xxxxxxxxxxx <mailto: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 <mailto:adrian.klaver@xxxxxxxxxxx>



--
Adrian Klaver
adrian.klaver@xxxxxxxxxxx





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