Re: No hash join across partitioned tables?

From: Tom Lane
Subject: Re: No hash join across partitioned tables?
Date: ,
Msg-id: 21400.1239980904@sss.pgh.pa.us
(view: Whole thread, Raw)
In response to: No hash join across partitioned tables?  (Kris Jurka)
Responses: Re: No hash join across partitioned tables?  (Kris Jurka)
List: pgsql-performance

Tree view

No hash join across partitioned tables?  (Kris Jurka, )
 Re: No hash join across partitioned tables?  (Tom Lane, )
  Re: No hash join across partitioned tables?  (Kris Jurka, )
   Re: No hash join across partitioned tables?  (Kris Jurka, )
    Re: No hash join across partitioned tables?  (Tom Lane, )
     Re: No hash join across partitioned tables?  (Kris Jurka, )
    Re: No hash join across partitioned tables?  (Tom Lane, )
     Re: No hash join across partitioned tables?  (Bruce Momjian, )
      Re: No hash join across partitioned tables?  (Tom Lane, )
       Re: No hash join across partitioned tables?  (Robert Haas, )
        Re: No hash join across partitioned tables?  (Tom Lane, )
         Re: No hash join across partitioned tables?  (Grzegorz Jaśkiewicz, )
         Re: No hash join across partitioned tables?  (Robert Haas, )
          Re: No hash join across partitioned tables?  (Tom Lane, )
           Re: No hash join across partitioned tables?  (Bruce Momjian, )
            Re: No hash join across partitioned tables?  (Tom Lane, )
             Re: No hash join across partitioned tables?  (Bruce Momjian, )
              Re: No hash join across partitioned tables?  (Tom Lane, )
               Re: No hash join across partitioned tables?  (Robert Haas, )
                Re: No hash join across partitioned tables?  (Bruce Momjian, )
          Re: No hash join across partitioned tables?  (Alvaro Herrera, )
           Re: No hash join across partitioned tables?  (Tom Lane, )
            Re: No hash join across partitioned tables?  (Samuel Gendler, )
             Re: No hash join across partitioned tables?  (Alvaro Herrera, )
              Re: No hash join across partitioned tables?  (Samuel Gendler, )
               Re: No hash join across partitioned tables?  (Alvaro Herrera, )
            Re: No hash join across partitioned tables?  (Robert Haas, )
 Re: No hash join across partitioned tables?  (Tom Lane, )
  Re: No hash join across partitioned tables?  (Kris Jurka, )

Kris Jurka <> writes:
> The hash join takes less than twenty seconds, the other two joins I
> killed after five minutes.  I can try to collect explain analyze results
> later today if you'd like.

Please, unless the test case you already posted has similar behavior.

            regards, tom lane


pgsql-performance by date:

From: Matthew Wakeling
Date:
Subject: Re: GiST index performance
From: Grzegorz Jaśkiewicz
Date:
Subject: stats are way off on 8.4 b1