Re: pgsql: Add parallel-aware hash joins.

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От Tom Lane
Тема Re: pgsql: Add parallel-aware hash joins.
Дата
Msg-id 14029.1516837038@sss.pgh.pa.us
обсуждение исходный текст
Ответ на Re: pgsql: Add parallel-aware hash joins.  (Andres Freund <andres@anarazel.de>)
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Andres Freund <andres@anarazel.de> writes:
> On 2018-01-22 23:17:47 +1300, Thomas Munro wrote:
>> Here is a patch that halves the size of the test tables used.
>> ... Does this pass repeatedly on gaur?

> I'd say, let's just commit it and see?

Oh, sorry, I forgot I was on the hook to check that.  The news isn't
good: I got one pass, and then this on the second iteration:

*** /home/postgres/pgsql/src/test/regress/expected/join.out     Wed Jan 24 18:07:42 2018
--- /home/postgres/pgsql/src/test/regress/results/join.out      Wed Jan 24 18:26:53 2018
***************
*** 6122,6128 ****
  $$);
   initially_multibatch | increased_batches
  ----------------------+-------------------
!  t                    | f
  (1 row)

  rollback to settings;
--- 6122,6128 ----
  $$);
   initially_multibatch | increased_batches
  ----------------------+-------------------
!  t                    | t
  (1 row)

  rollback to settings;

======================================================================

            regards, tom lane


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