Re: pgsql: Add parallel-aware hash joins.

Andres Freund <andres(at)anarazel(dot)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