Re: pgsql: Support Parallel Append plan nodes.

On 6 December 2017 at 20:59, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Robert Haas <robertmhaas(at)gmail(dot)com> writes:
>> On Wed, Dec 6, 2017 at 5:01 AM, Amit Khandekar <amitdkhan(dot)pg(at)gmail(dot)com> wrote:
>>> In attached revised patch, just added some comments in the changes that you did.
>
>> Committed, thanks.
>
> While this patch (looks like it) fixes the logic error, it does nothing
> for the problem that the committed test cases don't actually exercise
> any of this code on most machines -- certainly not whichever one is
> producing the code coverage report:
> https://coverage.postgresql.org/src/backend/executor/nodeAppend.c.gcov.html
>
> Can we do something with Andres' suggestion of running these test cases
> under parallel_leader_participation = off?
>
> regards, tom lane

Yes, I am planning to send a patch that makes all those
Parallel-Append test cases run once with parallel_leader_participation
"on" and then run again with the guc "off" . Thanks.

--
Thanks,
-Amit Khandekar
EnterpriseDB Corporation
The Postgres Database Company