On Thu, Mar 16, 2017 at 8:48 AM, Ashutosh Bapat
<ashutosh.bapat@enterprisedb.com> wrote:
> Why do we need following code in both ExecAppendInitializeWorker() and
> ExecAppendInitializeDSM()? Both of those things happen before starting the
> actual execution, so one of those should suffice?
> + /* Choose the optimal subplan to be executed. */
> + (void) parallel_append_next(node);
ExecAppendInitializeWorker runs only in workers, but
ExecAppendInitializeDSM runs only in the leader.
> BTW, sa_finished seems to be a misnomor. The plan is not finished yet, but it
> wants no more workers. So, should it be renamed as sa_no_new_workers or
> something like that?
I think that's not going to improve clarity. The comments can clarify
the exact semantics.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
