On Wed, Oct 19, 2016 at 11:07 PM, Amit Kapila <amit.kapil...@gmail.com> wrote: >> Ideally, the parallel_workers storage parameter will rarely be >> necessary because the optimizer will generally do the right thing in >> all case. > > Yeah, we can choose not to provide any parameter for parallel index > scans, but some users might want to have a parameter similar to > parallel table scans, so it could be handy for them to use.
I think the parallel_workers reloption should override the degree of parallelism for any sort of parallel scan on that table. Had I intended it to apply only to sequential scans, I would have named it differently. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
