On 17/03/2016 12:21, David Rowley wrote: > On 18 March 2016 at 00:13, Julien Rouhaud <julien.rouh...@dalibo.com> wrote: >> With the current threshold, you need a table bigger than 8 MB to be able >> to force parallel workers. I'm not sure there'll be benefits for >> multiple workers on a table smaller than 8 MB, since setting up all the >> parallel stuff takes time. > > It would be really nice if it were possible to drop the setting really > low, so that combined with a low parallel_setup_cost we could enable > parallel query on small tables in the regression test suite. > >
Indeed. That could also be a use case for moving parallel_threshold to a GUC, but not sure what'd be best. -- Julien Rouhaud http://dalibo.com - http://dalibo.org -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
