On Thu, Apr 27, 2017 at 4:13 PM, Bruce Momjian <bruce@momjian.us> wrote:
On Thu, Apr 27, 2017 at 08:00:28AM +0530, Amit Kapila wrote: > > Oh, so non-correlated subqueries can be run in parallel. Yes, that is > > something we should have in the release notes. How is this? > > > > Author: Robert Haas <rhaas@postgresql.org> > > 2017-02-14 [5e6d8d2bb] Allow parallel workers to execute subplans. > > > > Allow non-correlated subqueries to be run in parallel (Amit Kapila) > > > > Looks good to me.
It's not clear from this item what the previous behavior was. How about adding something like "Correlated subqueries can not yet be parallelized."? (I'm guessing that's the change, anyway, please correct me if I'm mistaken.)