On Fri, Mar 18, 2016 at 10:08 AM, Tom Lane <t...@sss.pgh.pa.us> wrote: > Robert Haas <robertmh...@gmail.com> writes: >> OK, I've committed something along those lines. Thanks for the >> advice, and feel free to whack it around if you have an idea for >> improving it further - though IMHO this is good enough for 9.6. > > The committed patch looks fine to me. WRT your commit-message comment > about pushing down only parallel-safe tlist expressions, I would strongly > advise leaving that for another day. I have some irons in the fire > concerning ways to push down computation of index expressions (so that > we can consistently get f(x) out of an index on f(x) rather than > recomputing it), and managing parallel-safe expressions seems like it'd > benefit from that infrastucture too.
Roger. -- 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
