On Sat, Oct 14, 2017 at 11:44 PM, Tomas Vondra <tomas.von...@2ndquadrant.com> wrote: > Hi, > > > I propose is to add a new cursor option (PARALLEL), which would allow > parallel plans for that particular user-defined cursor. Attached is an > experimental patch doing this (I'm sure there are some loose ends). >
How will this work for backward scans? > > Regarding (2), if the user suspends the cursor for a long time, bummer. > The parallel workers will remain assigned, doing nothing. I don't have > any idea how to get around that, but I don't see how we could do better. > One idea could be that whenever someone uses Parallel option, we can fetch and store all the data locally before returning control to the user (something like WITH HOLD option). -- With Regards, Amit Kapila. EnterpriseDB: http://www.enterprisedb.com -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
