On Thu, Dec 1, 2016 at 7:57 AM, Amit Kapila <amit.kapil...@gmail.com> wrote: > On Wed, Nov 30, 2016 at 11:57 PM, Robert Haas <robertmh...@gmail.com> wrote: >> On Tue, Nov 29, 2016 at 6:24 AM, Amit Kapila <amit.kapil...@gmail.com> wrote: >>> >>> Robert, do you have any better ideas for this problem? >> >> Not really. I think your prepared_stmt_parallel_query_v2.patch is >> probably the best approach proposed so far, but I wonder why we need >> to include DestCopyOut and DestTupleStore. DestIntoRel and >> DestTransientRel both write to an actual relation, which is a problem >> for parallel mode, but I think the others don't. >> > > I have tried to restrict all the non-readonly operation modes or modes > where parallelism might not make sense like DestTupleStore. If we > want to just prohibit the cases where it can fail now, then I think > prohibiting only DestIntoRel should be sufficient because that is a > case where the user is allowed to do DDL for an already prepared read > only statement like Create Table AS .. EXECUTE.
OK, then my vote is to do it that way for now. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers