David Rowley <david.rowley@xxxxxxxxxxxxxxx> writes: > On 1 October 2016 at 05:47, Tom Lane <tgl@xxxxxxxxxxxxx> wrote: >> Somebody will need to trace through this on Windows and see where it's >> going off the rails. > I tried the test case on 9.6.0 on a Windows 8.1 machine, and it works > fine for me. Hm, but if we assume that EXPLAIN ANALYZE is somehow affecting the behavior, it's entirely plausible that having auto_explain active would have the same effect. Please try it without auto_explain, and just rely on noting the runtime with psql's \timing to infer whether workers were active or not. regards, tom lane -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general