On Fri, 2025-04-25 at 12:36 +1200, David Rowley wrote: > On Fri, 25 Apr 2025 at 03:06, Laurenz Albe <laurenz.a...@cybertec.at> wrote: > > On Fri, 2025-04-25 at 01:41 +1200, David Rowley wrote: > > > The 79.3 seconds is the total time spent doing reads for all parallel > > > workers. 52.6 seconds is the wall clock time elapsed to execute the > > > query. > > > > But wouldn't it read "loops=3" or similar then? > > Only if the Nested Loop was below the Gather / Gather Merge node.
Ah, I see. The I/O time accrued in a different, lower, parallelized step of the execution plan. Yours, Laurenz Albe