Jud Gardner <jgardner(at)comprehend(dot)com> writes:
> When submitted through psql I don't see the issue.
> I also don't see it when submitting via jdbc (42.2.2) directly.
> I'm seeing this via jdbc through dbVisualizer, haven't seen this kind of
> behavior before.
Interesting. It could be that dbVisualizer is setting some parameter
or transaction mode that prevents parallelism. SERIALIZABLE mode
does so, for example, because the serializable-transaction logic
hasn't been taught about parallelism yet.
regards, tom lane