On Thu, 19 Sept 2024 at 13:49, Tatsuo Ishii <is...@postgresql.org> wrote: > > > That code could be modified to swap the tuplestores and do a > > tuplestore_clear() instead of tuplestore_end() followed by > > tuplestore_begin_heap(). > > > Impressive result. I also ran your query with count 1000.
I've pushed that patch. That should now unblock you on the nodeRecursiveunion.c telemetry. David