Pavel Stehule <> writes:
> I don't understand how is possible to get more rows from Sort node than in
> nested seq scan?

The "extra" rows are re-fetches triggered by mark/restore requests from
the parent mergejoin.  The EXPLAIN instrumentation counts re-fetches as
if they were new rows.

                        regards, tom lane

Sent via pgsql-hackers mailing list (
To make changes to your subscription:

Reply via email to