On Tue, Dec 5, 2017 at 2:49 AM, Thomas Munro
<thomas.munro@enterprisedb.com> wrote:
> As for how to aggregate the information, isn't it reasonable to show
> data from the last loop on the basis that it's representative?
> Summing wouldn't make too much sense, because you didn't use that much
> memory all at once.
Sorts can be rescanned even without parallel query, so I guess we
should try to make the parallel case kinda like the non-parallel case.
If I'm not wrong, that will just use the stats from the most recent
execution (i.e. the last loop) -- see show_sort_info() in explain.c.
--
Robert Haas
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