Alexander Kuzmenkov <a.kuzmenkov@postgrespro.ru> writes:
> In create_mergejoin_plan:
> * implied inner ordering is then "ORDER BY x, y, x", but the pathkey
> * drops the second sort by x as redundant, and this code must cope.
> -- should this read "the pathkey machinery drops"?
I changed that and improved some other comments, and pushed it.
Thanks for reviewing!
regards, tom lane