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Re: ERROR: left and right pathkeys do not match in mergejoin - Mailing list pgsql-hackers

From Tom Lane
Subject Re: ERROR: left and right pathkeys do not match in mergejoin
Date
Msg-id 13940.1519411727@sss.pgh.pa.us
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In response to Re: ERROR: left and right pathkeys do not match in mergejoin  (Alexander Kuzmenkov <a.kuzmenkov@postgrespro.ru>)
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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

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