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Re: why partition pruning doesn't work? - Mailing list pgsql-hackers

From Tom Lane
Subject Re: why partition pruning doesn't work?
Date
Msg-id 31314.1528822722@sss.pgh.pa.us
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In response to Re: why partition pruning doesn't work?  (Robert Haas <robertmhaas@gmail.com>)
List pgsql-hackers
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Robert Haas <robertmhaas@gmail.com> writes:
> And there is
> code in RelationClearRelation to avoid changing rd_partkey and
> rd_partdesc if no logical change has occurred.

Oh, and by the way, what's actually in there is

        keep_partkey = (relation->rd_partkey != NULL);

I would be interested to see an explanation of why that isn't utterly
broken.

            regards, tom lane

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