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Re: Making Vars outer-join aware - Mailing list pgsql-hackers

From Tom Lane
Subject Re: Making Vars outer-join aware
Date
Msg-id 2789900.1671829756@sss.pgh.pa.us
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In response to Re: Making Vars outer-join aware  (Ted Yu <yuzhihong@gmail.com>)
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Ted Yu <yuzhihong@gmail.com> writes:
> For v8-0012-invent-join-domains.patch, in `distribute_qual_to_rels`, it
> seems that `pseudoconstant` and `root->hasPseudoConstantQuals` carry the
> same value.
> Can the variable `pseudoconstant` be omitted ?

Surely not.  'pseudoconstant' tells whether the current qual clause
is pseudoconstant.  root->hasPseudoConstantQuals remembers whether
we have found any pseudoconstant qual in the query.

            regards, tom lane

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