Programmatically accessing selection predicates

From: Walter Cai <wzcai92(at)gmail(dot)com>
To: pgsql-hackers(at)lists(dot)postgresql(dot)org
Subject: Programmatically accessing selection predicates
Date: 2018-01-03 01:01:43
Message-ID: CAGCAsriv7BTMjb-oHkHHMzqcb=VMAjGU+5Pb=eyWsQ0Qt0WadA@mail.gmail.com
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Hi,

In order to run some cardinality estimation experiments I'm hoping to
access the raw values for selections predicates from within the
calc_joinrel_size_estimate method (in costsize.c). If possible, I would
very much appreciate the help.

Best, Walter

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