Re: [sqlsmith] Planner crash on foreign table join

From: Andrew Gierth <andrew(at)tao11(dot)riddles(dot)org(dot)uk>
To: Andreas Seltenreich <seltenreich(at)gmx(dot)de>
Cc: pgsql-hackers(at)postgresql(dot)org, Simon Riggs <simon(at)2ndquadrant(dot)com>
Subject: Re: [sqlsmith] Planner crash on foreign table join
Date: 2017-04-08 07:57:04
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>>>>> "Andreas" == Andreas Seltenreich <seltenreich(at)gmx(dot)de> writes:

Andreas> Hi,

Andreas> testing master at f0e44021df with a loopback postgres_fdw
Andreas> installed, I see lots of crashes on queries joining foreign
Andreas> tables with various expressions. Below is a reduced recipe
Andreas> for the regression database and a backtrace.

Commit ac2b095088 assumes that clauselist_selectivity is being passed a
list of RelOptInfo, but postgres_fdw is passing it a list of bare
clauses. One of them is wrong :-)

Andrew (irc:RhodiumToad)

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