Re: [sqlsmith] Failed assertion in create_gather_path

From: Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>
To: Andreas Seltenreich <seltenreich(at)gmx(dot)de>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: [sqlsmith] Failed assertion in create_gather_path
Date: 2018-04-07 18:43:54
Message-ID: 20180407184354.rx5z2nv6cdkmxawa@alvherre.pgsql
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Andreas Seltenreich wrote:
> Hi,
> sqlsmith found a query that triggers the following assertion in master
> as of 039eb6e92f:
> TRAP: FailedAssertion("!(subpath->parallel_safe)", File: "pathnode.c", Line: 1813)
> Backtrace and recipe against the regression database below.

Uh, that's pretty strange -- that patch did not touch the planner at
all, and the relcache.c changes are pretty trivial.

Álvaro Herrera
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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