Re: [sqlsmith] Failed assertion in create_gather_path

From: Andreas Seltenreich <seltenreich(at)gmx(dot)de>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: [sqlsmith] Failed assertion in create_gather_path
Date: 2018-04-07 18:56:22
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Tom Lane writes:
> Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org> writes:
>> Andreas Seltenreich wrote:
>>> as of 039eb6e92f:
>>> TRAP: FailedAssertion("!(subpath->parallel_safe)", File: "pathnode.c", Line: 1813)
>> Uh, that's pretty strange -- that patch did not touch the planner at
>> all, and the relcache.c changes are pretty trivial.
> I don't think Andreas meant that the bug is necessarily new in 039eb6e92f,
> only that that's the version he happened to be testing.

Right. I'm not testing often enough yet to be able to report on commit
granularity :-). I'll try for a less ambiguos wording in future

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