Re: backend crash

Tomas Vondra <tomas.vondra@2ndquadrant.com> writes:
> On Mon, Apr 13, 2020 at 09:25:35AM +0200, Kamil Jońca wrote:
>> I have problem with (pseudo) random backend crashes.
>> They seems to happen at one query, but not every time.

> I've tried to reproduce this, but unfortunately it does not fail for me.
> Chances are this depends on data. Can you prepare a small data sample
> that would trigger the issue?

This is evidently a parallel-query worker, so it's unlikely you'd ever
get anywhere near this crash with a "small" data sample; for starters
there'd have to be enough data to prompt use of a parallel plan.

I doubt that the crash is very data-specific though.  Maybe just fill
the table with a lot of dummy data?

            regards, tom lane