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From: Tom Lane <tgl@sss.pgh.pa.us>
To: David Rowley <dgrowleyml@gmail.com>
Cc: Aleš Zelený <zeleny.ales@gmail.com>
Cc: PostgreSQL mailing lists <pgsql-bugs@lists.postgresql.org>
Subject: Re: BUG #17512: Process running query fails with SIGSEV - nodeMemoize.c:349
Date: Tue, 07 Jun 2022 19:43:01 -0400
Message-ID: <1432708.1654645381@sss.pgh.pa.us> (raw)
In-Reply-To: <CAApHDvpxFSTwvoYWT7kmFVSZ9zLAeHb=S9vrz=RExMgSkQNWqw@mail.gmail.com>
References: <17512-36fa5fab90f48af9@postgresql.org>
	<CAApHDvqohSVm-QgGyJhq6TB1GSN-UeuWdOaQwHTkL6UVQ3xpsg@mail.gmail.com>
	<CAODqTUatpvf7D0e5cykrqEih6j8cGw7NTRLpZhPAZX6+-Ec94Q@mail.gmail.com>
	<CAODqTUY5DqbnSMxmTB2xWKuOd4Ykg8GEJMPA16jUkPsmx75TrQ@mail.gmail.com>
	<1264308.1654628854@sss.pgh.pa.us>
	<CAApHDvpxFSTwvoYWT7kmFVSZ9zLAeHb=S9vrz=RExMgSkQNWqw@mail.gmail.com>

David Rowley <dgrowleyml@gmail.com> writes:
> server closed the connection unexpectedly

Ugh.

> If I patch it with the attached rebustify_memoize_code.patch, I get:
> # explain analyze select * from t1 inner join t1 t2 on t1.a=t2.a where t1.a<=2;
> ERROR:  unable to find memoization table entry

> My thoughts are that we likely should make this code more robust,
> despite the bug not being related to a broken data type. I'm only just
> over the fence on that one though. Any thoughts?

Strong +1, but please s/unable to/could not/, per message style
guidelines.

			regards, tom lane





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