Re: [HACKERS] latest snapshot crashes backend

From: Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us>
To: lockhart(at)alumni(dot)caltech(dot)edu (Thomas G(dot) Lockhart)
Cc: olly(at)lfix(dot)co(dot)uk, pgsql-hackers(at)postgreSQL(dot)org
Subject: Re: [HACKERS] latest snapshot crashes backend
Date: 1998-11-04 17:41:50
Message-ID: 199811041741.MAA13087@candle.pha.pa.us
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> > Care to give us a table:
> > select * from pg_shadow where (usesysid is null and oid is null);
>
> Sure, that's easy. Just negate your where clause:
>
> tgl=> select * from pg_shadow
> tgl-> where not (usesysid is null and oid is null);
> pqReadData() -- backend closed the channel unexpectedly.
>
> If you can reproduce this, will you have a chance to look at it? I don't
> know where the problem is, but suspect that it is farther back than the
> parser transformations. Rewrite system, optimizer, or executor??

I will look at it. I can reproduce it here.

--
Bruce Momjian | http://www.op.net/~candle
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+ If your life is a hard drive, | 830 Blythe Avenue
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