Re: [HACKERS] latest snapshot crashes backend

> > 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.

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