Re: [HACKERS] Parser bug?

> I think this is a bug in 6.4:
> 
> bray=> select rcname, rcsrc from pg_relcheck where rcrelid =
> '115404'::oid and rcrelid in (select min(rcrelid) from pg_relcheck
> group by rcname); ERROR:  parser: Subselect has too many or too
> few fields.
> 
> The subselect only produces one column; so I think that the
> error message is wrong.

What is the GROUP BY doing?

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