> 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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