| From: | David Hartwig <daveh(at)insightdist(dot)com> |
|---|---|
| To: | Andreas Zeugswetter <andreas(dot)zeugswetter(at)telecom(dot)at> |
| Cc: | "'hackers(at)postgresql(dot)org'" <hackers(at)postgreSQL(dot)org> |
| Subject: | Re: AW: [HACKERS] 6.4 Aggregate Bug |
| Date: | 1998-08-24 13:42:53 |
| Message-ID: | 35E16DDD.AE987DC0@insightdist.com |
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| Thread: | |
| Lists: | pgsql-hackers |
Andreas Zeugswetter wrote:
> >
> > select func(x), aggfunc(y) group by func
> > CRASHES
> >
>
> I think this should be disallowed syntax. Note that func is a system generated label
> in this case, that's probably why the parser does not complain. The syntax has to be:
>
> select func(x), aggfunc(y) group by func(x); -- or
>
> select func(x) as func, aggfunc(y) group by func;
>
To my knowledge postgres has always allowed this syntax. IMO is seems harmless to
continue. In any case, all of these syntax permutations will crash the backend in using
6.4.
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