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AW: Re: Query 'Bout A Bug. - Mailing list pgsql-hackers

From Zeugswetter Andreas SB
Subject AW: Re: Query 'Bout A Bug.
Date
Msg-id 11C1E6749A55D411A9670001FA687963368009@sdexcsrv1.f000.d0188.sd.spardat.at
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> > The bug list includes the following:
> >  
> > a.. SELECT foo UNION SELECT foo is incorrectly simplified 
> to SELECT foo 
> > 
> > Wy is this simplification incorrect? I don't get it.
> 
> Not sure.  Maybe someone can comment. 

It can only be simplified to:SELECT DISTINCT * from foo

Andreas

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