Re: [HACKERS] INTERSECT/EXCEPT and duplicates?

From: Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us>
To: t-ishii(at)sra(dot)co(dot)jp
Cc: pgsql-hackers(at)postgreSQL(dot)org
Subject: Re: [HACKERS] INTERSECT/EXCEPT and duplicates?
Date: 1999-08-05 01:44:35
Message-ID: 199908050144.VAA11285@candle.pha.pa.us
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> Hi,
>
> SQL92 seems to assume that results of the INTERSECT/EXCEPT contain no
> duplications unless "ALL" is specified. However PostgreSQL 6.5.1 does
> not follow the requirement, I think. Maybe we need to add this to the
> TODO list?
> ---

Added to TODO:

* have INTERSECT/EXCEPT prevent duplicates unless ALL is specified

--
Bruce Momjian | http://www.op.net/~candle
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