From: Tom Lane <tgl@sss.pgh.pa.us>
To: yon@dugem.com
Cc: pgsql-sql@postgresql.org
Subject: Re: SELECT ... WHERE ... NOT IN (SELECT ...);
Date: Fri, 23 Aug 2002 09:25:44 -0400
Message-ID: <19392.1030109144@sss.pgh.pa.us> (raw)
In-Reply-To: <20020823082835.959193953@sitemail.everyone.net>
References: <20020823082835.959193953@sitemail.everyone.net>
Yon Den Baguse Ngarso <yon@dugem.com> writes:
> If i create tbl1 & tbl2, and then load it with the data.
> The result is CORRECT. Like yours.
> But, if the data loaded from another table, the result become WRONG/ null record.
Do you have any nulls in what you are selecting into tbl2?
The behavior of NOT IN with nulls is not very intuitive.
regards, tom lane
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To: pgsql-sql@postgresql.org
Cc: tgl@sss.pgh.pa.us, yon@dugem.com
Subject: Re: SELECT ... WHERE ... NOT IN (SELECT ...);
In-Reply-To: <19392.1030109144@sss.pgh.pa.us>
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