From: Tom Lane <tgl@sss.pgh.pa.us>
To: mario.splivalo@mobart.hr
Cc: pgsql-sql@postgresql.org
Subject: Re: JOIN query not working as expected
Date: Tue, 06 Dec 2005 10:02:31 -0500
Message-ID: <227.1133881351@sss.pgh.pa.us> (raw)
In-Reply-To: <1133881258.8161.28.camel@ekim>
References: <1133878084.8161.22.camel@ekim>
<164.1133881091@sss.pgh.pa.us>
<1133881258.8161.28.camel@ekim>
Mario Splivalo <mario.splivalo@mobart.hr> writes:
> I can create a FK on a column wich allows NULL values, and I can even
> insert rows with NULLs in FK column, although PK table where FK is
> pointing does not allow nuls. Is that 'by design', or...?
It's per SQL spec. Add a NOT NULL constraint to the column if you do
not wish to allow NULLs.
regards, tom lane
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To: pgsql-sql@postgresql.org
Cc: tgl@sss.pgh.pa.us, mario.splivalo@mobart.hr
Subject: Re: JOIN query not working as expected
In-Reply-To: <227.1133881351@sss.pgh.pa.us>
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