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Re: NULL in arrays

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Dennis Bjorklund <db(at)zigo(dot)dhs(dot)org>
Cc: Joe Conway <mail(at)joeconway(dot)com>, pgsql-bugs(at)postgresql(dot)org
Subject: Re: NULL in arrays
Date: 2004-01-15 21:22:50
Message-ID: 24575.1074201770@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-bugs
Dennis Bjorklund <db(at)zigo(dot)dhs(dot)org> writes:
> In the documentation I got the impression that NULL values inside an array
> was not allowed. Now I know that you are allowed to form such an
> expression and that it evaluates to the NULL array. The documentation
> should be fixed then (or maybe it is documented buy i've not seen it).

I don't see anywhere that this behavior is mentioned, either.  Probably
should put something into section 4.2.10 (along with a note that the
behavior is expected to change soon).

			regards, tom lane

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