Re: Recursive containment of composite types

From: Peter Eisentraut <peter_e(at)gmx(dot)net>
To: Merlin Moncure <mmoncure(at)gmail(dot)com>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Recursive containment of composite types
Date: 2011-03-28 20:04:24
Message-ID: 1301342664.17107.5.camel@vanquo.pezone.net
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On mån, 2011-03-28 at 09:54 -0500, Merlin Moncure wrote:
> Well, maybe. In fact, probably. That's like asking in C if it's sane
> to have a structure to contain a pointer back to itself, which of
> course it is.

But this is not a pointer, it's containment. SQL has pointers, too
(reference types).

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