Re: [PATCH] Support for Array ELEMENT Foreign Keys

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Marco Nenciarini <marco(dot)nenciarini(at)2ndquadrant(dot)it>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: [PATCH] Support for Array ELEMENT Foreign Keys
Date: 2012-10-19 02:41:22
Message-ID: 6505.1350614482@sss.pgh.pa.us
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I wrote:
> Or we could go back to using ARRAY here --- that should be safe since
> ARRAY is already fully reserved.

Ugh ... no, that doesn't work, because ARRAY[...] is allowed in c_expr
and hence b_expr. So the ambiguity would still be there. We'd need a
different fully-reserved keyword to go this way.

regards, tom lane

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