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Re: operator exclusion constraints

Greg Stark <gsstark@mit.edu>

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From: Greg Stark <gsstark@mit.edu>
To: "David E. Wheeler" <david@kineticode.com>
Cc: Jeff Davis <pgsql@j-davis.com>, Simon Riggs <simon@2ndquadrant.com>, Tom Lane <tgl@sss.pgh.pa.us>, Robert Haas <robertmhaas@gmail.com>, Peter Eisentraut <peter_e@gmx.net>, pgsql-hackers@postgresql.org
Date: 2009-11-09T18:03:22Z
Lists: pgsql-hackers 
On Mon, Nov 9, 2009 at 5:12 PM, David E. Wheeler <david@kineticode.com> wrote:
> On Nov 8, 2009, at 7:43 PM, Jeff Davis wrote:
>
>> Either of those names are fine with me, too. The current name is a
>> somewhat shortened version of the name "operator-based exclusion
>> constraints", so we can also just use that name. Or, just "exclusion
>> constraints".
>
> (exclusion constraints)++


Out of curiosity, is this feature at all similar to SQL assertions?
What would we be missing to turn this into them?


-- 
greg