Re: Comments on Exclusion Constraints and related datatypes

From: Andrew Dunstan <andrew(at)dunslane(dot)net>
To: Simon Riggs <simon(at)2ndQuadrant(dot)com>
Cc: Kevin Grittner <Kevin(dot)Grittner(at)wicourts(dot)gov>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Comments on Exclusion Constraints and related datatypes
Date: 2010-03-22 16:02:23
Message-ID: 4BA7948F.3060203@dunslane.net
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Simon Riggs wrote:
>>
>> Basically, what you feel is missing is documentation that if two
>> shapes share one or more points they are considered to overlap;
>> there is no requirement that they share an area?
>>
>
> Yes, for most people touching != overlap. So it just looks like a bug.
>
>

I guess I must be strange, then, it doesn't strike me as particularly
unnatural. By all means document it, though, if the docs are not clear
on the point.

cheers

andrew

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