On Fri, Feb 11, 2011 at 3:03 PM, Jeff Davis <pgsql@j-davis.com> wrote:
> Well, there is a certain amount of localized clarity, I will agree with
> that. The complexity comes when you accidentally rely on some
> transformation which seems logically sound, but could result in a
> transient empty range, which then throws an error.
But by this argument you also need to support discontiguous ranges, don't you?
I mean, if you want to insist that A intersect B has to still be a
legal range, what about A union B?
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
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