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Re: Range Types: << >> -|- ops vs empty range - Mailing list pgsql-hackers

From Jeff Davis
Subject Re: Range Types: << >> -|- ops vs empty range
Date
Msg-id 1297445182.27157.621.camel@jdavis
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In response to Re: Range Types: << >> -|- ops vs empty range  (Robert Haas <robertmhaas@gmail.com>)
Responses Re: Range Types: << >> -|- ops vs empty range  (Robert Haas <robertmhaas@gmail.com>)
Re: Range Types: << >> -|- ops vs empty range  ("Kevin Grittner" <Kevin.Grittner@wicourts.gov>)
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On Fri, 2011-02-11 at 12:03 -0500, Robert Haas wrote:
> For what it's worth, my completely uninformed opinion is that
> comparison operators shouldn't error out.  I haven't read the patch so
> I'm not sure what those operators are defined to do, though.

">>" means "strictly right of"
"<<" means "strictly left of"
"-|-" means "adjacent" (touching but not overlapping)

I'm open to suggestion about how those behave with empty ranges.

Regards,Jeff Davis

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