Re: Range types

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От
tomas@tuxteam.de
Тема
Re: Range types
Дата
Msg-id
20091215052609.GA15629@tomas
Ответ на
Re: Range types (Tom Lane)
Список
Дерево обсуждения
Range types Scott Bailey <artacus@comcast.net>
Re: Range types Jeff Davis <pgsql@j-davis.com>
Re: Range types Scott Bailey <artacus@comcast.net>
Re: Range types Tom Lane <tgl@sss.pgh.pa.us>
Re: Range types Jeff Davis <pgsql@j-davis.com>
Re: Range types Tom Lane <tgl@sss.pgh.pa.us>
Re: Range types Jeff Davis <pgsql@j-davis.com>
Re: Range types Martijn van Oosterhout <kleptog@svana.org>
Re: Range types Tom Lane <tgl@sss.pgh.pa.us>
Re: Range types Scott Bailey <artacus@comcast.net>
Re: Range types Jeff Davis <pgsql@j-davis.com>
Re: Range types Robert Haas <robertmhaas@gmail.com>
Re: Range types Jeff Davis <pgsql@j-davis.com>
Re: Range types Tom Lane <tgl@sss.pgh.pa.us>
Re: Range types Jeff Davis <pgsql@j-davis.com>
Re: Range types Tom Lane <tgl@sss.pgh.pa.us>
Re: Range types Jeff Davis <pgsql@j-davis.com>
Re: Range types Scott Bailey <artacus@comcast.net>
Re: Range types Martijn van Oosterhout <kleptog@svana.org>
Re: Range types Scott Bailey <artacus@comcast.net>
Re: Range types Tom Lane <tgl@sss.pgh.pa.us>
Re: Range types Jeff Davis <pgsql@j-davis.com>
Re: Range types Tom Lane <tgl@sss.pgh.pa.us>
Re: Range types Jeff Davis <pgsql@j-davis.com>
Re: Range types Tom Lane <tgl@sss.pgh.pa.us>
Re: Range types Jeff Davis <pgsql@j-davis.com>
Re: Range types Tom Lane <tgl@sss.pgh.pa.us>
Re: Range types Scott Bailey <artacus@comcast.net>
Re: Range types Tom Lane <tgl@sss.pgh.pa.us>
Re: Range types Andrew Dunstan <andrew@dunslane.net>
Re: Range types Tom Lane <tgl@sss.pgh.pa.us>
Re: Range types Nathan Boley <npboley@gmail.com>
Re: Range types Robert Haas <robertmhaas@gmail.com>
Re: Range types tomas@tuxteam.de
Re: Range types Greg Stark <gsstark@mit.edu>
Re: Range types Tom Lane <tgl@sss.pgh.pa.us>
Re: Range types Robert Haas <robertmhaas@gmail.com>
Re: Range types Tom Lane <tgl@sss.pgh.pa.us>
Re: Range types Jeff Davis <pgsql@j-davis.com>
Re: Range types decibel <decibel@decibel.org>
Re: Range types Jeff Davis <pgsql@j-davis.com>
Re: Range types Martijn van Oosterhout <kleptog@svana.org>
Re: Range types Tom Lane <tgl@sss.pgh.pa.us>
Re: Range types decibel <decibel@decibel.org>
Re: Range types Tom Lane <tgl@sss.pgh.pa.us>
Re: Range types Jeff Davis <pgsql@j-davis.com>
Re: Range types Tom Lane <tgl@sss.pgh.pa.us>
Re: Range types Scott Bailey <artacus@comcast.net>
Re: Range types David Fetter <david@fetter.org>
Re: Range types Jeff Davis <pgsql@j-davis.com>
Re: Range types Tom Lane <tgl@sss.pgh.pa.us>
Re: Range types Jeff Davis <pgsql@j-davis.com>
Re: Range types Christophe Pettus <xof@thebuild.com>
Re: Range types Jeff Davis <pgsql@j-davis.com>
Re: Range types decibel <decibel@decibel.org>
Re: Range types Jeff Davis <pgsql@j-davis.com>
Re: Range types Scott Bailey <artacus@comcast.net>
Re: Range types Tom Lane <tgl@sss.pgh.pa.us>
Re: Range types tomas@tuxteam.de
Re: Range types Jeff Davis <pgsql@j-davis.com>
Re: Range types Scott Bailey <artacus@comcast.net>
Re: Range types Tom Lane <tgl@sss.pgh.pa.us>
Re: Range types Tom Lane <tgl@sss.pgh.pa.us>
Re: Range types Scott Bailey <artacus@comcast.net>
Re: Range types Dimitri Fontaine <dfontaine@hi-media.com>
Re: Range types Tom Lane <tgl@sss.pgh.pa.us>
Re: Range types Dimitri Fontaine <dfontaine@hi-media.com>
Re: Range types Tom Lane <tgl@sss.pgh.pa.us>
Re: Range types Scott Bailey <artacus@comcast.net>
Re: Range types Andrew Gierth <andrew@tao11.riddles.org.uk>
Re: Range types Scott Bailey <artacus@comcast.net>
Re: Range types Josh Berkus <josh@agliodbs.com>
Re: Range types Robert Haas <robertmhaas@gmail.com>
Re: Range types tomas@tuxteam.de
Re: Range types Tom Lane <tgl@sss.pgh.pa.us>
Re: Range types "Florian G. Pflug" <fgp@phlo.org>
Re: Range types Nicolas Barbier <nicolas.barbier@gmail.com>
Re: Range types Tom Lane <tgl@sss.pgh.pa.us>
Re: Range types Andrew Dunstan <andrew@dunslane.net>
Re: Range types tomas@tuxteam.de
Re: Range types Alvaro Herrera <alvherre@commandprompt.com>
Re: Range types tomas@tuxteam.de
Re: Range types Tom Lane <tgl@sss.pgh.pa.us>
Re: Range types Alvaro Herrera <alvherre@commandprompt.com>
Re: Range types tomas@tuxteam.de
Re: Range types Alvaro Herrera <alvherre@commandprompt.com>
Re: Range types Scott Bailey <artacus@comcast.net>
Re: Range types Nathan Boley <npboley@gmail.com>
Re: Range types Tom Lane <tgl@sss.pgh.pa.us>
Re: Range types Jeff Davis <pgsql@j-davis.com>
Re: Range types Takahiro Itagaki <itagaki.takahiro@oss.ntt.co.jp>
Re: Range types tomas@tuxteam.de
Re: Range types Robert Haas <robertmhaas@gmail.com>
Re: Range types tomas@tuxteam.de
Re: Range types Tom Lane <tgl@sss.pgh.pa.us>
Re: Range types Tom Lane <tgl@sss.pgh.pa.us>
Re: Range types Tom Lane <tgl@sss.pgh.pa.us>
Re: Range types Jeff Davis <pgsql@j-davis.com>
Re: Range types Scott Bailey <artacus@comcast.net>
Re: Range types Jeff Davis <pgsql@j-davis.com>
Re: Range types Tom Lane <tgl@sss.pgh.pa.us>
Re: Range types Scott Bailey <artacus@comcast.net>
Re: Range types Martijn van Oosterhout <kleptog@svana.org>
Re: Range types Dimitri Fontaine <dfontaine@hi-media.com>
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On Mon, Dec 14, 2009 at 01:32:08PM -0500, Tom Lane wrote:

[...]

> (Also, stuff like strings simply doesn't have any sane concept of a
> unique next or previous value.

If you are willing to limit the length, then yes, you could consider
them discrete too, but...

>                               I think the number of types that are
> really discrete in this sense is very small, like maybe just ints and
> enums.)

...I do agree that ranges over continuous types are the more
"interesting"[1] (and possibly more useful) beast.

- ---------
[11] Unfortunaltel they could turn out to be "interesting" in the sense    of "may you live in interresting times" ;-)

Regards
- -- tomás
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