Re: Fixed length datatypes. WAS [GENERAL] UUID's as - Mailing list pgsql-hackers
From | Thomas Hallgren |
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Subject | Re: Fixed length datatypes. WAS [GENERAL] UUID's as |
Date | |
Msg-id | 44A37B0E.1070109@tada.se Whole thread Raw |
In response to | Re: Fixed length datatypes. WAS [GENERAL] UUID's as (mark@mark.mielke.cc) |
Responses |
Re: Fixed length datatypes. WAS [GENERAL] UUID's as
(Christopher Kings-Lynne <chris.kings-lynne@calorieking.com>)
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List | pgsql-hackers |
mark@mark.mielke.cc wrote: > On Wed, Jun 28, 2006 at 01:12:17PM -0500, Jim C. Nasby wrote: >> On Wed, Jun 28, 2006 at 01:49:55PM -0400, Andrew Dunstan wrote: >>> Personally I don't buy the misuse objection - we already have plenty of >>> things that can be misused. As long as there is a reasonable valid use >>> and we can make it portable enough, I think there is a good case for >>> including it. >> Well, since Mark has one, how about we consider adding it in? >> If nothing else, can you please put your stuff on pgFoundry so others >> can find it, Mark? > > It was written by Nathan Wagner <nw@hydaspes.if.org> and myself, and > is based off the OSSP ( http://www.ossp.org/ ) UUID implementation. > I'm not an expert on the license, but it seems acceptable to me: > > "Permission to use, copy, modify, and distribute this software for > any purpose with or without fee is hereby granted, provided that > the above copyright notice and this permission notice appear in all > copies." > > I haven't tested to see how portable the OSSP UUID implementation is. > This is their words: > > "OSSP uuid was already written with maximum portability in mind, so > there should be no great effort required to get it running on any Unix > platform with a reasonable POSIX API. Additionally, the portability > was tested by successfully building and running it on the following > particular Unix platforms (syntax is "<cpu>-<os> (<compiler>)"): > > alpha-tru644.0 (cc) > alpha-tru645.1 (gcc, cc) > hppa-hpux11.11 (cc) > ia64-hpux11.23 (cc) > ix86-debian2.2 (gcc, icc) > ix86-debian3.0 (gcc) > ix86-debian3.1 (gcc) > ix86-freebsd4.9 (gcc) > ix86-freebsd5.2 (gcc, icc) > ix86-netbsd1.6 (gcc) > ix86-qnx6.2 (gcc) > ix86-solaris10 (gcc) > ix86-unixware7.1.3 (cc) > mips64-irix6.5 (gcc) > sparc64-solaris8 (gcc, forte) > sparc64-solaris9 (gcc)" > > I've put it through a fair amount of testing, including using it > within compound indexes, expecting the index to be used for at > least '=', constructing many UUIDs quickly, in a sequence, and > converting it to and from string form. We chose to implement our > own encode / decode routines for performance reasons. With the > exception of testing it on a wider range of platforms, I would > call the module stable. > > If there is interest - I'm sure Nathan and I would be willing to put > it on pgfoundry, and at some point give it up for inclusion into > PostgreSQL. > One requirement would be that it runs on Windows. Is that something you have tested? Regards, Thomas Hallgren
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