Thread: wrong sort order
Hi, maybe there is a problem with sorting latin10? Seems to be like spaces don't exists just sorting. Version() ->PostgreSQL 8.0.2 on i686-redhat-linux-gnu, compiled by GCC gcc (GCC) 3.4.2 20041017 (Red Hat 3.4.2-6.fc3) SELECT nombreasociado, codigoasociado FROM Asociados WHERE nombreasociado LIKE 'VILLA%' ORDER BY 1; "VILLA CLAUDIA MARIA";2208 "VILLA CLOTILDE";2902 "VILLAFAA'E ALFREDO ";916 "VILLAFAA'E MARIA ESTER ROSA ";933 "VILLAFAA'E MARIA JULIA ";7590 "VILLAFANE OSVALDO";3548 "VILLAGGI CARLOS RAUL";1523 "VILLAGRA ILEANA";2305 "VILLAGRA MARIA EUGENIA";7310 "VILLA HORACIO E ";2106 "VILLALBA MABEL";397 "VILLALBA ROLANDO A";398 "VILLALBA SILVIA MONICA";2917 "VILLA LUIS SANTIAGO";560 "VILLA MARIA ISABEL";2687 "VILLANI LUCRECIA LILIANA";6657 "VILLANUEVA DIEGO";5888 "VILLANUEVA RICARDO NORBERTO";4608 "VILLA PABLO JOSE";2717 "VILLAR EDUARDO";399 "VILLAR ERNESTO";400 "VILLARES JOSE ANGEL";7174 "VILLAR HUGO EDUARDO";3820 "VILLAR IGNACIO JAVIER";8385 "VILLAR MANUEL ANTONIO";3821 "VILLA ROCA MIGUEL ANGEL";1698 "VILLARREAL NORBERTO";1749 "VILLA SEBASTIAN MARCELO";8159 "VILLA STELLA MARIS";7180 "VILLATA ALBERTO LUIS";7646 "VILLATA MARCELO";5973 "VILLAVICENCIO CARLOS HORACIO";7953 but if you try: SELECT nombreasociado, codigoasociado FROM Asociados WHERE nombreasociado LIKE 'VILLA %' ORDER BY 1; "VILLA CLAUDIA MARIA";2208 "VILLA CLOTILDE";2902 "VILLA HORACIO E ";2106 "VILLA LUIS SANTIAGO";560 "VILLA MARIA ISABEL";2687 "VILLA PABLO JOSE";2717 "VILLA ROCA MIGUEL ANGEL";1698 "VILLA SEBASTIAN MARCELO";8159 "VILLA STELLA MARIS";7180 ¿? any clues ¿?
"Alejandro D. Burne" <alejandro.dburne@gmail.com> writes:
> Hi, maybe there is a problem with sorting latin10? Seems to be like
> spaces don't exists just sorting.
The guys who write the locale specifications think that's a feature,
not a bug ;-)
If you don't want it, either use C locale or create your own locale
definition. (I have no idea how easy or hard the latter is.)
regards, tom lane
Maybe I'm wrong, but this "feature" I don't see it in any other rdbms ;-) 2005/7/2, Tom Lane <tgl@sss.pgh.pa.us>: > "Alejandro D. Burne" <alejandro.dburne@gmail.com> writes: > > Hi, maybe there is a problem with sorting latin10? Seems to be like > > spaces don't exists just sorting. > > The guys who write the locale specifications think that's a feature, > not a bug ;-) > > If you don't want it, either use C locale or create your own locale > definition. (I have no idea how easy or hard the latter is.) > > regards, tom lane >
On Sat, Jul 02, 2005 at 11:28:12AM -0300, Alejandro D. Burne wrote: > Hi, maybe there is a problem with sorting latin10? Seems to be like > spaces don't exists just sorting. It's not the encoding, it's the locale. For example, the en_US sorts in dictionary order (ignore spaces and case). Hope this helps, -- Martijn van Oosterhout <kleptog@svana.org> http://svana.org/kleptog/ > Patent. n. Genius is 5% inspiration and 95% perspiration. A patent is a > tool for doing 5% of the work and then sitting around waiting for someone > else to do the other 95% so you can sue them.
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Martjin, this little example show your answer: $ LANG=es_AR $ export LANG $ touch 'villa' $ touch 'villa f' $ touch 'villaa' $ touch 'villat' $ ls | sort villa villaa villa f villat May be this is an off topic, but the question now is how to change or find a locale that include spaces in sort order. Thanks!!!, Alejandro. 2005/7/2, Martijn van Oosterhout <kleptog@svana.org>: > On Sat, Jul 02, 2005 at 11:28:12AM -0300, Alejandro D. Burne wrote: > > Hi, maybe there is a problem with sorting latin10? Seems to be like > > spaces don't exists just sorting. > > It's not the encoding, it's the locale. For example, the en_US sorts in > dictionary order (ignore spaces and case). > > Hope this helps, > --
On Mon, Jul 04, 2005 at 12:13:27PM -0300, Alejandro D. Burne wrote: > May be this is an off topic, but the question now is how to change or > find a locale that include spaces in sort order. You can hack the locale definitions from the GNU C library. Start by getting the source and reading it -- it's far from a trivial task. Or you can use the C locale. But you'll find "strange" behavior with ñ and accented vowels. -- Alvaro Herrera (<alvherre[a]surnet.cl>) "Just treat us the way you want to be treated + some extra allowance for ignorance." (Michael Brusser)