Re: How to order varchar data by word - Mailing list pgsql-sql

From Oliveiros C,
Subject Re: How to order varchar data by word
Date
Msg-id 754C7C57E773410197FA4BF910DE9973@marktestcr.marktest.pt
Whole thread Raw
In response to How to get the previous date?  (Shruthi A <shruthi.iisc@gmail.com>)
Responses Re: How to order varchar data by word  (Adrian Klaver <aklaver@comcast.net>)
List pgsql-sql
Hello, Tom.

Thank you for your e-mail

Even though I am not familiar with the exact procedure to switch to other 
locales,
I'm gonna research this more deeply.

Anyway, I would appreciate if you could spare me some time and give me a 
couple of pointers to this subject.

Again, thank you

Best,
Oliveiros

----- Original Message ----- 
From: "Tom Lane" <tgl@sss.pgh.pa.us>
To: "Oliveiros C," <oliveiros.cristina@marktest.pt>
Cc: "Adrian Klaver" <aklaver@comcast.net>; <pgsql-sql@postgresql.org>
Sent: Monday, October 19, 2009 6:32 PM
Subject: Re: [SQL] How to order varchar data by word


> "Oliveiros C," <oliveiros.cristina@marktest.pt> writes:
>> If any one can explain me exactly how the order by clause works on 
>> varchars,
>> I 'd really appreciate it.
>
> It sorts according to the sort order imposed by your locale setting
> (see LC_COLLATE in particular).
>
> A lot of locales have weird and wonderful rules that embody somebody's
> notion of "dictionary order".  If you don't like it, try switching to
> C locale.  Or you could learn enough about locale definitions to create
> your own.
>
> regards, tom lane
>
> -- 
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