Re: Sorting problem

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От Stu
Тема Re: Sorting problem
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Msg-id BLGdnano8-joIm7dRVn-vg@comcast.com
обсуждение исходный текст
Ответ на Sorting problem  (ruggero.maria.rossi@libero.it (Ruggero))
Список pgsql-sql
Pop text in front of that first value and it works:

template1=# select text '##10############--------####79909999'
template1=#  as "sortfield"
template1-# union
template1-# select '###1############--------####79909999'
template1-# order by sortfield;             sortfield
--------------------------------------###1############--------####79909999##10############--------####79909999
(2 rows)


Stu

Ruggero wrote:

> Hi all,
> I have a problem sorting varchar fields.
> I will explain the problem with a simple example:
> 
> this query
>    select '##10' as sortfield
>    union
>    select '###1' as sortfield
>    order by sortfield
> produces this correct output:
>    '###1'
>    '##10'
> 
> but this one
> 
>   select '##10############--------####79909999' as sortfield
>   union
>   select '###1############--------####79909999' as sortfield
>   order by sortfield
> produces this wrong output:
>    '##10############--------####79909999'
>    '###1############--------####79909999'
> 
> I'm using postgresql 7.4.3 on Suse Linux 9.1.
> I created my db using: initdb --pgdata=../data/ --encoding=LATIN1
> --lc-collate=it_IT --lc-ctype=it_IT
> 
> Any suggestion?
> Tia
> Ruggero



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