Re: Alphanumeric natural order sorting : need generic solution - Mailing list pgsql-general

From Albe Laurenz
Subject Re: Alphanumeric natural order sorting : need generic solution
Date
Msg-id A737B7A37273E048B164557ADEF4A58B057CA8AF@ntex2010a.host.magwien.gv.at
Whole thread Raw
In response to Alphanumeric natural order sorting : need generic solution  ("Umashanker, Srividhya" <srividhya.umashanker@hp.com>)
List pgsql-general
Umashanker, Srividhya wrote:
> I am looking for a generic solution to get the Alphanumeric sorting.
>
> *         The user can request for any field to be sorted.
> *         There is no specific format the alphanumeric string  can follow. So that we can split using
> regex and split and sorted.
> *         Need an efficient way. Should not degrade performance.
>
> I tried all possible collation  example -- select * from test order by name collate "en_US";
>
> Is there someone who has solved this problem with writing a function?
>
> Below are more details -

> I am expecting
>
> 1, bay1
> 2, bay2
> 10, bay10
> 11, bay11

The answer is the same as on the other mailing list:

Define precisely (not only with an example) what you mean
by "alphanumeric sorting" and you are more likely to get a helpful answer.

Yours,
Laurenz Albe


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