Re: Sorting when "*" is the initial character

From: CoL <col(at)mportal(dot)hu>
To: pgsql-general(at)postgresql(dot)org
Subject: Re: Sorting when "*" is the initial character
Date: 2005-02-08 02:10:17
Message-ID: cu96rj$20i6$1@news.hub.org
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hi,

Berend Tober wrote, On 2/7/2005 22:20:
> I encountered what looks like unusually sorting behavior, and I'm wondering if
> anyone can tell me if this is supposted to happen (and then if so, why) or if
> this is a bug:
>
> CREATE TABLE sample_table
> (
> account_id varchar(4),
> account_name varchar(25)
> )
> WITHOUT OIDS;
>
> INSERT INTO sample_table VALUES ('100', 'First account');
> INSERT INTO sample_table VALUES ('110', 'Second account');
> INSERT INTO sample_table VALUES ('120', 'Third account');
> INSERT INTO sample_table VALUES ('*125', 'Fourth account');
> INSERT INTO sample_table VALUES ('*115', 'Fifth account');
>
> SELECT * FROM sample_table ORDER BY 1;
>
> account_id,account_name
> 100,First account
> 110,Second account
> *115,Fifth account
> 120,Third account
> *125,Fourth account
>
> I would expect to see
>
> account_id,account_name
> *115,Fifth account
> *125,Fourth account
> 100,First account
> 110,Second account
> 120,Third account

order by case when account_id like '*%' then 0 else 1 end

C.

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