Re: Case insensitive select - Mailing list pgsql-sql

From isaac flemmin
Subject Re: Case insensitive select
Date
Msg-id 000001c2127e$df411980$ad463e04@ixic
Whole thread Raw
In response to Re: Case insensitive select  (Stephan Szabo <sszabo@megazone23.bigpanda.com>)
Responses Re: Case insensitive select  ("Josh Berkus" <josh@agliodbs.com>)
List pgsql-sql
Yes that worked. Thanks! I will have to look more at the lower function
now so I know why that worked!

Thanks again for the prompt response.
Sincerely

Isaac

-----Original Message-----
From: pgsql-sql-owner@postgresql.org
[mailto:pgsql-sql-owner@postgresql.org] On Behalf Of Stephan Szabo
Sent: Wednesday, June 12, 2002 6:34 PM
To: isaac flemmin
Cc: pgsql-sql@postgresql.org
Subject: Re: [SQL] Case insensitive select


On Wed, 12 Jun 2002, isaac flemmin wrote:

> Hello,
>
> I am using PostgreSQL 7.2 and I am trying to do a case insensitive
> select statement using the lower function. I am using these lines from
> the PostgreSQL 7.2 users guide as a template for my query.
>
> --
> "For example, a common way to do case-insensitive comparisons is to
use
> the lower function:
> SELECT * FROM test1 WHERE lower(col1) = 'value';"
> --
>
> The query looks almost exactly the same but it always returns 0
results.
> This does not make sense to me because if the query,
>
> "SELECT * FROM test1 WHERE col1 = 'Value';",
>
> returns something, then I assume the query,
>
> "SELECT * FROM test1 WHERE lower(col1) = 'value';",
>
> should return something as well. Do I not understand the way that the
> lower function works, or is there something else I have to do?
Obviously

If col1 is char(n), the above may have wierd results due to padding
spaces I believe.  Does trim(lower(col1))='value' give results?


---------------------------(end of broadcast)---------------------------
TIP 6: Have you searched our list archives?

http://archives.postgresql.org



pgsql-sql by date:

Previous
From: "Christopher Kings-Lynne"
Date:
Subject: Re: make a unique index for foreign keys?
Next
From: "Josh Berkus"
Date:
Subject: Re: Case insensitive select