From: | Dennis Gearon <gearond(at)cvc(dot)net> |
---|---|
To: | Dragan Matic <gekko(at)eunet(dot)yu> |
Cc: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: why don't string function work in WHERE clause? |
Date: | 2003-04-30 22:59:39 |
Message-ID: | 3EB0555B.4080508@cvc.net |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-general |
try
select column1 from table1 where trim( lower(column1) ) = 'some_string'
As someone in the archives has said, char is evil. And varchar is your friend.
Dragan Matic wrote:
> Here's a sample:
>
> select column1 from table1 where lower(column1) = 'some_string'
>
> will not give me any results although column1 (defined as char[50]) has
> values like
> 'Some_string' or 'SOME_STRING'
>
> if for instance I say something like:
>
> select lower(column1) from table1 where column1 = 'SOME_STRING'
>
> then it returns 'some_string' correctly. The same thing happens with
> 'upper' and similar functions. Why don't they work when they are in
> WHERE clause?
>
> Dragan Matic
>
>
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