Date: Fri, 15 Mar 2002 17:14:19 -0600
From: "Ross J. Reedstrom" <reedstrm@rice.edu>
To: awais <awais@techlogix.com>
Cc: pgsql-docs@postgresql.org
Subject: Re: problem with new postgresql driver
Message-ID: <20020315231419.GB18407@rice.edu>
References: <009601c1cb4b$ed1b0040$1700a8c0@awais>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <009601c1cb4b$ed1b0040$1700a8c0@awais>
User-Agent: Mutt/1.3.27i

The correct syntax is:

SELECT * FROM atm WHERE location IS NULL

Ross


On Thu, Mar 14, 2002 at 04:32:30PM +0500, awais wrote:
> Hi,
> 
>     We have a table named "atm" in our database which is uing latest driver of postgresql, it has a column named "location", all records (which are more than 1) of "atm" table have this column value set as (null). When we executed the query "select * from atm where location=null ", 0 rows were returned, which was not we were expecting.
> 
>     We have another database using previous driver of postgresql, it also has a table named "atm" with a column named "location", similarly all records (which are more than 1) of "atm" table have this column value set as (null), when we executed the query "select * from atm where location=null ", all rows were returned, which  was according to our expectations.
> 
>     Can u please describe how to tackle this problem.
> 
> regards,
> Awais