title: Problem with number of rows in a dataset
body: <p>My new problem is the following: an SQL query to a database (DB2) returns 1500 rows but BIRT shows me only 500 in the dataset-editor. To count them I used a computed column (Integer) with the following logic:</p>
  
  <pre><code>Total.count(row["VPK"])
  </code></pre>
  
  <p>I'm using the RCP-Designer (BIRT 2.1.3). How can i get the other rows as well?</p>