title: Column or global variable not found
body: <p>The issue is when querying a table created using Aqua Data Studio in our IBM DB2 database, column names can't be specified unless I use the system name. Tables made a short time ago don't have this issue. The query can find the column names just fine in them. There also is not a problem using wildcards and the column names display just fine. 
      For clarity:</p>
  
  <ul>
  <li>this works : SELECT * FROM WUNITS.DVIRS</li>
  <li>this works : SELECT ID___00001 FROM WUNITS.DVIRS</li>
  <li>This doesn't : SELECT Id FROM WUNITS.DVIRS </li>
  <li><strong>This does work for older tables created the same way</strong> : SELECT Id FROM WUNITS.DVIRS </li>
  </ul>
  
  <p>Here is a screenshot of the column definitions</p>
  
  <p><a href="https://i.stack.imgur.com/JL4fZ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/JL4fZ.png" alt="enter image description here"></a></p>
  
  <p>What am I doing wrong?</p>