title: Redshift Aginity Workbench - ERROR: 42703: column "XXX" does not exist in table_y
body: <p>I've been using MySQL Workbench for a while and now I need to work on Aginity - I'm trying to run a simple script:</p>
  
  <pre><code>select min(date)
  from table_y 
  where column_header = "XXX"
  </code></pre>
  
  <p>Yet I get this error: </p>
  
  <p><code>ERROR: 42703: column "XXX" does not exist in table_y</code></p>
  
  <p>Does the Where command works differently in Aginity than in MySQL Workbench? How do I solve for this error? </p>