title: Netezza - insert multiple rows is slow
body: <p>How do I insert multiple rows at the same time in Netezza? I have about 20k records to insert but it takes 1 hr (!) to put them all in using single inserts </p>
  
  <pre><code>INSERT INTO MYTABLE VALUES (2, 2, 2, 'E') , (3, 4, 5, 'Z') --doesn't work
  </code></pre>
  
  <p>This is what I'm using right now</p>
  
  <pre><code>INSERT INTO MYTABLE VALUES (2, 2, 2, 'E'); 
  INSERT INTO MYTABLE VALUES (3, 4, 5, 'Z');
  ...
  </code></pre>