title: Zepplin: truncated output with self defined sql interpreter
body: <p>I use Zeppelin 0.7.2 and created for testing purposes an own "interpreter" for directly querying a sql database using jdbc. If I use the sql query <code>select col from table</code> in zeppelin, check the scatter plot view or download the data as csv file from the inbuilt view I get only about 7.800 rows. The interpreter is configured with <code>common.max_count=1000000000</code> and <code>zeppelin.interpreter.output.limit=102400</code></p>
  
  <p>If I use the same query with a sql client I get about 22.000 row.</p>
  
  <p>So I wonder why there is a difference.</p>