title: Query to see if records start_date and end_date fall in between date range
body: <p>I have a holiday record that has a start_date and an end_date</p>
  
  <p>I want to do a query where I have to dates '2015-05-05' and '2015-06-05' I want to see which holiday records fall in between these dates and could overlay so for example one holiday record may have a start_date of '2015-06-01' and end_date of '2015-07-10'. I would want that to be picked up in the query</p>
  
  <p>How would you write a query to do so?</p>