title: AWS Athena - explain query plan
body: <p>Can I use 'explain' statement in AWS Athena? (For reviewing query's plan)
  I tried to use explain statement in Athena, but I met below error message.</p>
  
  <p>Your query has the following error(s):</p>
  
  <p>Queries of this type are not supported (Service: AmazonAthena; Status Code: 400; Error Code: InvalidRequestException</p>