title: Can anybody give the some hints on "manager.SqlManager: Executing SQL statement: SELECT t.* FROM `emp` AS t LIMIT 1" in sqoop?
body: <p>In some sqoop programs, during execution we are receiving limit1 statement.
  What is it? And why is MR generating this?</p>
  
  <blockquote>
    <p>manager.SqlManager: Executing SQL statement: SELECT t.* FROM `emp` AS t LIMIT 1" in sqoop?</p>
  </blockquote>