text: set hive.fetch.task.conversion=more;
  
  DESCRIBE FUNCTION lpad;
  DESCRIBE FUNCTION EXTENDED lpad;
  
  EXPLAIN SELECT
    lpad('hi', 1, '?'),
    lpad('hi', 5, '.'),
    lpad('hi', 6, '123')
  FROM src tablesample (1 rows);
  
  SELECT
    lpad('hi', 1, '?'),
    lpad('hi', 5, '.'),
    lpad('hi', 6, '123')
  FROM src tablesample (1 rows);
  