DescribeQuery (children 1)
 TableExpression (children 1)
  Function format (children 1)
   ExpressionList (children 3)
    Identifier JSONEachRow
    Literal \'a String, b Int64\'
    Literal \' {"a": "Hello", "b": 111} {"a": "World", "b": 123} {"a": "Hello", "b": 111} {"a": "World", "b": 123} \'
