DescribeQuery (children 1)
 TableExpression (children 1)
  Function format (children 1)
   ExpressionList (children 2)
    Identifier JSONEachRow
    Literal \'{"x" : {"key1" : [["2020-01-01 00:00:00"]], "key2" : [["2020-01-01"]]}}\\n{"x" : {"key1" : [["2020-01-01"]], "key2" : [["Some string"]]}}\'