SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function JSONExtractKeysAndValuesRaw (children 1)
     ExpressionList (children 1)
      Literal \'{"a": "hello", "b": [-100, 200.0, 300], "c":{"d":[121,144]}}\'
