SelectWithUnionQuery (children 2)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 5)
    Literal \'Hello & world\' (alias s)
    Literal \'Hello\\n<World>\'
    Function toDateTime (alias time) (children 1)
     ExpressionList (children 1)
      Literal \'2001-02-03 04:05:06\'
    Function arrayMap (alias arr) (children 1)
     ExpressionList (children 2)
      Function lambda (children 1)
       ExpressionList (children 2)
        Function tuple (children 1)
         ExpressionList (children 1)
          Identifier x
        Function toString (children 1)
         ExpressionList (children 1)
          Identifier x
      Function range (children 1)
       ExpressionList (children 1)
        Literal UInt64_10
    Function tuple (alias tpl) (children 1)
     ExpressionList (children 2)
      Identifier s
      Identifier time
   Set
 Identifier XML