SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 3)
    Function array (alias t) (children 1)
     ExpressionList (children 1)
      Function tuple (children 1)
       ExpressionList (children 2)
        Function materialize (children 1)
         ExpressionList (children 1)
          Literal \'1\'
        Function materialize (children 1)
         ExpressionList (children 1)
          Literal UInt64_2
    Function tupleElement (children 1)
     ExpressionList (children 2)
      Function arrayElement (children 1)
       ExpressionList (children 2)
        Identifier t
        Literal UInt64_1
      Literal UInt64_1
    Function tupleElement (children 1)
     ExpressionList (children 2)
      Function arrayElement (children 1)
       ExpressionList (children 2)
        Identifier t
        Literal UInt64_1
      Literal UInt64_2