SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function sipHash64Keyed (children 1)
     ExpressionList (children 2)
      Function tuple (children 1)
       ExpressionList (children 2)
        Function CAST (children 1)
         ExpressionList (children 2)
          Literal \'1\'
          Literal \'UInt64\'
        Function CAST (children 1)
         ExpressionList (children 2)
          Literal \'2\'
          Literal \'UInt64\'
      Function mapFromArrays (children 1)
       ExpressionList (children 2)
        Function array (children 1)
         ExpressionList
        Function array (children 1)
         ExpressionList