SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function sipHash64Keyed (children 1)
     ExpressionList (children 2)
      Function materialize (children 1)
       ExpressionList (children 1)
        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\'
      Literal NULL
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function numbers (children 1)
       ExpressionList (children 1)
        Literal UInt64_2
