SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   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 tuple (children 1)
       ExpressionList (children 1)
        Literal NULL
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function numbers (children 1)
       ExpressionList (children 1)
        Literal UInt64_2
