SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function intDiv (children 1)
     ExpressionList (children 2)
      Function materialize (children 1)
       ExpressionList (children 1)
        Function toInt32 (children 1)
         ExpressionList (children 1)
          Literal UInt64_1
      Literal Int64_-9223372036854775808