MYSQL_ROW_OFFSET
mysql_stmt_row_seek(MYSQL_STMT *stmt,
                    MYSQL_ROW_OFFSET offset)
          Sets the row cursor to an arbitrary row in a statement result
          set. The offset value is a row offset that
          should be a value returned from
          mysql_stmt_row_tell() or from
          mysql_stmt_row_seek(). This
          value is not a row number; if you want to seek to a row within
          a result set by number, use
          mysql_stmt_data_seek()
          instead.
        
          This function requires that the result set structure contains
          the entire result of the query, so
          mysql_stmt_row_seek() may be
          used only in conjunction with
          mysql_stmt_store_result().
        
          The previous value of the row cursor. This value may be passed
          to a subsequent call to
          mysql_stmt_row_seek().