https://fedorahosted.org/389/ticket/537 https://fedorahosted.org/389/attachment/ticket/537/0001-Ticket-537-Improv... Fix description: The index range search function index_range _read_ext was written to call idl_fetch_ext to get an idlist belonging to one key. Then add it to the main idlist as long as the key satisfiles the range search filter condition. This patch introduces a new range search function idl_new_ range_fetch to the new idl code, which generates an idlist in one idl function that eliminates the redundancy such as generating idlist and cursor per key. This patch only implements the new idl version. If idl_new is not set, the existing code is executed.