search for: get_matches_lower_bound

Hello, As I know, get_matches_estimated() return an estimate for the number of documents with matches the query. But now, I found it get a disparity between the return value and real mathced number. For an example: the real matched number is 58, but the return value is 458; so when the users click the hinder page, get a blank page ... so they often complain to me. I found that the main reason is

I've uploaded Xapian 1.0.20 (including Search::Xapian 1.0.20.0), which as usual you can download from: http://xapian.org/download The most notable changes in this release are: Xapian::MSet: * Fix incorrect values reported by get_matches_estimated(), get_matches_lower_bound(), and get_matches_upper_bound() in certain cases when sorting and collapsing (ticket#464). getopt-related build failures: * Fix build failure in xapian-core and omega on Mac OS X and possibly some other platforms (regression caused by fix for getopt-related warnings on Cygwin in 1.0.19)....

...cl serialise_mset_pre_30_5(class Xapian::MSet const &)" (?serialise_mset_pre_30_5@@YA?AV?$basic_string at DU?$char_traits at D@std@@V?$allocator at D@2@@std@@ABVMSet at Xapian@@@Z) ???? libnet.lib(serialise.obj) : error LNK2019: ????????? "public: unsigned int __thiscall Xapian::MSet::get_matches_lower_bound(void)const " (?get_matches_lower_bound at MSet@Xapian@@QBEIXZ)??????? "class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > __cdecl serialise_mset_pre_30_5(class Xapian::MSet const &)" (?serialise_mset_pre_30_5@@YA?AV?$basic_st...