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| Name: libxapian30 | Distribution: openSUSE Leap 15.2 |
| Version: 1.4.5 | Vendor: openSUSE |
| Release: lp152.3.3 | Build date: Wed Feb 5 16:12:30 2020 |
| Group: Development/Libraries/C and C++ | Build host: armbuild21 |
| Size: 1856488 | Source RPM: xapian-core-1.4.5-lp152.3.3.src.rpm |
| Packager: https://bugs.opensuse.org | |
| Url: http://www.xapian.org/ | |
| Summary: Xapian search engine libraries | |
Xapian is an Open Source Probabilistic Information Retrieval framework. It offers a highly adaptable toolkit that allows developers to easily add advanced indexing and search facilities to applications. This package provides the libraries for applications using Xapian functionality
GPL-2.0
* Thu Dec 14 2017 alarrosa@suse.com
- Update to 1.4.5:
* Add Database::get_total_length() method. Previously you had to calculate
this from get_avlength() and get_doccount(), taking into account rounding
issues. But even then you couldn't reliably get the exact value when total
length is large since a double's mantissa has more limited precision than an
unsigned long long.
* Add Xapian::iterator_rewound() for bidirectional iterators, to test if the
iterator is at the start (useful for testing whether we're done when
iterating backwards).
* DatabaseOpeningError exceptions now provide errno via get_error_string()
rather than turning it into a string and including it in the exception
message.
* WritableDatabase::replace_document(): when passed a Document object which
came from a database and has unmodified values, we used to always read
those values into a memory structure. Now we only do this if the document
is being replaced to the same document ID which it came from, which should
make other cases a bit more efficient.
* Enquire::get_eset(): When approximating term frequencies we now round to the
nearest integer - previously we always rounded down.
* See also https://xapian.org/docs/xapian-core-1.4.5/NEWS
* Fri Jun 30 2017 alarrosa@suse.com
- Update to 1.4.4:
* Database::check():
+ Fix checking a single table - changes in 1.4.2 broke such checks unless
you specified the table without any extension.
+ Errors from failing to find the file specified are now thrown as
DatabaseOpeningError (was DatabaseError, of which DatabaseOpeningError is
a subclass so existing code should continue to work). Also improved the
error message when the file doesn't exist is better.
* Drop OP_SCALE_WEIGHT over OP_VALUE_RANGE, OP_VALUE_GE and OP_VALUE_LE in
the Query constructor. These operators always return weight 0 so
OP_SCALE_WEIGHT over them has no effect. Eliminating it at query
construction time is cheap (we only need to check the type of the
subquery), eliminates the confusing "0 * " from the query description,
and means the OP_SCALE_WEIGHT Query object can be released sooner.
Inspired by Shivanshu Chauhan asking about the query description on IRC.
* Drop OP_SCALE_WEIGHT on the right side of OP_AND_NOT in the Query
constructor. OP_AND_NOT takes no weight from the right so OP_SCALE_WEIGHT
has no effect there. Eliminating it at query construction time is cheap
(just need to check the subquery's type), eliminates the confusing "0 * "
from the query description, and means the OP_SCALE_WEIGHT object can be
released sooner.
* See also https://xapian.org/docs/xapian-core-1.4.4/NEWS
* Wed Feb 01 2017 alarrosa@suse.com
- Update to 1.4.3:
* MSet::snippet(): Favour candidate snippets which contain more of a diversity
of matching terms by discounting the relevance of repeated terms using an
exponential decay. A snippet which contains more terms from the query is
likely to be better than one which contains the same term or terms multiple
times, but a repeated term is still interesting, just less with each
additional appearance. Diversity issue highlighted by Robert Stepanek's
patch in https://github.com/xapian/xapian/pull/117 - testcases taken from his
patch.
* MSet::snippet(): New flag SNIPPET_EMPTY_WITHOUT_MATCH to get an empty snippet
if there are no matches in the text passed in. Implemented by Robert
Stepanek.
* Round MSet::get_matches_estimated() to an appropriate number of significant
figures. The algorithm used looks at the lower and upper bound and where the
estimate sits between them, and then picks an appropriate number of
significant figures. Thanks to Sébastien Le Callonnec for help sorting out a
portability issue on OS X.
* Add Database::locked() method - where possible this non-invasively checks if
the database is currently open for writing, which can be useful for
dashboards and other status reporting tools.
* See also https://xapian.org/docs/xapian-core-1.4.3/NEWS
- Update to 1.4.2:
* Add XAPIAN_AT_LEAST(A,B,C) macro.
* MSet::snippet(): Optimise snippet generation - it's now ~46% faster in a
simple test.
* Add Xapian::DOC_ASSUME_VALID flag which tells Database::get_document() that
it doesn't need to check that the passed docid is valid. Fixes #739,
reported by Germán M. Bravo.
* TfIdfWeight: Add support for the L wdf normalisation. Patch from Vivek Pal.
* BB2Weight: Fix weights when database has just one document. Our existing
attempt to clamp N to be at least 2 was ineffective due to computing
N - 2 < 0 in an unsigned type.
* DPHWeight: Fix reversed sign in quadratic formula, making the upper bound a
tiny amount higher.
* DLHWeight: Correct upper bound which was a bit too low, due to flawed logic
in its derivation. The new bound is slightly less tight (by a few percent).
* DLHWeight,DPHWeight: Avoid calculating log(0) when wdf is equal to the
document length.
* TermGenerator: Handle stemmer returning empty string - the Arabic stemmer
can currently do this (e.g. for a single tatweel) and user stemmers can too.
Fixes #741, reported by Emmanuel Engelhart.
* Database::check(): Fix check that the first docid in each doclength chunk is
more than the last docid in the previous chunk - this code was in the wrong
place so didn't actually work.
* Database::get_unique_terms(): Clamp returned value to be <= document length.
Ideally get_unique_terms() ought to only count terms with wdf > 0, but that's
expensive to calculate on demand.
* See also https://xapian.org/docs/xapian-core-1.4.2/NEWS
* Fri Nov 11 2016 alarrosa@suse.com
- Update to 1.4.1
* Constructing a Query for a non-reference counted PostingSource object will
now try to clone the PostingSource object (as happened in 1.3.4 and
earlier). This clone code was removed as part of the changes in 1.3.5 to
support optional reference counting of PostingSource objects, but that breaks
the case when the PostingSource object is on the stack and goes out of scope
before the Query object is used. Issue reported by Till Schäfer and analysed
by Daniel Vrátil in a bug report against Akonadi:
https://bugs.kde.org/show_bug.cgi?id=363741
* Add BM25PlusWeight class implementing the BM25+ weighting scheme, implemented
by Vivek Pal (https://github.com/xapian/xapian/pull/104).
* Add PL2PlusWeight class implementing the PL2+ weighting scheme, implemented
by Vivek Pal (https://github.com/xapian/xapian/pull/108).
* LMWeight: Implement Dir+ weighting scheme as DIRICHLET_PLUS_SMOOTHING.
Patch from Vivek Pal.
* Add CoordWeight class implementing coordinate matching. This can be useful
for specialised uses - e.g. to implement sorting by the number of matching
filters.
* DLHWeight,DPHWeight,PL2Weight: With these weighting schemes, the formulae
can give a negative weight contribution for a term in extreme cases. We
used to try to handle this by calculating a per-term lower bound on the
contribution and subtracting this from the contribution, but this idea
is fundamentally flawed as the total offset it adds to a document depends on
what combination of terms that document matches, meaning in general the
offset isn't the same for every matching document. So instead we now clamp
each term's weight contribution to be >= 0.
* TfIdfWeight: Always scale term weight by wqf - this seems the logical
approach as it matches the weighting we'd get if we weighted every non-unique
term in the query, as well as being explicit in the Piv+ formula.
* Fix OP_SCALE_WEIGHT to work with all weighting schemes - previously it was
ignored when using PL2Weight and LMWeight.
* PL2Weight: Greatly improve upper bound on weight:
+ Split the weight equation into two parts and maximise each separately as
that gives an easily solvable problem, and in common cases the maximum is
at the same value of wdfn for both parts. In a simple test, the upper
bounds are now just over double the highest weight actually achieved -
previously they were several hundred times. This approach was suggested by
Aarsh Shah in: https://github.com/xapian/xapian/pull/48
+ Improve upper bound on normalised wdf (wdfn) - when wdf_upper_bound >
doclength_lower_bound, we get a tighter bound by evaluating at
wdf=wdf_upper_bound. In a simple test, this reduces the upper bound on
wdfn by 36-64%, and the upper bound on the weight by 9-33%.
* PL2Weight: Fix calculation of upper_bound when P2>0. P2 is typically
negative, but for a very common term it can be positive and then we should
use wdfn_lower not wdfn_upper to adjust P_max.
* Weight::unserialise(): Check serialised form is empty when unserialising
parameter-free schemes BoolWeight, DLHWeight and DPHWeight.
* TermGenerator::set_stopper_strategy(): New method to control how the Stopper
object is used. Patch from Arnav Jain.
* QueryParser: Fix handling of CJK query over multiple prefixes. Previously
all the n-gram terms were AND-ed together - now we AND together for each
prefix, then OR the results. Fixes #719, reported by Aaron Li.
* Add Database::get_revision() method which provides access to the database
revision number for chert and glass, intended for use by xapiand. Marked
as experimental, so we don't have to go through the usual deprecation cycle
if this proves not to be the approach we want to take. Fixes #709,
reported by German M. Bravo.
* Mark RangeProcessor constructor as `explicit`.
* See also https://xapian.org/docs/xapian-core-1.4.1/NEWS
- A compiler with support for C++11 is required, so
specify BuildRequires gcc-c++ >= 4.6
* Sat Jul 09 2016 tittiatcoke@gmail.com
- Update to 1.4.0
* API
+ Update to Unicode 9.0.0
+ Reimplement ESet and ESetIterator
+ MSetIterator and ESetIterator are now STL-compatible
random_access_iterators
* See also http://xapian.org/docs/xapian-core-1.4.0/NEWS
* Wed Apr 13 2016 tittiatcoke@gmail.com
- Update to 1.2.23
* API
+ PostingSource: Public member variables are now wrapped by methods
* chert backend
+ xapian-check now performs additional consistency checks for chert.
* omega
+ Fix HTML/XML entity decoding to be O(n) not O(n²) - indexing
HTML/XML with a lot of entities is now much faster.
* Thu May 21 2015 tittiatcoke@gmail.com
- Update to 1.2.21
* API:
+ QueryParser: Extend the set of characters allowed in the
start of a range to be anything except for '(' and characters <= ' '.
* matcher:
+ Reimplement OP_PHRASE for non-exact phrases.
+ Reimplement OP_NEAR - the new implementation consistently
requires the terms to occur at different positions, and fixes
some previously missed matches.
+ Fix a reversed check for picking the shorter position list
for an exact phrase of two terms.
+ When matching an exact phrase, if a term doesn't occur where
we want, use its actual position to advance the anchor term,
rather than just checking the next position of the anchor term.
* brass backend:
+ Fix cursor versioning to consider cancel() and reopen() as
events where the cursor version may need incrementing,
and flag the current cursor version as used when a cursor is rebuilt.
+ Avoid using file descriptions < 3 for writable database tables,
as it risks corruption if some code in the same process tries
to write to stdout or stderr without realising it is closed.
* chert backend:
+ Fix cursor versioning to consider cancel() and reopen() as
events where the cursor version may need incrementing,
and flag the current cursor version as used when a cursor is rebuilt.
+ Avoid using file descriptions < 3 for writable database tables,
as it risks corruption if some code in the same process tries
to write to stdout or stderr without realising it is closed.
* flint backend:
+ Fix cursor versioning to consider cancel() and reopen() as
events where the cursor version may need incrementing,
and flag the current cursor version as used when a cursor is rebuilt.
* remote backend:
+ Fix sort by value when multiple databases are in use and one or
more are remote.
* build system:
+ The compiler ABI check in the public API headers now issues a
warning (instead of an error) for an ABI mismatch for ABI versions
2 and later (which means GCC >= 3.4).
+ xapian-config,xapian-core.pc: When compiling with xlC on AIX, the
reported --cxxflags/--cflags now include -D_LARGE_FILES=1 as this
is defined for the library, and defining it changes the ABI of
std::string with this compiler, so it must also be defined when
building code using the Xapian API.
+ xapian-core.pc: Include --enable-runtime-pseudo-reloc in --libs
output for mingw and cygwin, like xapian-config does.
+ xapian-core.pc: Fix include directory reported by `pkg-config --cflags`.
+ xapian-config: Fix typo so cached result of test in is_uninstalled()
is actually used on subsequent calls.
+ configure: Changes in 1.2.19 broke the custom macro we use to probe
for supported compiler flags such that the flags never got used.
+ configure: Set default value for AUTOM4TE before AC_OUTPUT so the
default will actually get used.
+ soaktest: Link with libtool's '-no-install' or '-no-fast-install',
like we already do for other test programs, which means that libtool
doesn't need to generate shell script wrappers for them on most platforms.
* documentation:
+ API documentation: Minor wording tweaks and formatting improvements.
+ docs/deprecation.rst: Add deprecation of omindex --preserve-nonduplicates
which happened in 1.2.4.
+ HACKING: libtool 2.4.6 is now used for bootstrapping snapshots and releases.
* tools:
+ xapian-compact: Make sure we open all the tables of input databases at the
same revision.
+ xapian-metadata: Add 'list' subcommand to list all the metadata keys.
+ xapian-replicate: Fix connection timeout to be 10 seconds rather than 10000
seconds (the incorrect timeout has been the case since 1.2.3).
+ xapian-replicate: Set SO_KEEPALIVE for xapian-replicate's connection to the
master, and add command line option to allow setting socket-level timeouts
(SO_RCVTIMEO and SO_SNDTIMEO) on platforms that support them.
+ xapian-replicate-server: Avoid potentially reading uninitialised data if a
changeset file is truncated.
* portability:
+ Add spaces between literal strings and macros which expand to literal strings
for C++11 compatibility.
+ ValueCountMatchSpy::top_values_begin(): Fix the comparison function not to
return true for two equal elements, which manifests as incorrect sorting in
some cases when using clang's libc++ (which recent OS X versions do).
+ apitest: The adddoc5 testcase fails under clang due to an exception handling
bug, so just #ifdef out the problematic part of the testcase when building
with clang for now.
+ configure: Improve the probe for whether the test harness can use RTTI to
work for IBM's xlC compiler (which defaults to not generating RTTI).
+ Use F_DUPFD where available to dup to a file descriptor which is >= 2, rather
than calling dup() until we get one.
+ When unserialising a double, avoid reading one byte past the end of the
serialised value.
+ When unserialising a double, add missing cast to unsigned char when we check
if the value will fit in the double type.
+ Fix incorrect use of "delete" which should be "delete []". This is
undefined behaviour in C++, though the type is POD, so in practice this
probably worked OK on many platforms.
- Drop patch 0001-backends-chert-chert_cursor.cc-backends-chert-chert_.patch
due to upstream inclusion
* Sat May 02 2015 hrvoje.senjan@gmail.com
- Add 0001-backends-chert-chert_cursor.cc-backends-chert-chert_.patch
from upstream (kde#341990, http://trac.xapian.org/ticket/675)
* Thu Mar 12 2015 mpluskal@suse.com
- Update to 1.2.20
* chert backend
+ After splitting a block, we always insert the new block in
the parent right after the block it was split from - there's
no need to binary chop.
* build system
+ Generate and install a file for pkg-config.
+ configure: Update link to cygwin FAQ in error message.
* tools
+ xapian-check: For chert and brass, cross-check the position
and postlist tables to detect positional data for non-existent
documents.
* portability
+ When locking a database for writing, use F_OFD_SETLK where
available, which avoids having to fork() a child process to
hold the lock. This currently requires Linux kernel >= 3.15,
but it has been submitted to POSIX so hopefully will be widely
supported eventually. Thanks to Austin Clements for pointing
out this now exists.
+ Fix detection of fdatasync(), which appears to have been
broken practically forever - this means we've probably been
using fsync() instead, which probably isn't a big additional
overhead. Thanks to Vlad Shablinsky for helping with Mac
OS X portability of this fix.
+ configure: Define MINGW_HAS_SECURE_API under mingw to get
_putenv_s() declared in stdlib.h.
+ Use POSIX O_NONBLOCK in preference to O_NDELAY - the
semantics of the latter differ between BSD and System V.
+ According to POSIX, strerror() may not be thread safe, so
use alternative thread-safe ways to translate errno values
where possible.
+ On Microsoft Windows, avoid defining EADDRINUSE, etc if
they're already defined, and use WSAE* constants un-negated -
they start from a high value so won't collide with E*
constants.
* Fri Feb 20 2015 mpluskal@suse.com
- Tiny spec file cleanups
- Add gpg signature
* Tue Oct 21 2014 tittiatcoke@gmail.com
- Update to 1.2.19
- API:
* Xapian::BM5Weight:
+ Improve BM25 upper bound in the case when our wdf upper
bound > our document length lower bound.
+ Pre-multiply termweight by (param_k1 + 1) rather than
doing it for every weighted term in every document considered.
- testsuite:
* Don't report apparent leaks of fds opened on /dev/urandom
- matcher:
* Fix false matches reported for non-exact phrases in some cases.
- build system:
* For Sun's C++ compiler, pass -library=Crun separately since
libtool looks for " -library=stlport4 " (with the spaces).
* Remove .replicatmp (created by the test suite) upon "make clean".
- documentation:
* include/xapian/compactor.h: Fix formatting of doxygen comment.
* HACKING: freecode no longer accepts updates, so drop that item
from the release checklist.
* docs/overview.rst: Add missing database path to example of using
xapian-progsrv in a stub database file.
- portability:
* Suppress unused typedef warnings from debugging logging macros,
which occur in functions which always exit via throwing an
exception when compiling with recent versions of GCC or clang.
* Fix debug logging code to compile with clang.
/usr/lib/libxapian.so.30 /usr/lib/libxapian.so.30.4.0
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