API:
* PostingSource: Public member variables are now wrapped by methods (mostly
getters and/or setters, depending on whether they should be readable,
writable or both). In 1.3.5, the public members variables have been
deprecated - we've added the replacement methods in 1.2.23 as well to make
it easier for people to migrate over.
chert backend:
* xapian-check now performs additional consistency checks for chert. Reported
by Jean-Francois Dockes and Bob Cargill via xapian-discuss.
documentation:
* Update links to Xapian website and trac to use https, which is now supported,
thanks to James Aylett.
portability:
* On older Linux kernels, rename() of a file within a directory on NFS can
sometimes erroneously fail with EXDEV. This should only happen if you
try to rename a file across filing systems, so workaround this issue by
retrying up to 5 times on EXDEV (which should be plenty to avoid this
bug, and we don't want to risk looping forever). Fixes#698, reported by
Mark Dufour.
API:
* Add FLAG_CJK_NGRAM for QueryParser and TermGenerator. Has the same effect as
setting the environment variable XAPIAN_CJK_NGRAM. Fixes#180, reported by
Richard Boulton, with contributions from Pavel Strashkin, Mikkel Kamstrup
Erlandsen and Brandon Schaefer.
* Fix bug parsing multiple non-exclusive filter terms - previously this could
result in such filters effectively being ignored.
* Fix Database::get_doclength_lower_bound() over multiple databases when some
are empty or consist only of zero-length documents. Previously this would
report a lower bound of zero, now it reports the same lowest bound as a
single database containing all the same documents.
* Make Database::get_wdf_upper_bound("") return 0.
* Mark constructors taking a single argument as "explicit" to avoid unwanted
implicit conversions.
testsuite:
* If command line option --verbose/-v isn't specified, set the verbosity level
from environmental variable VERBOSE.
* Skip timed tests if $AUTOMATED_TESTING is set. Fixes#553, reported by
Dagobert Michelsen.
* Don't leave an extra fd open when starting xapian-tcpsrv for remotetcp tests.
* apitest: Revert disabling of part of adddoc5 for clang - the test failure was
in fact due to a bug in 1.3.x, and 1.2.x was never affected.
* apitest: Tweak bounds checks in dbstats1 testcase - multi backends should
give tight bounds.
brass backend:
* Format limit on docid now correctly imposed when sizeof(int) > 4.
* Avoid potential DB corruption with full-compaction when using 64K blocks.
chert backend:
* Format limit on docid now correctly imposed when sizeof(int) > 4.
* Avoid potential DB corruption with full-compaction when using 64K blocks.
flint backend:
* Format limit on docid now correctly imposed when sizeof(int) > 4.
* Avoid potential DB corruption with full-compaction when using 64K blocks.
remote backend:
* Fix to handle total document length exceeding 34,359,738,368. (Fixes#678,
reported by matf).
* Avoid dividing by zero when getting the average length for an empty database.
* Stop apparent error from remote server when read-only client disconnects. A
read-only client just closes the connection when done, but the server
previously reported "Got exception NetworkError: Received EOF", which sounds
like there was a problem. Now we just say "Connection closed" here, and
"Connection closed unexpectedly" if the client connects in the middle of an
exchange. Possibly fixes#654, reported by German M. Bravo.
* Give a clearer error message when the client and server remote protocol
versions aren't compatible.
* Check length of key in MSG_SETMETADATA.
build system:
* pkg-config: Fix library name in .pc file to say "xapian" not "xapian-core".
Reported by Eric Lindblad to the xapian-devel list.
* Private symbol decode_length() is no longer visible outside the library.
documentation:
* Stop maintaining ChangeLog files. They make merging patches harder, and stop
'git cherry-pick' from working as it should. The git repo history should be
sufficient for complying with GPLv2 2(a).
* Strip out "quickstart" examples which are out of date and rather redundant
with the "simple" examples.
* Correct documentation of Enquire::get_query(). If no query has been set,
the documentation said Xapian::InvalidArgumentError was thrown, but in
fact we just return a default initialised Query object (i.e. Query()). This
seems reasonable behaviour and has been the case since Xapian 0.9.0.
* Document xapian-compact --blocksize takes an argument.
* Update snowball website link to snowballstem.org.
tools:
* xapian-replicate: Fix replication for files > 4GB on 32-bit platforms.
Previously replication would fail to copy a file whose size didn't fit in
size_t. Fixes#685, reported by Josh Elsasser.
* xapian-tcpsrv: Better error if -p/--port not specified
* quest: Support `-f cjk_ngram`.
examples:
* xapian-metadata: Extend "list" subcommand to take optional key prefix.
portability:
* Fix new warnings from recent versions of GCC and clang.
* Add spaces between literal strings and macros which expand to literal strings
for C++11 compatibility in __WIN32__-specific code.
* Need <unistd.h> for unlink() on FreeBSD, reported by Germán M. Bravo via
github PR 72.
* Fix testsuite to build when S_ISSOCK() isn't defined.
* Don't provide our own implementation of sleep() under __WIN32__ if there
already is one - mingw provides one, and in some situations it seems to clash
with ours. Reported to xapian-discuss by John Alveris.
* Add missing '#include <arpa/inet.h>' to htons(). Seems to be implicitly
included on most platforms, but Interix needs it. Reported by Eric Lindblad
on xapian-discuss.
* Disable "<FUNCTION> is expected to return a value" warning from Sun's C++
compiler, as it fires for functions ending in a "throw" statement. Genuine
instances will be caught by compilers with superior warning machinery.
* Prefer scalbn() to ldexp() where possible, since the former doesn't ever set
errno.
* '#include <config.h>' in the "simple" examples, as when compiling with xlC on
AIX, _LARGE_FILES gets defined by AC_SYS_LARGEFILE to enable large file
support, and defining this changes the ABI of std::string, so it also needs
to be defined when compiling code using Xapian.
* On cygwin, include <arpa/inet.h> instead of winsock headers for htons() and
htonl().
* Include <cygwin/version.h> for CYGWIN_VERSION_API_MAJOR.
* Avoid referencing static members via an object in that object's own
definition, as this doesn't work with all compilers (noted with GCC 3.3), and
is a bit of an odd construct anyway. Reported by Eric Lindblad on
xapian-discuss.
* GCC < 3.4.2 lacks operator<< overloads for unsigned long long on some
platforms, so simply work around this by using str(), as this isn't
performance sensitive code. Reported by Eric Lindblad on xapian-discuss.
* Fix delete which should be delete[] in brass backend cursor code.
Problems found locating distfiles:
Package cabocha: missing distfile cabocha-0.68.tar.bz2
Package convertlit: missing distfile clit18src.zip
Package php-enchant: missing distfile php-enchant/enchant-1.1.0.tgz
Otherwise, existing SHA1 digests verified and found to be the same on
the machine holding the existing distfiles (morden). All existing
SHA1 digests retained for now as an audit trail.
API:
* QueryParser: Extend the set of characters allowed in the start of a range to
be anything except for '(' and characters <= ' '. This better matches what's
accepted for a range end (anything except for ')' and characters <= ' ').
Reported by Jani Nikula.
matcher:
* Reimplement OP_PHRASE for non-exact phrases. The previous implementation was
buggy, giving both false positives and false negatives in rare cases when
three or more terms were involved. Fixes#653, reported by Jean-Francois
Dockes.
* 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. The difference this makes isn't dramatic, but can be
measured (at least with cachegrind). Thanks to kbwt for spotting this.
* 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. Fixes#675, reported by Germán M. Bravo.
* 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. (Partly addresses #651)
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. Fixes#675, reported by Germán M. Bravo.
* 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. (Partly addresses #651)
* 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.
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. Fixes#675, reported by Germán M. Bravo.
remote backend:
* Fix sort by value when multiple databases are in use and one or more are
remote. This change necessitated a minor version bump in the remote
protocol. Fixes#674, reported by Dylan Griffith. If you are upgrading a
live system which uses the remote backend, upgrade the servers before the
clients.
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). The changes in these ABI versions are bug fixes
for corner cases, so there's a good chance of things working - e.g. building
xapian-bindings with GCC 5.1 (which defaults to ABI version 8) against
xapian-core built with GCC 4.9 (which defaults to ABI version 2) seems to
work OK. A warning is still useful as a clue to what is going on if linking
fails due to a missing symbol.
* 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`.
This bug was harmless if xapian-core was installed to a directory which was
on the default header search path (such as /usr/include).
* xapian-config: Fix typo so cached result of test in is_uninstalled() is
actually used on subsequent calls. Fixes#676, reported (with patch) by Ryan
Schmidt.
* 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. This release
fixes this problem.
* configure: Set default value for AUTOM4TE before AC_OUTPUT so the default
will actually get used. Only relevant when building in maintainer mode
(e.g. from git).
* 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.
* Generate and install a file for pkg-config. (Fixes#540)
* configure: Update link to cygwin FAQ in error message.
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: Update URL.
* HACKING: libtool 2.4.6 is now used for bootstrapping snapshots and releases.
* include/xapian/weight.h: Document the enum stat_flags values.
* docs/postingsource.rst: Use a modern class in postingsource example. (Noted
by James Aylett)
* docs/deprecation.rst,docs/replication.rst: Fix typos.
* Update doxygen configuration files to avoid warnings about obsolete tags from
newer doxygen versions.
* HACKING: Update details of building Xapian packages.
tools:
* xapian-compact: Make sure we open all the tables of input databases at the
same revision. (Fixes#649)
* 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. Fixes#546,
reported by nkvoll.
* xapian-replicate-server: Avoid potentially reading uninitialised data if a
changeset file is truncated.
* xapian-check: For chert and brass, cross-check the position and postlist
tables to detect positional data for non-existent documents.
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.
* Fix clang warnings on OS X. Reported by Germán M. Bravo.
* Fix examples to build with IBM's xlC compiler on AIX - they were failing due
to _LARGE_FILES being defined for the library build but not for the examples,
and defining this changes the ABI of std::string with this compiler.
* 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).
* Fix to build with Sun's C++ compiler.
* 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. In practice this was harmless on most platforms, as
dbl_max_mantissa is 255 for IEEE-754 format doubles, and at least GCC's
std::string keeps the buffer nul-terminated. Reported by Germán M. Bravo in
github PR#67.
* When unserialising a double, add missing cast to unsigned char when we check
if the value will fit in the double type. On machines with IEEE-754 doubles
(which is most current platforms) this happened to work OK before. It would
also have been fine on machines where char is unsigned by default.
* 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.
* 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.
debug code:
* Fix some overly strict assertions in flint, which caused apitest's
cursordelbug1 to fail with assertions on.
* Add more assertions to the chert backend code.
API:
* Xapian::BM5Weight:
+ Improve BM25 upper bound in the case when our wdf upper bound > our
document length lower bound. Thanks to Craig Macdonald for pointing out
this trick.
+ 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 - at least on
Linux, something in the C library seems to lazily open it, and the report of
a possible leak followed by assurance that it's OK really is just noise we
can do without.
matcher:
* Fix false matches reported for non-exact phrases in some cases. Fixes the
reduced testcase in #657, reported by Jean-Francois Dockes.
brass backend:
* Only full sync after writing the final base file (only affects Max OS X).
chert backend:
* Only full sync after writing the final base file (only affects Max OS X).
flint backend:
* Only full sync after writing the final base file (only affects Max OS X).
build system:
* For Sun's C++ compiler, pass -library=Crun separately since libtool looks for
" -library=stlport4 " (with the spaces). (fixes#650)
* 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. (fixes#657, reported by
Germán M. Bravo)
debug code:
* Add missing RETURN() markup for debug logging in a few places, highlighted by
warnings from recent GCC.
* Fix incorrect return types in debug logging annotations so that code compiles
when configured with --enable-log.
API:
* Document: Fix get_docid() to return the docid for the sub-database (as it
is explicitly documented to) for Document objects passed to functors like
KeyMaker during the match. (fixes#636, reported by Jeff Rand).
* Document: Don't store the termname in OmDocumentTerm - we were only using it
in get_description() output and an exception message. Speeds up indexing
etext.txt using simpleindex by 0.4%, and should reduce memory usage a bit
too. (Change inspired by comments from Vishesh Handa on xapian-devel).
* Database: Iterating the values in a particular slot is now a bit more
efficient for inmemory and remote backends (but still slow compared to
flint, chert and brass).
testsuite:
* apitest: Expand crashrecovery1 to check that the expected base files exist
and ones which shouldn't exist don't.
* queryparsertest: Fix testcase for empty wildcard followed by negation to
enable FLAG_LOVEHATE so the negation is actually parsed. Fortunately the
fixed testcase passes.
matcher:
* OP_SYNONYM: avoid fetching the doclength if the weighting scheme doesn't
need it and the calculated wdf for the synonym is <= doclength_lower_bound
for the current subdatabase. (fixes#360)
build system:
* Releases are now bootstrapped with libtool 2.4.2 instead of 2.4, and with
config.guess and config.sub updated to the latest versions.
documentation:
* Add an example of initializing SimpleStopper using a file listing stopwords.
(Patch from Assem Chelli)
* Improve the descriptions of the stem_strategy values in the API docs.
(Reported by "oilap" on #xapian)
* docs/sorting.rst: Fix incorrect parameter types in Xapian::Weight
subclass example.
* docs/glossary.rst: Add definition of "collection frequency".
* HACKING:
+ makeindex is now in Debian package texlive-binaries.
+ Replace a link to the outdated autotools "goat book" with a link to the
"Portable Shell" chapter of the autoconf manual.
* include/xapian/base.h: Remove very out of date comments talking about atomic
assignment and locking - since 0.5.0 we've adopted a "user locks" policy.
(Reported by Jean-Francois Dockes)
examples:
* delve:
+ Add -A <prefix> option to list all terms with a particular prefix.
+ Send errors to stderr not stdout.
+ If -v is specified more than once, show even more info in some cases.
(NEWS file claimed this was backported in 1.2.15, but it actually wasn't).
* quest:
+ Add --default-op option.
+ Add --weight option to allow the weighting scheme to be specified.
portability:
* Explicitly '#include <algorithm>' for std::max(), fixing build with VS2013.
(Fixes#641, reported by "boomboo").
* Fix testcase blocksize1 not to try to delete an open database, which isn't
possible under Windows. (Fixes#643, reported by Chris Olds)
* docs/quickstart.rst: Split --cxxflags and --libs for portability (noted by
"Hurricane Tong" on xapian-devel).
* Fix warnings with clang 5.0.
debug code:
* Add assertions that weighting scheme upper bounds aren't exceeded.
API:
* Enquire::set_sort_by_relevance_then_value() and
Enquire::set_sort_by_relevance_then_key(): Fix sense of reverse parameter.
Reported by "boomboo" on IRC.
* BM25Weight: Fix case where (k1 == 0 || b == 0) but k2 != 0. Reported by
"boomboo" on IRC.
* Unicode::tolower(): Fix to give correct results for U+01C5, U+01C8, U+01CB,
and U+01F2 (previously these were left unchanged).
* PositionIterator,PostingIterator,TermIterator,ValueIterator: Don't segfault
if skip_to() or check() is called on an iterator which is already at_end().
Reported by David Bremner.
* ValueCountMatchSpy: get_description() on a default-constructed
ValueCountMatchSpy object no longer fails when xapian-core is built with
--enable-log.
* ValueCountMatchSpy: get_total() on a default-constructed ValueCountMatchSpy
object now returns 0 rather than segfaulting.
testsuite:
* Automatically probe for and hook in eatmydata to the testsuite using the
wrapper script it now includes.
* Fix apitest to build when brass, chert or flint are disabled.
* If -v/--verbose is specified more than once to a test program, show the
diagnostic output for passing tests as well as failing/skipped ones.
* queryparsertest: Change qp_scale1 to time 5 repetitions of the large query to
help average out variations.
* queryparsertest: Add test coverage for explicit synonym of a term with a
prefix (e.g. ~foo:search).
* apitest: Remove code from registry* testcases which tries to test the
consequences of throwing an exception from a destructor - it's complex to
ensure we don't leak memory while doing this (it seems GCC doesn't release
the object in this case, but clang does), and it's generally frowned upon,
plus C++11 makes destructors noexcept by default.
* Fix "make check" to actually removed cached databases first, as is
intended.
brass backend:
* Fix handling of invalid block sizes passed to Xapian::Brass::open() - the
size gets fixed as documented, but the uncorrected size was passed to the
base file (and abort() was called if 0 was passed).
* Validate "dir_end" when reading a block. (fixes#592)
* When moving a cursor on a read-only table, check if the block we want is in
the internal cursor. We already do this for a writable table, as it is
necessary for correctness, but it's a cheap check and may avoid asking the
OS for a block we actually already have.
* Correctly report the database as closed rather than 'Bad file descriptor'
in certain cases.
* Reuse a cursor for reading values from valuestreams rather than creating
a new one each time. This can dramatically reduce the number of blocks
redundantly reread when sorting by value. The rereads will generally get
served from VM cache, but there's still an overhead to that.
chert backend:
* Fix handling of invalid block sizes passed to Xapian::Chert::open() - the
size gets fixed as documented, but the uncorrected size was passed to the
base file (and abort() was called if 0 was passed).
* Validate "dir_end" when reading a block. (fixes#592)
* When moving a cursor on a read-only table, check if the block we want is in
the internal cursor. We already do this for a writable table, as it is
necessary for correctness, but it's a cheap check and may avoid asking the
OS for a block we actually already have.
* Correctly report the database as closed rather than 'Bad file descriptor'
in certain cases.
* Reuse a cursor for reading values from valuestreams rather than creating
a new one each time. This can dramatically reduce the number of blocks
redundantly reread when sorting by value. The rereads will generally get
served from VM cache, but there's still an overhead to that.
flint backend:
* Fix handling of invalid block sizes passed to Xapian::Flint::open() - the
size gets fixed as documented, but the uncorrected size was passed to the
base file (and abort() was called if 0 was passed).
* Validate "dir_end" when reading a block. (fixes#592)
* When moving a cursor on a read-only table, check if the block we want is in
the internal cursor. We already do this for a writable table, as it is
necessary for correctness, but it's a cheap check and may avoid asking the
OS for a block we actually already have.
* Correctly report the database as closed rather than 'Bad file descriptor'
in certain cases.
build system:
* configure: Improve reporting of GCC version.
* Use -no-fast-install on platforms where -no-install causes libtool to emit a
warning.
* docs/Makefile.am: Fix handling of MAINTAINER_NO_DOCS.
* Include UnicodeData.txt and the script to generate the unicode tables from
it.
* Compress source tarballs with xz instead of gzip.
* Split XAPIAN_LIBS out of XAPIAN_LDFLAGS so that -l flags for libraries
configure detects are needed appear after -L flags specified by the user
that may be needed to find such libraries. (fixes#626)
* XO_LIB_XAPIAN now handles the user specifying a relative path in
XAPIAN_CONFIG, e.g.: "./configure XAPIAN_CONFIG=../xapian-core/xapian-config"
* Adjust XO_LIB_XAPIAN to strip _gitNNN suffix from snapshot versions.
* configure: Handle git snapshot naming when calculating REVISION.
* configure: Enable -fshow-column for GCC - things like vim's quickfix mode
will then jump to the appropriate column for a compiler error or warning, not
just the appropriate line.
* configure: Report GCC version in configure output.
documentation:
* postingsource.rst: Clarify a couple of points (reported by "vHanda" on IRC).
* The API documentation shipped with the release is now generated with
doxygen 1.8.5 instead of 1.5.9, which is most evident in the different
HTML styling newer doxygen uses.
* Document how Utf8Iterator handles invalid UTF-8 in API documentation.
* Improve how descriptions of deprecated features appear in the API
documentation.
* docs/remote_protocol.rst: Correct error in documentation of REPLY_DOCDATA
message.
* docs/overview.rst: Correct documentation for how to specify "prog" remote
databases in stub files.
* Direct users to git in preference to SVN - we'll be switching entirely in
the near future.
portability:
* Protect the ValueIterator::check() method against Mac OS X SDK headers
which define a check() macro.
* Fix warning from xlC compiler.
* Avoid use of grep -e in configure, as /usr/bin/grep on Solaris doesn't
support -e.
* Fix check for flags which might be needed for ANSI mode for compilers called
'cxx'.
* configure: Improve handling of Sun's C++ compiler - trick libtool into not
adding -library=Cstd, and prefer -library=stdcxx4 if supported. Explicitly
add -library=Crun which seems to be required, even though the documentation
suggests otherwise.
* configure: clang doesn't support -Wstrict-null-sentinel or -Wlogical-op, so
don't pass it these options.
* Fix build errors and warnings with mingw.
* Suppress "unused local typedef" warnings from GCC 4.8.
* If the compiler supports C++11, use static_assert to implement
CompileTimeAssert.
* tests/zlib-vg.c: Fix two warnings when compiled with clang.
* Fix failure when built with -D_GLIBCXX_DEBUG - we were modifying the top()
element of a heap before calling pop(), such that the heap comparison
operation (which is called when -D_GLIBCXX_DEBUG is on to verify the heap is
valid) would read off the end of the data. In a normal build, this issue
would likely never manifest.
* configure: When generating ABI compatibility checks in xapian/version.h, pass
$CXXFLAGS and $CPPFLAGS to $CXXCPP as they could contain options which affect
the ABI (such as -fabi-version for GCC). (Fixes#622)
* Microsoft GUIDs in binary form have reversed byte order in the first three
components compared to standard UUIDs, so the same database would report a
different UUID on Windows to on other platforms. We now swap the bytes to
match the standard order. With this fix, the UUIDs of existing databases
will appear to change on Windows (except in rare "palindronic" cases).
* Fix a couple of issues to get Xapian to build and work on AIX.
* common/safeuuid.h: Remove bogus take-address-of from uuid handling code for
NetBSD and OpenBSD.
* Under cygwin, use cygwin_conv_path() if using a new enough cygwin version,
rather than the now deprecated cygwin_conv_to_win32_path(). Reported by
"Haroogan" on the xapian-devel mailing list.
* common/safeuuid.h: Add missing '#include <cstdlib>' and qualify free with std.
* Fix 'unused label' warning when chert backend is disabled.
* xapian.h: Add check for Wt headers being included before us and defining
'slots' as a macro - if they are, give a clear error advising how to work
around this (previously compilation would fail with a confusing error).
tools:
* xapian-chert-update: Fix -b to work rather than always segfaulting (reported
in http://bugs.debian.org/716484).
* xapian-chert-update: The documented alias --blocksize for -b has never
actually been supported, so just drop mentions of it from --help and the man
page.
* xapian-check:
+ Fix chert database check that first docid in each doclength chunk is more
than the last docid in the previous chunk - previously this didn't actually
work.
+ Fix database check not to falsely report "position table: Junk after
position data" whenever there are 7 unused bits (7 is OK, *more* than 7
isn't).
+ Fix to report block numbers correctly for links within the B-tree.
+ If the METAINFO key is missing, only report it once per table.
+ Fix database consistency checking to always open all the tables at the same
revision - not doing this could lead to false errors being reported after a
commit interrupted by the process being killed or the machine crashing.
Reported by Joey Hess in http://bugs.debian.org/724610
examples:
* quest: Add --check-at-least option.
debug code:
* Fix assertion failure for when an OrPostList decays to an AndPostList - the
ordering of the subqueries by estimated termfreq may not be the same as it
was when the OrPostList was constructed, as the subqueries may themselves
have decayed. Reported by Michel Pelletier.
* Fix -Wcast-qual warning from GCC 4.7 when configured with --enable-log.
Xapian-core 1.2.15 (2013-04-16):
API:
* QueryParser/TermGenerator: Don't include CJK codepoints which are
punctuation in N-grams.
* TermGenerator: Fix bug where we failed to generate the first bigram
from the second sequence of N-grammable CJK characters in a piece of text.
brass backend:
* Call fdatasync()/fsync() when creating the "iambrass" file.
chert backend:
* Call fdatasync()/fsync() when creating the "iamchert" file.
flint backend:
* Call fdatasync()/fsync() when creating the "iamflint" file.
tools:
* delve: If -v is specified more than once, show even more info in some cases.
Xapian-core 1.2.14 (2013-03-14):
API:
* MSet::get_document(): Don't cache retrieved Document objects unless they
were requested with fetch(). This avoids using a lot of memory when many
MSet entries are retrieved. (Fixes#604)
matcher:
* Check if a candidate document has at least the minimum weight needed
before checking positional information, which speeds up slow phrase
searches (partly addresses #394).
brass backend:
* Fix multipass compaction not to damage document values, and to merge the
database stats correctly. (fixes#615)
chert backend:
* Fix multipass compaction not to damage document values, and to merge the
database stats correctly. (fixes#615)
flint backend:
* Fix multipass compaction bug. (fixes#615)
tools:
* xapian-replicate:
+ Fix handling of delays between replication events - the subtraction of the
target time and the current time was reversed, so we wouldn't sleep when
before the deadline, but would sleep after it for the amount we'd missed it
by.
+ On Microsoft Windows, we no longer sleep for more than 43 years if the
target time for a replication event had already passed. (Fixes#472)
Xapian-core 1.2.13 (2013-01-09):
API:
* TermGenerator: Add new method TermGenerator::set_max_word_length() to allow
this limit to be adjusted by the user.
* QueryParser: Implicitly close any unclosed brackets at the end of the query
string. Patch from Sehaj Singh Kalra.
* DateValueRangeProcessor: Add extra constructor overloaded form so that in
DateValueRangeProcessor(1, "date:"), the const char * gets interpreted as
std::string rather than bool.
matcher:
* Improved fix for #590 - count all matching LeafPostList objects with a Weight
object rather than trying to prune at the MultiAndPostList level based on
max_wt (if wdf is always zero for a term, BM25 gives max_wt of 0, which lead
to us never counting that subquery.
* Fix calculation of 0.0/0.0 in some cases. This then got used as a minimum
weight, but it seems this gives -nan (at least on x86-64 Linux) so it may
have been harmless in practice.
* We no longer use the highest weighted MSet entry to calculate percentages, so
remove code which finds it.
brass backend:
* Close excess file handles before we get the fcntl lock, which avoids the
lock being released again if one is open on the lock file. Notably this
avoids a situation where multiple threads in the same process could succeed
in locking a database concurrently.
chert backend:
* Close excess file handles before we get the fcntl lock, which avoids the
lock being released again if one is open on the lock file. Notably this
avoids a situation where multiple threads in the same process could succeed
in locking a database concurrently.
flint backend:
* Close excess file handles before we get the fcntl lock, which avoids the
lock being released again if one is open on the lock file. Notably this
avoids a situation where multiple threads in the same process could succeed
in locking a database concurrently.
remote backend:
* Improve the UnimplementedError message for a MatchSpy subclass which doesn't
implement name() so it's clearer that it is this particular subclass which
can't be used remotely, rather than all MatchSpy objects.
documentation:
* valueranges.html: Update documentation to reflect change in Xapian 1.1.2 -
DateValueRangeProcessor and StringValueRangeProcessor now support a prefix or
suffix.
* Clarify that the "reverse" parameter of set_sort_by_relevance_then_value()
and set_sort_by_relevance_then_key() only affects the ordering of the
value/key part of the sort.
* docs/quickstart.html: Fix seriously outdated statement that Xapian doesn't
create the database directory - that changed in 0.7.2 (released 2003-07-11).
* HACKING: Try to make it clearer we're looking for a dual-licence on submitted
patches.
tools:
* xapian-replicate:
+ Add a --full-copy option to force a full copy to be sent. (ticket#436)
+ Add --quiet option, and be a little more verbose by default.
+ Allow files > 32G to be be copied by replication.
+ Fix "if (fd > 0)" tests in some replication code to be "if (fd >= 0)".
In practice this is unlikely to actually have caused problems since
stdin is typically still open and using fd 0.
+ Simplify how we open the .DB file on the replication slave to just call
open() once with O_CREAT, rather than once without, than stat() if that
fails, and then again with O_CREAT|O_TRUNC if stat() doesn't show an
ordinary file exists.
examples:
* quest:
+ New --flags command line option to allow setting arbitrary QueryParser
flags.
+ Align option descriptions in --help output, and make the initial letter of
such descriptions consistently lowercase.
Xapian-core 1.2.12 (2012-06-27):
build system:
* 1.2.11 had its library version information incorrectly set. This resulted in
the shared library having an incorrect SONAME - e.g. on Linux,
libxapian.so.21 instead of libxapian.so.22. This release has been made to
fix this problem.
documentation:
* AUTHORS: Add the GSoC students.
Xapian-core 1.2.11 (2012-06-26):
API:
* Add new QueryParser::STEM_ALL_Z stemming strategy, which stems all terms and
adds a Z prefix. (Patch from Sehaj Singh Kalra, fixes ticket#562)
* Add TermGenerator::set_stemming_strategy() method, with strategies which
correspond to those of QueryParser. Based on patch from Sehaj Singh Kalra,
with some tweaks for adding term positions in more cases. (Fixes ticket#563)
* Correct "BM25Weight" to "TradWeight" in exception message from TradWeight.
* We were failing to call init() for user-defined Weight objects providing the
term-independent weight. These now get called with init(0.0).
* Xapian::Auto::open_stub() now throws a Xapian::DatabaseOpeningError exception
if the stub file can't be opened. Previously we failed to check for this
condition, which resulted in us treating the file as empty.
testsuite:
* When the testsuite is using valgrind, we used to run remote servers under
valgrind too (but with --tool=none) to get consistent behaviour as valgrind's
emulation of x87 excess precision isn't exact. Now we only do this if x87 FP
instructions are actually in use (which means x86 architecture and configure
run with --disable-sse).
* Make sure XAPIAN_MAX_CHANGESETS gets unset after replication testcases which
set it, so further testcases don't waste time generating changesets.
* Improved test coverage (including more tests for closed databases -
ticket#337).
brass backend:
* After closing the database, methods which try to use the termlist would throw
FeatureUnavailableError with message "Database has no termlist", assuming
that the termlist table not being open meant it wasn't present. Fix to check
if the postlist_table is open to determine which case we're in.
chert backend:
* After closing the database, methods which try to use the termlist would throw
FeatureUnavailableError with message "Database has no termlist", assuming
that the termlist table not being open meant it wasn't present. Fix to check
if the postlist_table is open to determine which case we're in.
inmemory backend:
* Check if the database is closed in metadata_keys_begin() for InMemory
Databases.
build system:
* xapian-config: Don't interpret a missing .la file as meaning that we only
have static libraries.
documentation:
* Fix API documentation for Query constructors - both XOR and ELITE_SET can
take any number of subqueries, not only exactly two.
* Backport missing API documentation comments for operator++ and operator*
methods or PositionIterator, PostingIterator and TermGenerator.
* docs/replication.rst: Update documentation - since 1.2.5, the value of
XAPIAN_MAX_CHANGESETS determines how many changesets we keep.
* docs/admin_notes.rst: Correction - we don't "create a lock file", we "lock a
file".
* Fix API documentation for TradWeight constructor - "k1" should be "k".
portability:
* configure: Overhaul handling of compilers which pretend to be GCC. Clang
is now detected, and we only pass it warning flags it actually understands.
And we now check for symbol visibility support with Intel's compiler.
* configure: Solaris automatically pulls in library dependencies, so set
link_all_deplibs_CXX=no there.
* configure: We now check -Bsymbolic-functions for all compilers.
* configure: Enable -Wdouble-promotion for GCC >= 4.6.
* Pass -ldl last when compiling zlib-vg.so, as that seems to be needed on
Ubuntu 12.04.
* 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.
* In BM25Weight when k1 or b is zero (not the default), we used to multiply
an uninitialised double by zero, which is undefined behaviour, but in
practice will often give zero, leading to the desired results.
* xapian.h: Add check for Qt headers being included before us and defining
'slots' as a macro - if they are, give a clear error advising how to work
around this (previously compilation would fail with a confusing error).
Xapian-core 1.2.10 (2012-05-09):
API:
testsuite:
* apitest: Extend tradweight1 to test that TradWeight(0) means that wdf and
document length don't affect the weight of a term.
* termgentest: Check that TermGenerator discards words > 64 bytes.
matcher:
* Don't count unweighted subqueries of MultiAndPostList in percentage
calculations, as OP_FILTER maps to MultiAndPostList now. (ticket#590)
brass backend:
* When compacting, if the output database is empty, don't write out a metainfo
tag. Take care not to divide by zero when computing the percentage size
change for a table.
chert backend:
* When compacting, if the output database is empty, don't write out a metainfo
tag. Take care not to divide by zero when computing the percentage size
change for a table.
documentation:
* API documentation:
+ Note version when Database::close() was added.
+ Fix switched lower and upper in API documentation for Weight methods
get_doclength_lower_bound() and get_doclength_upper_bound(). Correct
maximum to minimum in get_doclength_lower_bound() comment and note that this
excludes zero length documents. Fix "An lower" to "A lower".
* docs/admin_notes.html: Mention that postlist and termlist tables also hold
value info for chert. Mention that xapian-chert-update was removed in 1.3.0.
Mention that you need to use copydatabase from 1.2.x to convert flint to
chert.
* HACKING: Update section on patches to mention git (git diff and git
format-patch), and using "-r" with normal diff, and also that ptardiff offers
a nice way to diff against an unpacked tarball.
debug code:
* Fix use of AssertEq() on NULL, which doesn't compile, at least with recent
GCC.
Xapian-core 1.2.9 (2012-03-08):
API:
* QueryParser: Fix FLAG_AUTO_SYNONYMS not to enable auto multi-word synonyms
too (but in a different way to trunk so as to not break the ABI).
matcher:
* Fix issue with running AND, OR and XOR queries against a database with no
documents in it - this was leading to a divide by zero, which led to
MSet::get_matches_estimated() reporting 2147483648 on i386.
build system:
* Remove configure's --with-stlport and --with-stlport-compiler options, as
they don't allow you to actually specify what you need to (at least to use
the Debian STLport package), and instead document what to pass to configure
to enable building with STLport (though it seems to no longer be actively
maintained, and the debug mode (which is probably the most interesting
feature now) doesn't seem to work on Debian stable).
documentation:
* Document that OP_ELITE_SET with non-term subqueries might pick subqueries
which don't match anything. Closes ticket#49.
* Document that you can define a static operator delete method in your subclass
if deallocation needs to be handled specially. (Closes ticket#554)
* Assorted minor documentation improvements.
portability:
* Address new warnings from GCC 4.6.
* Fix argument order when linking xapian-check to fix mingw build.
(ticket#567)
* Add some missing explicit header includes to fix build with STLport.
1.2.8:
API:
* Add support to TermGenerator and QueryParser for indexing and searching CJK
text using n-grams. Currently this is only enabled when the environmental
variable XAPIAN_CJK_NGRAM is set to a non-empty value.
portability:
+ Some fixes for warnings when cross-compiling to mingw.
* tests/soaktest/soaktest.cc: With Sun's compiler, random() and srandom()
aren't in <cstdlib> so we need to use <stdlib.h> instead.
1.2.7:
API:
* Document objects now track whether any document positions have been modified
so that replacing a modified document can completely skip considering
updating positions if none have changed. Currently the flint, chert, and
brass backends implement this optimisation. A common case this speeds up is
adding and/or removing boolean filter terms to/from existing documents - for
example this gives an 18% speedup for adding tags in notmuch.
portability:
* Fix -Wshadow warnings from GCC 4.6.
* Fix warning from GCC 3.3.
1.2.6:
API:
* QueryParser:
+ Add new set_max_wildcard_expansion() method to allow limiting the number of
terms a wildcard can expand to. (ticket#350)
+ If default_op is OP_NEAR or OP_PHRASE then disable stemming of the terms,
since we don't index positional information for stemmed terms by default.
* Spelling correction was failing to correctly handle words which had the same
trigram in an even number of times.
portability:
* Fix to build for mingw.
1.2.5:
API:
* Enquire::get_eset() now accepts a min_wt argument to allow the minimum wanted
weight to be specified. Default is 0, which gives the previous behaviour.
* QueryParser: Handle NEAR/<offset> and ADJ/<offset> where offset isn't an
integer the same way at the end of the query as in the middle.
* Replication:
+ Only keep $XAPIAN_MAX_CHANGESETS changeset files when generating a new one
(previously this variable only controlled if we generated changesets or
not). Closes ticket#278.
+ $XAPIAN_MAX_CHANGESETS is reread each time, rather than only when the
database is opened.
+ If you build Xapian with DANGEROUS mode enabled, changeset files now
actually have the appropriate flag set (the reader will currently throw an
exception, but that's better than quietly handling them incorrectly).
portability:
* api/compactor.cc: Add missing header <ctime> for time() (ticket#530).
* api/compactor.cc: Use msvc_posix_rename() under __WIN32__ to atomically
update stub file after compaction (ticket#525).
* Fix uninitialised variable warnings with gcc -O3.
* Eliminate std::string member of global static object used when compiled with
--enable-log which was causes problems on Mac OS X.
* Fix some issues highlighted by clang++ warnings.
1.2.4:
API:
* QueryParser:
+ Avoid a double free if Query construction throws an exception in a
particular case. Fixes ticket#515.
+ Allow phrase generators between a probabilistic prefix and the term itself
(e.g. path:/usr/local).
+ The correct window size wasn't being set in some cases when default_op was
set to OP_PHRASE.
* Enquire::get_mset():
+ Avoid pointlessly trying to allocate lots of memory if the first document
requested is larger than the size of the database.
+ An empty query now returns an MSet with firstitem set correctly -
previously firstitem was always 0 in this case.
* Document: Initialise docid to 0 when creating a document from
scratch, as documented.
* Compactor:
+ Move the database compaction and merging functionality into this new class,
and make xapian-compact a simple wrapper around this class. (ticket#175)
+ Inputs can now be stub database directories or files, in which case the
databases in the stub are used as inputs.
+ Add support for compacting to a stub database, which can be one of the
inputs (for atomic update).
+ If spellings and/or synonyms were only present in some source databases,
they weren't copied to the output database, but now they are.
portability:
* configure: Add support for --enable-sse=sse and --enable-sse=sse2 to allow
control of which SSE instructions to use.
* configure: Enable use of SSE maths on x86 by default with Sun's compiler.
* configure: Beef up the test for whether -lm is required and add a special
case to force it to be for Sun's C++ compiler - there's some interaction with
libtool and/or shared objects which means that the previous configure test
didn't think -lm is needed here when it is.
* Fix to build on OpenBSD 4.5 with GCC 3.3.5.
* Need to avoid excess precision on m68k when targeting models 68010, 68020,
68030 as well as 68000.
* Fix compilation with Sun's C++ compiler.
* Fix testsuite to build on Solaris < 10.
1.2.3:
API:
* Database::get_spelling_suggestion() will now suggest a correction even if the
passed word is in the dictionary, provided the correction has at least the
same frequency. Partly addresses #225.
* QueryParser:
+ Fix handling of groups of terms which are all stopwords - in situations
where this causes a problem we now disable stopword checks for such groups.
(ticket#245)
+ Fix to be smarter about handling a boolean filter term containing ".." in
the presence of valuerangeprocessors.
portability:
* configure: Don't pass -mtune=generic unless GCC >= 4.2 is in use
(ticket#492).
* Fix handling of some obscure cases of resolving relative paths on Microsoft
Windows. (ticket#243).
* Optimise closing of all unwanted file descriptors after forking by using
closefrom() if available, and otherwise providing our own implementation
(optimised to some extent for many platforms).
* Fix test harness to build under Microsoft Windows (ticket#495).
1.2.2:
portability:
* Revert 1.2.1 change to visibility of Xapian::Weight's copy constructor as
it making it private broke compilation with GCC 4.1 (which seems to be a
bug in this compiler version).
* tests/harness/testsuite.cc: Need <cstdio> for sprintf(). Fixes compilation
error which was masked if valgrind was installed. (ticket#489)
pkgsrc changes:
* Remove options (the "quartz" backend was unrelated to Darwin and
no longer exists).
* Unconditionally buildlink libuuid. If that's overzealous, improve
its builtin detection.
Xapian-core 1.0.18 (2009-02-14):
API:
* Document: Add new add_boolean_term() method, which is an alias for add_term()
with wdfinc=0.
* QueryParser:
+ Add support for quoting boolean terms so they can contain arbitrary
characters (partly addresses ticket#128).
+ Add ENCLOSING_MARK and COMBINING_SPACING_MARK categories, plus several
zero-width space characters, as phrase generators. This mirrors a better
fix in 1.1.4, but without losing compatibility with existing databases.
+ Fix handling of an explicit AND before a hated term (foo AND -bar).
(ticket#447)
* TermIterator: Only include trailing '+' or '#' on a term if it isn't followed
by a word character (makes more sense and matches QueryParser's behaviour).
(ticket#446)
* Database: Fix many methods to behave better on a database with no
subdatabases, such as is constructed by Database(). Fixes ticket#415.
testsuite:
* Add test coverage for xapian-compact, and improve coverage for
WritableDatabase::replace_document().
* apitest: Rename matchfunctor<n> to matchdecider<n> to match current
terminology.
flint backend:
* When updating documents, don't update posting entries which haven't changed.
Largely fixes ticket #250.
* If the number of entries in the position table happened to be 4294967296 or
an exact multiple, Xapian would ignore positional data for that table when
running queries.
* Iterating all the terms in the database with a prefix is now slightly more
efficient.
* Fix locking code to work if stdin and/or stdout have been closed.
* If a document is replaced with itself unmodified, we no longer increase the
automatic flush counter.
* When iterating a posting list modified since the last flush(), the reported
wdf is now correct (previously it was too high by its old value).
* Replacing a document deleted since the last flush failed to update the
collection frequency and wdf, and caused an assertion failure when assertions
were enabled.
* WritableDatabase::replace_document() didn't always remove old positional
data (the only effect is that the position table was bloated by unwanted
entries).
* xapian-inspect:
+ New "until" command which shows entries until a specified key is reached.
+ New "open" command which allows easy switching between tables.
* xapian-compact: Fix typos in --help output.
quartz backend:
* Replacing a document deleted since the last flush failed to update the
collection frequency and wdf, and caused an assertion failure when assertions
were enabled.
* WritableDatabase::replace_document() didn't always remove old positional
data (the only effect is that the position table was bloated by unwanted
entries).
remote backend:
* Throw UnimplementedError if a MatchDecider is used with the remote backend.
Previously Xapian returned incorrect results in this case.
build system:
* configure: With --enable-maintainer-mode, enable -Werror for GCC >= 4.1
rather than >= 4.0 as Apple's GCC 4.0 gives bogus uninitialised variable
warnings.
documentation:
* The API documentation now includes Xapian::Error and subclasses, and doesn't
mention Xapian::Query::Internal.
* Make clear in the Xapian::Document API documentation that this class is a
lazy handle and discuss the issues this can cause.
* INSTALL: Improve text about zlib dependency.
* HACKING: Add details of our licensing policy for accepting patches.
examples:
* quest: If no database is specified, still parse the query and report
Query::get_description() to provide an easy way to check how a query parses.
portability:
* Fix GCC 4.2 warning.
xapian-core 1.0.17 (2009-11-18):
API:
* QueryParser:
+ Fix handling of a group of two or more terms which are all stopwords which
notably caused issues when default_op was OP_AND, but could probably
manifest in other cases too. Fixes ticket#406.
+ Fix interaction of FLAG_PARTIAL and FLAG_SYNONYM. (ticket#407)
* Database: A database created via the default constructor no longer causes a
segfault when the methods get_metadata() or metadata_keys_begin() are called.
flint backend:
* Don't try to close the fd one more than the maximum allowable when locking
the database. Harmless, except it causes a warning when running under
valgrind. (ticket#408)
remote backend:
* Xapian::Sorter isn't supported with the remote backend so throw
UnimplementedError rather than giving incorrect results. (ticket#384)
* Fix potential reading off the end of the MSet which is returned internally
by the remote server.
documentation:
* Various documentation comment improvements for the Database class.
examples:
* examples/quest.cc: Tighten up the type of the error we catch to detect an
unknown stemming language.
portability:
* xapian-config: Need to quote ^ for Solaris /bin/sh.
* configure: Actually use any flags we determine are needed to switch the
compiler to proper ANSI C++ mode, when building xapian-core - this stopped
working in 1.0.12, breaking support for HP's aCC, Compaq's cxx, Sun's CC, and
SGI's CC.
flint backend:
* Fix a typo which stopped this fix in 1.0.12 from working (ticket #398):
If we fail to get the lock after we spawn the child lock process (the common
case is because the database is already open for writing) then we now clean
up the child process properly.
documentation:
* Improve API documentation of QueryParser::set_default_op() and
QueryParser::get_default_op().
portability:
* Fix build failure on Mac OS X 10.6.
flint backend:
* Backport the lazy update changes from 1.1.2:
WritableDatabase::replace_document() now updates the database lazily in
simple cases - for example, if you just change a document's values and
replace it with the same docid, then the terms and document data aren't
needlessly rewritten. Caveats: currently we only check if you've looked at
the values/terms/data, not if they've actually been modified, and only keep
track of the last document read.
* Fix PostingIterator::skip_to() on an unflushed WritableDatabase to skip
documents which were added and deleted since the last flush. (ticket#392)
documentation:
* Overhaul the doxygen options we use and tweak various documentation comments
to improve the generated API documentation.
* Explicitly document that an empty prefix argument to
QueryParser::add_prefix() means "no prefix".
* Update the documentation comments for Enable::set_sort_by_value(),
set_sort_by_value_then_relevance(), and set_sort_by_relevance_then_value() to
mention sortable_serialise() as a good way to store numeric values for
sorting.
API:
* When using more than one ValueRangeProcessor, QueryParser didn't reset the
begin and end strings to ignore any changes made by a ValueRangeProcessor
which returned false, so further ValueRangeProcessors would see any changes
it had made. This is now fixed, and test coverage improved.
flint backend:
* Use F_FULLFSYNC where available (Mac OS X currently) to ensure that changes
have been committed to disk. (ticket#288)
remote backend:
* Fix handling of percentage weights in various cases when we're searching
multiple remote databases or a mix of local and remote databases.
API:
* Xapian::Document no longer ever stores empty values explicitly. This
wasn't intentional behaviour, and how this case was handled wasn't
documented. The amended behaviour is consistent with how user metadata
is handled. This change isn't observable using Document::get_value(),
but can be noticed when iterating with Document::values_begin(), using
Document::values_count(), or trying to delete the value with
Document::remove_value().
matcher:
* If a query contains a MatchAll subquery, check for it before checking the
other terms so that the loop which checks how many terms match can exit
early if they all match.
* When an OR or ANY_MAYBE decayed to an AND, we were carefully swapping the
children for maximum efficiency, but the condition was reversed so we were
in fact making things worse. This was noticed because it was resulting in
the same query running faster when more results were asked for!
* Only build the termname to termfreq and weight map for the first subdatabase
instead of rebuilding it for each one. Also don't copy this map to return
it. This should speed up searches a little, especially those over multiple
databases.
* If a submatcher fails but ErrorHandler tells us to continue without it, we
just use a NULL pointer to stand in rather than allocating a special dummy
place-holder object.
* Remove AndPostList, in favour of MultiAndPostList. AndPostList was only used
as a decay product (by AndMaybePostList and OrPostList), and doesn't appear
to be any faster. Removing it reduces CPU cache pressure, and is less code
to maintain.
* Call check() instead of skip_to() on the optional branch of AND_MAYBE.
flint backend:
* Fix a bug in TermIterator::skip_to() over metadata keys.
remote backend:
* Fix xapian-tcpsrv --interface option to work on MacOS X (ticket#373).
* Fix typo which caused us to return the docid instead of the maximum weight
a document from a remote match could return! This could have led to wrong
results when searching multiple databases with the remote backend, but
probably usually didn't matter as with BM25 the weights are generally small
(often all < 1) while docids are inevitably >= 1.
inmemory backend:
* The inmemory backend doesn't support iterating over metadata keys. Trying
to do so used to give an empty iteration, but has now been fixed to throw
UnimplementedError (and this limitation has now been documented).
documentation:
* INSTALL: We no longer regularly test build with GCC 2.95.4 and we're raising
the minimum GCC version required to 3.1 for Xapian 1.1.x.
* Document what passing maxitems=0 to Enquire::get_mset() does.
* docs/queryparser.html: Add examples of using a prefix on a phrase or
subexpression.
* Correct doxygen comments for user metadata functions:
Database::get_metadata() throw UnimplementedError but
WritableDatabase::set_metadata() can.
* Document that Database::metadata_keys_begin() returns an end iterator if the
backend doesn't support metadata.
* HACKING: Update the list of Debian/Ubuntu packages needed for a development
environment.
* WritableDatabase::remove_spelling() now works properly.
* The QueryParser now treats NON_SPACING_MARK Unicode characters as phrase
generators, which improves handling of Arabic. This is a stop-gap solution
for 1.0.x which will work with existing databases without requiring
reindexing - in 1.1.0, NON_SPACING_MARK will be regarded as part of a word.
(ticket#355)
* Fix undefined behaviour in distribution of OP_NEAR and OP_PHRASE over a
non-leaf subquery (indentified by valgrind on testcase nearsubqueries1).
(ticket#349)
* Enhance distribution of OP_NEAR/OP_PHRASE over non-leaf subqueries to work
when there are multiple non-leaf subqueries (ticket#201).
* Enquire::get_mset() no longer needlessly checks if the documents exist.
* PostingIterator::get_description() output improved visually in some cases.
* Enquire::get_mset():
+ Now throws UnimplementedError if there's a percentage cutoff and sorting is
primarily by value - this has never been correctly supported and it's
better to warn people than give incorrect results.
+ No longer needlessly copies the results internally.
+ When searching multiple databases, now recalculates the maximum attainable
weight after each database which may allow it to terminate earlier.
(ticket#336).
+ Fix inconsistent percentage scores when sorting primarily by value, except
when a MatchDecider is also being used; document this remaining problem
case. (ticket#216)
* Enquire::set_sort_by_value() (and similar methods): Rename the wrongly named
"ascending" parameter to "reverse", and note that its value should always be
explicitly given since defaulting to "reverse=true" is confusing and the
default will be deprecated in 1.1.0. (ticket#311)
* Database::allterms_begin(): Fix memory leak when iterating all terms from
more than one database.
* Query::get_terms_begin(): Don't return "" from the TermIterator (happened
when the query contained or was Query::MatchAll).
* Add QueryParser::FLAG_DEFAULT to make it easier to add flags to those set by
default.
This changes the buildlink3.mk files to use an include guard for the
recursive include. The use of BUILDLINK_DEPTH, BUILDLINK_DEPENDS,
BUILDLINK_PACKAGES and BUILDLINK_ORDER is handled by a single new
variable BUILDLINK_TREE. Each buildlink3.mk file adds a pair of
enter/exit marker, which can be used to reconstruct the tree and
to determine first level includes. Avoiding := for large variables
(BUILDLINK_ORDER) speeds up parse time as += has linear complexity.
The include guard reduces system time by avoiding reading files over and
over again. For complex packages this reduces both %user and %sys time to
half of the former time.
rationalisation of backends (and also allows wiring the database to the older
database format if desired).
The "suggested options" select support for both formats, which is also the
status quo.
Xapian-core 1.0.10 (2008-12-23):
API:
* Composing an OP_NEAR query with two non-term subqueries now throws
UnimplementedError instead of AssertionError (in a --enable-assertions build)
or leading to unexpected results (otherwise). This partly addresses bug#201.
* Using a MultiValueSorter with no values set no longer causes a hang or
segmentation fault (but it is still rather pointless!)
matcher:
* If we're using values for sorting and for another purpose, cache the
Document::Internal object created to get the value for sorting, like we do
between other uses.
flint backend:
* If the disk became full while flushing database changes to disk, the
WritableDatabase object would throw a DatabaseError exception but be left in
an inconsistent state such that further use could lead to the database on
disk ending up in a "corrupt" state (theoretically fixable, but no tool
to fix such a database exists). Now we try to ensure that the object is
left in a consistent state, but if doing so throws a further exception, we
put the WritableDatabase object in a "closed" state such that further
attempts to use it throw an exception.
* Create the lockfile "flintlock" with permissions 0666 so that the umask is
honoured just like we do for the other files (previously we used 0600).
Previously it wasn't possible to lock a database for update if it was
owned by another user, even if you otherwise had sufficient permissions via
"group" or "other".
* Fix garbled exception message when a base file can't be reread.
quartz backend:
* Fix garbled exception message when a base file can't be reread.
remote backend:
* xapian-tcpsrv and xapian-progsrv now accept -w as a short form of --writable,
as was always intended.
build system:
* This release now uses newer versions of the autotools (autoconf 2.62 ->
2.63; automake 1.10.1 -> 1.10.2).
documentation:
* INSTALL: Add new paragraphs about HP's aCC and IRIX (adapted from footnotes
in PLATFORMS).
* PLATFORMS: HP testdrive has been shut down, so all mark all those machines as
"no longer available". Update atreus' build report to 1.0.10.
* docs/queryparser.html: Add link to valueranges.html.
examples:
* delve: Add missing "and" to --help output. Report termfreq and collection
freq for each term we're asked about.
portability:
* Fix to build with GCC 4.4 snapshot.
Xapian-core 1.0.9 (2008-10-31):
API:
* Database::get_spelling_suggestion() is now faster (15% speed up for parsing
queries with FLAG_SPELLING_CORRECTION set in a test on real world data).
* Fix OP_ELITE_SET segmentation fault due to excess floating point precision
on x86 Linux (and possibly other platforms).
* Database::allterms_begin() over multiple databases now gives a TermIterator
with operations O(log(n)) rather than potentially O(n) in the number of
databases.
* Add new Database methods metadata_keys_begin() and metadata_keys_end() to
allow the complete list of metadata in a database to be retrieved (this
API addition is needed so that copydatabase can copy database metadata).
testsuite:
* Remove the cached test databases before running the testsuite.
* apitest: Fix cursordelbug1 to work on Microsoft Windows (bug#301).
* apitest,queryparsertest: Skip tests which fail because the timer granularity
is too coarse to measure how long the test took. In practice, this is only
an issue on Microsoft Windows (bug#300 and bug#308).
matcher:
* Adjust percent cutoff calculations in the matcher in a way which corresponds
to the change to percentage calculations made in 1.0.7 to allow for excess
precision.
* Query::MatchAll no longer gives match results ranked by increasing document
length.
flint backend:
* xapian-compact: Fix crash while compacting spelling table for a single
database when built with MSVC, and probably other platforms, though Linux
got lucky and happened to work (bug#305).
build system:
* configure: Disable -Wconversion for now - it's not useful for older GCC and
is buggy in GCC 4.3.
* configure: Set -Wstrict-overflow to 1 instead of 5, to avoid unreasonable
warnings under GCC 4.3.
documentation:
* Minor improvements to API documentation, including documenting the
XAPIAN_FLUSH_THRESHOLD environmental variable in WriteableDatabase::flush()
(bug#306).
* valueranges.html: Fix typos in example code, and drop superfluous empty
destructor from ValueRangeProcessor subclass.
* HACKING: Several improvements.
examples:
* copydatabase: Also copy user metadata.
Xapian-core 1.0.8 (2008-09-04):
API:
* Fix output of RSet::get_description
testsuite:
* Report subtotals per backend, rather than per testgroup per backend to make
the output easier to read.
flint backend:
* Fix WritableDatabase::add_document() and replace_document() not to be O(n*n)
in the number of values in the new document.
* Fix handling of a table created lazily after the database has had commits,
and which is then cursored while still in sequential mode.
* Fix failure to remove all the Btree entries in some cases when all the
postings for a term are removed. (bug#287)
* xapian-inspect: Show the help message on start-up. Correct the documented
alias for next from ' ' to ''. Avoid reading outside of input string when it
is empty. (bug#286)
quartz backend:
* Backport fix from flint for WritableDatabase::add_document() and
replace_document() not to be O(n*n) in the number of values in the new
document.
build system:
* configure: Report bug report URL in --help output.
* xapian-config: Report bug report URL in --help output.
* configure: Fix deprecation error for --enable-debug=full to say to instead
use '--enable-assertions --enable-log' not '--enable-debug --enable-log'.
documentation:
* valueranges.html: Expand on some sections.
examples:
* quest: Fix to catch QueryParserError instead of const char * which
QueryParser threw in Xapian < 1.0.0.
* copydatabase: Use C++ forms of C headers. Only treat '\' as a directory
separator on platforms where it is. Update counter every 13 counting up to
the end so that the digits all "rotate" and the counter ends up on the exact
total.
portability:
* Eliminate literal top-bit-set characters in testsuite source code.
released under the GPL. It's written in C++, with bindings to allow
use from Perl, Python, PHP, Java, Tcl, C# and Ruby (so far!)
Xapian is a highly adaptable toolkit which allows developers to
easily add advanced indexing and search facilities to their own
applications. It supports the Probabilistic Information Retrieval
model and also supports a rich set of boolean query operators.
If you're after a packaged search engine for your website, you
should take a look at Omega: an application we supply built upon
Xapian. Unlike most other website search solutions, Xapian's
versatility allows you to extend Omega to meet your needs as they
grow.
schmonz
agc
jaapb
asau
wiz
dholland
sbd
joerg
abs
dsainty