forked from pool/xapian-core
- update to 1.4.19:
* New QueryParser::FLAG_NO_POSITIONS flag. With this flag enabled, any query
operations which would use positional information are replaced by the nearest
equivalent which doesn't (so phrase searches, NEAR and ADJ will result in
OP_AND). This is intended to replace the automatic conversion of OP_PHRASE,
etc to OP_AND when a database has no positional information, which will no
longer happen in the release series after 1.4.
* Give a compile error for code which adds a Database to WritableDatabase.
Prior to 1.4.19, this compiled and effectively created a "black-hole" shard
which quietly discarded any changes made to it.
In 1.4.19 it's still possible to perform this operation by assigning the
WritableDatabase to a Database first, which is harder to fix. This case
throws an exception on git master where it's easier to address.
* Fix TermIterator::skip_to() with sharded databases which sometimes was
failing to advance all the way to the requested term. Uncovered while
addressing warning from GCC's -Wduplicated-cond, reported by dcb in #816.
* Clamp edit distance to one less than the length of the word we've been asked
to correct, which makes the algorithm we use more efficient. We already
require suggestion to have at least one character in common, so the only
change to suggestions is we'll no longer suggest corrections which are
twice as long or longer even if the edit distance would allow it, which
seems like an improvement in itself.
* Minor optimisation expanding wildcards.
* PostingIterator::get_description(): For an all-docs iterator on a glass
database, get_description() would call get_docid() which isn't valid to
do once the iterator has reached the end.
* Expand allterms test coverage.
* Fetch wdf upper bound from postlist which avoids an extra postlist table
cursor seek per weighted query term, and also means we now use a per-shard
wdf upper bound for local shards which will in typically give a tighter
OBS-URL: https://build.opensuse.org/package/show/server:search/xapian-core?expand=0&rev=98
This commit is contained in:
Git OBS Bridge
parent
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@ -1,3 +1,51 @@
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||||
-------------------------------------------------------------------
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Wed Jan 19 21:10:03 UTC 2022 - Dirk Müller <dmueller@suse.com>
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- update to 1.4.19:
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* New QueryParser::FLAG_NO_POSITIONS flag. With this flag enabled, any query
|
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operations which would use positional information are replaced by the nearest
|
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equivalent which doesn't (so phrase searches, NEAR and ADJ will result in
|
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OP_AND). This is intended to replace the automatic conversion of OP_PHRASE,
|
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etc to OP_AND when a database has no positional information, which will no
|
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longer happen in the release series after 1.4.
|
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* Give a compile error for code which adds a Database to WritableDatabase.
|
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Prior to 1.4.19, this compiled and effectively created a "black-hole" shard
|
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which quietly discarded any changes made to it.
|
||||
In 1.4.19 it's still possible to perform this operation by assigning the
|
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WritableDatabase to a Database first, which is harder to fix. This case
|
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throws an exception on git master where it's easier to address.
|
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* Fix TermIterator::skip_to() with sharded databases which sometimes was
|
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failing to advance all the way to the requested term. Uncovered while
|
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addressing warning from GCC's -Wduplicated-cond, reported by dcb in #816.
|
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* Clamp edit distance to one less than the length of the word we've been asked
|
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to correct, which makes the algorithm we use more efficient. We already
|
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require suggestion to have at least one character in common, so the only
|
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change to suggestions is we'll no longer suggest corrections which are
|
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twice as long or longer even if the edit distance would allow it, which
|
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seems like an improvement in itself.
|
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* Minor optimisation expanding wildcards.
|
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* PostingIterator::get_description(): For an all-docs iterator on a glass
|
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database, get_description() would call get_docid() which isn't valid to
|
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do once the iterator has reached the end.
|
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* Expand allterms test coverage.
|
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* Fetch wdf upper bound from postlist which avoids an extra postlist table
|
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cursor seek per weighted query term, and also means we now use a per-shard
|
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wdf upper bound for local shards which will in typically give a tighter
|
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weight upper bound which will tend to make various other matcher
|
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optimisations more effective. Eric Wong reported this speeds up a
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particularly slow case from ~2 minutes to ~3 seconds.
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* Avoid triggering a pointless maximum weight recalculation if an unweighted
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child of a MultiAndPostList prunes.
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* Only check if the database has positional information when the query
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uses positional information. This should help improve notmuch delete
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performance. Thanks to andreas on #notmuch for analysis of the problem.
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* Optimise Glass::Inverter::has_positions(). Use const auto& instead of just
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auto for the loop variables. Reported to be faster by andreas on #notmuch.
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* Cache result of Glass::Inverter::has_positions() since calculating it is
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potentially very expensive, while maintaining a cached answer is very cheap.
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* Add missing closing parenthesis to reported remote prog context, which has
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been missing since this code was first added over 20 years ago!
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-------------------------------------------------------------------
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Tue Jan 19 22:04:41 UTC 2021 - Dirk Müller <dmueller@suse.com>
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@ -1,7 +1,7 @@
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#
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# spec file for package xapian-core
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#
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# Copyright (c) 2021 SUSE LLC
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# Copyright (c) 2022 SUSE LLC
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#
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# All modifications and additions to the file contributed by third parties
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# remain the property of their copyright owners, unless otherwise agreed
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@ -17,7 +17,7 @@
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Name: xapian-core
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Version: 1.4.18
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Version: 1.4.19
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Release: 0
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Summary: The Xapian Probabilistic Information Retrieval Library
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License: GPL-2.0-only
|
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