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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 + weight upper bound which will tend to make various other matcher + optimisations more effective. Eric Wong reported this speeds up a + particularly slow case from ~2 minutes to ~3 seconds. + * Avoid triggering a pointless maximum weight recalculation if an unweighted + child of a MultiAndPostList prunes. + * Only check if the database has positional information when the query + uses positional information. This should help improve notmuch delete + performance. Thanks to andreas on #notmuch for analysis of the problem. + * Optimise Glass::Inverter::has_positions(). Use const auto& instead of just + auto for the loop variables. Reported to be faster by andreas on #notmuch. + * Cache result of Glass::Inverter::has_positions() since calculating it is + potentially very expensive, while maintaining a cached answer is very cheap. + * Add missing closing parenthesis to reported remote prog context, which has + been missing since this code was first added over 20 years ago! + ------------------------------------------------------------------- Tue Jan 19 22:04:41 UTC 2021 - Dirk Müller diff --git a/xapian-core.spec b/xapian-core.spec index 65eb799..c40aa67 100644 --- a/xapian-core.spec +++ b/xapian-core.spec @@ -1,7 +1,7 @@ # # spec file for package xapian-core # -# Copyright (c) 2021 SUSE LLC +# Copyright (c) 2022 SUSE LLC # # All modifications and additions to the file contributed by third parties # remain the property of their copyright owners, unless otherwise agreed @@ -17,7 +17,7 @@ Name: xapian-core -Version: 1.4.18 +Version: 1.4.19 Release: 0 Summary: The Xapian Probabilistic Information Retrieval Library License: GPL-2.0-only