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346 Commits

Author SHA1 Message Date
Louis Dureuil
701d44bd91
Store the scores for each bucket 
Remove optimization where ranking rules are not executed on buckets of a single document
when the score needs to be computed
 2023-06-22 12:39:14 +02:00
Louis Dureuil
c621a250a7
Score for graph based ranking rules 
Count phrases in matchingWords and maxMatchingWords
 2023-06-22 12:39:14 +02:00
Louis Dureuil
8939e85f60
Add rank_to_score for graph based ranking rules 2023-06-22 12:39:14 +02:00
Louis Dureuil
fa41d2489e
Score for sort 2023-06-22 12:39:14 +02:00
Louis Dureuil
59c5b992c2
Score for geosort 2023-06-22 12:39:14 +02:00
Louis Dureuil
2ea8194c18
Score for exact_attributes 2023-06-22 12:39:14 +02:00
Louis Dureuil
421df64602
RankingRuleOutput now contains a Score 2023-06-22 12:39:14 +02:00
Louis Dureuil
f050634b1e
add virtual conditions to fid and position to always have the max cost 2023-06-20 10:07:18 +02:00
Louis Dureuil
becf1f066a
Change how the cost of removing words is computed 2023-06-20 09:45:43 +02:00
Louis Dureuil
701d299369
Remove out-of-date comment 2023-06-20 09:45:42 +02:00
Louis Dureuil
a20e4d447c
Position now takes into account the distance to the position of the word in the query 
it used to be based on the distance to the position 0
 2023-06-20 09:45:42 +02:00
Louis Dureuil
af57c3c577
Proximity costs 0 for documents that are perfectly matching 2023-06-20 09:45:42 +02:00
Louis Dureuil
0c40ef6911
Fix sort id 2023-06-20 09:45:42 +02:00
Loïc Lecrenier
2da86b31a6 Remove comments and add documentation 2023-06-14 12:39:42 +02:00
Louis Dureuil
a2a3b8c973
Fix offset difference between query and indexing for hard separators 2023-06-08 12:07:12 +02:00
Louis Dureuil
1dfc4038ab
Add test that fails before PR and passes now 2023-05-29 11:58:26 +02:00
Louis Dureuil
73198179f1
Consistently use wrapping add to avoid overflow in debug when query starts with a separator 2023-05-29 11:54:12 +02:00
meili-bors[bot]
2e49d6aec1
Merge #3768 
3768: Fix bugs in graph-based ranking rules + make `words` a graph-based ranking rule r=dureuill a=loiclec

This PR contains three changes:

## 1. Don't call the `words` ranking rule if the term matching strategy is `All`

This is because the purpose of `words` is only to remove nodes from the query graph. It would never do any useful work when the matching strategy was `All`. Remember that the universe was already computed before by computing all the docids corresponding to the "maximally reduced" query graph, which, in the case of `All`, is equal to the original graph.

## 2. The `words` ranking rule is replaced by a graph-based ranking rule. 

This is for three reasons:

1. **performance**: graph-based ranking rules benefit from a lot of optimisations by default, which ensures that they are never too slow. The previous implementation of `words` could call `compute_query_graph_docids` many times if some words had to be removed from the query, which would be quite expensive. I was especially worried about its performance in cases where it is placed right after the `sort` ranking rule. Furthermore, `compute_query_graph_docids` would clone a lot of bitmaps many times unnecessarily.

2. **consistency**: every other ranking rule (except `sort`) is graph-based. It makes sense to implement `words` like that as well. It will automatically benefit from all the features, optimisations, and bug fixes that all the other ranking rules get.

3. **surfacing bugs**: as the first ranking rule to be called (most of the time), I'd like `words` to behave the same as the other ranking rules so that we can quickly detect bugs in our graph algorithms. This actually already happened, which is why this PR also contains a bug fix.

## 3. Fix the `update_all_costs_before_nodes` function

It is a bit difficult to explain what was wrong, but I'll try. The bug happened when we had graphs like:
<img width="730" alt="Screenshot 2023-05-16 at 10 58 57" src="https://github.com/meilisearch/meilisearch/assets/6040237/40db1a68-d852-4e89-99d5-0d65757242a7">
and we gave the node `is` as argument.

Then, we'd walk backwards from the node breadth-first. We'd update the costs of:
1. `sun`
2. `thesun`
3. `start`
4. `the`

which is an incorrect order. The correct order is:

1. `sun`
2. `thesun`
3. `the`
4. `start`

That is, we can only update the cost of a node when all of its successors have either already been visited or were not affected by the update to the node passed as argument. To solve this bug, I factored out the graph-traversal logic into a `traverse_breadth_first_backward` function.


Co-authored-by: Loïc Lecrenier <loic.lecrenier@me.com>
Co-authored-by: Louis Dureuil <louis@meilisearch.com>
 2023-05-23 13:28:08 +00:00
Louis Dureuil
51043f78f0
Remove trailing whitespace 2023-05-23 15:27:25 +02:00
Louis Dureuil
a490a11325
Add explanatory comment on the way we're recomputing costs 2023-05-23 15:24:24 +02:00
Loïc Lecrenier
ec8f685d84 Fix bug in cheapest path algorithm 2023-05-16 17:01:30 +02:00
Loïc Lecrenier
5758268866 Don't compute split_words for phrases 2023-05-16 17:01:18 +02:00
Loïc Lecrenier
3e19702de6 Update snapshot tests 2023-05-16 12:22:46 +02:00
Loïc Lecrenier
f6524a6858 Adjust costs of edges in position ranking rule 
To ensure good performance
 2023-05-16 11:28:56 +02:00
meili-bors[bot]
65ad8cce36
Merge #3741 
3741: Add ngram support to the highlighter r=ManyTheFish a=loiclec

This PR fixes a bug introduced by the search refactor, where ngrams were not highlighted. 

The solution was to add the ngrams to the vector of `LocatedQueryTerm` that is given to the `MatchingWords` structure.

Co-authored-by: Loïc Lecrenier <loic.lecrenier@me.com>
 2023-05-16 09:03:31 +00:00
Loïc Lecrenier
a37da36766 Implement words as a graph-based ranking rule and fix some bugs 2023-05-16 10:42:11 +02:00
Loïc Lecrenier
85d96d35a8 Highlight ngram matches as well 2023-05-16 10:39:36 +02:00
Loïc Lecrenier
4d352a21ac Compute split words derivations of terms that don't accept typos 2023-05-10 13:31:19 +02:00
Loïc Lecrenier
3625389057 Highlight ngram matches as well 2023-05-08 15:35:41 +02:00
meili-bors[bot]
eace6df91b
Merge #3726 
3726: Fix prefix highlighting r=loiclec a=ManyTheFish

The prefix queries were not properly highlighted, this PR now highlights only the start of a word when it matched with a prefix

Co-authored-by: ManyTheFish <many@meilisearch.com>
Co-authored-by: Loïc Lecrenier <loic.lecrenier@me.com>
 2023-05-08 07:46:46 +00:00
Loïc Lecrenier
83ab8cf4e5 Remove dbg!(..) expression in highlighter tests 2023-05-08 09:45:23 +02:00
ManyTheFish
cd2573fcc3 Fix prefix highlighting 2023-05-04 16:53:50 +02:00
Jakub Jirutka
13f1277637 Allow to disable specialized tokenizations (again) 
In PR #2773, I added the `chinese`, `hebrew`, `japanese` and `thai`
feature flags to allow melisearch to be built without huge specialed
tokenizations that took up 90% of the melisearch binary size.
Unfortunately, due to some recent changes, this doesn't work anymore.
The problem lies in excessive use of the `default` feature flag, which
infects the dependency graph.

Instead of adding `default-features = false` here and there, it's easier
and more future-proof to not declare `default` in `milli` and
`meilisearch-types`. I've renamed it to `all-tokenizers`, which also
makes it a bit clearer what it's about.
 2023-05-04 15:45:40 +02:00
Louis Dureuil
f8f190cd40
Update exactness tests following charabia camelCase tokenization 2023-05-03 14:45:09 +02:00
Louis Dureuil
1aaf24ccbf
Cargo fmt 2023-05-03 12:21:58 +02:00
Louis Dureuil
342c4ff85d
geosort: Remove rtree unwrap 2023-05-03 09:52:16 +02:00
Tamo
c85392ce40
make the descendent geosort fast 2023-05-03 09:13:12 +02:00
Tamo
8875d24a48
deserialize the rtree only when its needed, and keep it in memory once it has been deserialized 2023-05-03 09:13:12 +02:00
Tamo
c470b67fa2
revamp the test to use execute_iterative_and_rtree_returns_the_same 2023-05-03 09:13:12 +02:00
Louis Dureuil
b60840ebff
Remove self.iterating from words 2023-05-02 18:54:23 +02:00
Louis Dureuil
fdc1763838
Use MultiOps for resolve_query_graph 2023-05-02 18:54:09 +02:00
Louis Dureuil
75819bc940
Remove too many arguments on resolve_maximally_reduced_query_graph 2023-05-02 18:53:40 +02:00
Louis Dureuil
7b8cc25625
rename located_query_terms_from_string -> located_query_terms_from_tokens 2023-05-02 18:53:01 +02:00
Loïc Lecrenier
aa63091752 Fix bug in exact_attribute 2023-05-02 10:48:32 +02:00
Loïc Lecrenier
1b514517f5 Fix bug in computation of query term at a position 2023-05-02 10:48:32 +02:00
Loïc Lecrenier
11f814821d Minor cleanup 2023-05-02 10:48:32 +02:00
Loïc Lecrenier
30fb1153cc Speed up graph based ranking rule when a lot of different costs exist 2023-05-02 09:59:42 +02:00
Loïc Lecrenier
3b2c8b9f25 Improve performance of position rr 2023-05-02 09:59:42 +02:00
Loïc Lecrenier
2a7f9adf78 Build query graph more correctly from paths 
Update snapshots
 2023-05-02 09:59:42 +02:00
Loïc Lecrenier
608ceea440 Fix bug in position rr 2023-05-02 09:59:42 +02:00
Loïc Lecrenier
79001b9c97 Improve performance of the cheapest path finder algorithm 2023-05-02 09:59:42 +02:00
Loïc Lecrenier
59b12fca87 Fix errors, clippy warnings, and add review comments 2023-04-29 11:48:11 +02:00
Loïc Lecrenier
48f5bb1693 Implements the geo-sort ranking rule 2023-04-29 11:02:16 +02:00
Loïc Lecrenier
bc4efca611 Add more tests for the attribute ranking rule 2023-04-29 10:56:48 +02:00
Loïc Lecrenier
899baa0ea5 Update forgotten snapshot from previous commit 2023-04-27 13:43:04 +02:00
Loïc Lecrenier
374095d42c Add tests for stop words and fix a couple of bugs 2023-04-27 13:30:09 +02:00
Louis Dureuil
b41a6cbd7a
Check sort criteria also in placeholder search 2023-04-26 16:28:17 +02:00
Louis Dureuil
c8af572697
Add tests for exact words and exact attributes 2023-04-26 16:13:01 +02:00
Loïc Lecrenier
b448aca49c Add more tests for exactness rr 2023-04-26 11:04:18 +02:00
Loïc Lecrenier
55bad07c16 Fix bug in exact_attribute rr implementation 2023-04-26 10:40:05 +02:00
Loïc Lecrenier
3421125a55 Prevent the exactness ranking rule from removing random words 
Make it strictly follow the term matching strategy
 2023-04-26 09:09:19 +02:00
Loïc Lecrenier
d3a94e8b25 Fix bugs and add tests to exactness ranking rule 2023-04-25 16:49:08 +02:00
Loïc Lecrenier
8f2e971879 Add tests for "exactness" rr, make correct universe computation 2023-04-24 16:57:34 +02:00
Loïc Lecrenier
d1fdbb63da Make all search tests pass, fix distinctAttribute bug 2023-04-24 12:12:08 +02:00
Loïc Lecrenier
84d9c731f8 Fix bug in encoding of word_position_docids and word_fid_docids 2023-04-24 09:59:30 +02:00
Loïc Lecrenier
bd9aba4d77 Add "position" part of the attribute ranking rule 2023-04-13 10:46:09 +02:00
Loïc Lecrenier
8edad8291b Add logger to attribute rr, fix a bug 2023-04-13 10:25:00 +02:00
Kerollmops
d9cebff61c Add a simple test to check that attributes are ranking correctly 2023-04-13 08:27:09 +02:00
Loïc Lecrenier
30f7bd03f6 Fix compiler warning/errors caused by previous merge 2023-04-13 08:27:09 +02:00
Kerollmops
df0d9bb878 Introduce the attribute ranking rule in the list of ranking rules 2023-04-13 08:27:09 +02:00
Kerollmops
5230ddb3ea Resolve the attribute ranking rule conditions 2023-04-13 08:27:09 +02:00
Kerollmops
d6a7c28e4d Implement the attribute ranking rule edge computation 2023-04-13 08:27:09 +02:00
Kerollmops
e55efc419e Introduce a new cache for the words fids 2023-04-13 08:27:09 +02:00
Loïc Lecrenier
644e136aee Merge branch 'search-refactor-typo-attributes' into search-refactor 2023-04-13 08:26:56 +02:00
Louis Dureuil
38b7b31beb Decide to use prefix DB if the word is not an ngram 2023-04-12 16:45:38 +02:00
Louis Dureuil
7a01f20df7 Use word_prefix_docids, make get_word_prefix_docids private 2023-04-12 16:45:38 +02:00
Louis Dureuil
c20c38a7fa Add SearchContext::word_prefix_docids() method 2023-04-12 16:44:43 +02:00
Louis Dureuil
5ab46324c4 Everyone uses the SearchContext::word_docids instead of get_db_word_docids 
make get_db_word_docids private
 2023-04-12 16:44:43 +02:00
Louis Dureuil
325f17488a Add SearchContext::word_docids() method 2023-04-12 16:37:05 +02:00
Louis Dureuil
e7ff987c46 Update call sites 2023-04-12 16:36:38 +02:00
Louis Dureuil
244003e36f Refactor DB cache to return Roaring Bitmaps directly instead of byte slices 2023-04-12 16:35:48 +02:00
Loïc Lecrenier
1f813a6f3b Simplify implementation of the detailed (=visual) logger 2023-04-12 16:32:53 +02:00
Loïc Lecrenier
96183e804a Simplify the logger 2023-04-12 16:32:53 +02:00
Loïc Lecrenier
7ab48ed8c7 Matching words fixes 2023-04-12 16:21:43 +02:00
Loïc Lecrenier
e7bb8c940f Merge branch 'search-refactor-highlighter' into search-refactor-highlighter-merged 2023-04-11 12:22:34 +02:00
Loïc Lecrenier
d0e9d65025 Fix distinct attribute bugs 2023-04-07 11:09:01 +02:00
Loïc Lecrenier
a81165f0d8 Merge remote-tracking branch 'origin/main' into search-refactor 2023-04-07 10:15:55 +02:00
Loïc Lecrenier
d6585eb10b Avoid splitting ngrams into their original component words 2023-04-07 10:13:49 +02:00
Loïc Lecrenier
f7d90ad19f Merge remote-tracking branch 'origin/search-refactor-tests-doc' into search-refactor 2023-04-07 10:13:18 +02:00
Louis Dureuil
31630c85d0 exactness graph rr: Add important TODO/FIXME after review 2023-04-06 17:50:39 +02:00
Louis Dureuil
ab09dc0167 exact_attributes: Add TODOs and additional check after review 2023-04-06 17:50:39 +02:00
Louis Dureuil
618c54915d exact_attribute: dedup nodes after sorting them 2023-04-06 17:50:39 +02:00
Louis Dureuil
90a6c01495 Use correct codec in proximity 2023-04-06 17:50:39 +02:00
Louis Dureuil
e58426109a Fix panics and issues in exactness graph ranking rule 2023-04-06 17:50:39 +02:00
Louis Dureuil
f513cf930a Exact attribute with state 2023-04-06 17:50:39 +02:00
Louis Dureuil
8a13ed7e3f Add exactness ranking rules 2023-04-06 17:50:39 +02:00
Louis Dureuil
1b8e4d0301 Add ExactTerm and helper method 2023-04-06 17:50:39 +02:00
Louis Dureuil
996619b22a Increase position by 8 on hard separator when building query terms 2023-04-06 17:50:39 +02:00
Louis Dureuil
2c9822a337 Rename is_multiple_words to is_ngram and zero_typo to exact 2023-04-06 17:50:39 +02:00
Louis Dureuil
7276deee0a Add new db caches 2023-04-06 17:50:39 +02:00
ManyTheFish
f7e7f438f8 Patch prefix match 2023-04-06 17:22:31 +02:00
ManyTheFish
ba8dcc2d78 Fix clippy 2023-04-06 15:50:47 +02:00
Loïc Lecrenier
7ca91ebb71 Merge branch 'search-refactor-exactness' into search-refactor-tests-doc 2023-04-06 15:16:35 +02:00
ManyTheFish
47f6a3ad3d Take into account that a logger need the search context 2023-04-06 15:02:23 +02:00
ManyTheFish
ae17c62e24 Remove warnings 2023-04-06 14:07:18 +02:00
ManyTheFish
9c5f64769a Integrate the new Highlighter in the search 2023-04-06 13:58:56 +02:00
ManyTheFish
ebe23b04c9 Make the matcher consume the search context 2023-04-06 12:28:28 +02:00
ManyTheFish
13b7c826c1 add new highlighter 2023-04-06 12:15:37 +02:00
Louis Dureuil
d1ddaa223d
Use correct codec in proximity 2023-04-05 18:14:00 +02:00
Louis Dureuil
f7ecea142e
Fix panics and issues in exactness graph ranking rule 2023-04-05 18:13:46 +02:00
Louis Dureuil
337e75b0e4
Exact attribute with state 2023-04-05 18:12:46 +02:00
Loïc Lecrenier
b5691802a3 Add new tests and fix construction of query graph from paths 2023-04-05 16:31:10 +02:00
Loïc Lecrenier
6e50f23896 Add more search tests 2023-04-05 13:33:23 +02:00
Loïc Lecrenier
4c8a0179ba Add more search tests 2023-04-05 11:30:49 +02:00
Loïc Lecrenier
c69cbec64a Add more search tests 2023-04-05 11:20:04 +02:00
Loïc Lecrenier
ce328c329d Move bucket sort function to its own module and fix a bug 2023-04-04 18:03:08 +02:00
Loïc Lecrenier
959e4607bb Add more search tests 2023-04-04 18:02:46 +02:00
Louis Dureuil
4b4ffb8ec9
Add exactness ranking rules 2023-04-04 17:12:07 +02:00
Louis Dureuil
3951fe22ab
Add ExactTerm and helper method 2023-04-04 17:09:32 +02:00
Louis Dureuil
4d5bc9df4c
Increase position by 8 on hard separator when building query terms 2023-04-04 17:07:26 +02:00
Louis Dureuil
ec2f8e8040
Rename is_multiple_words to is_ngram and zero_typo to exact 2023-04-04 17:06:07 +02:00
Louis Dureuil
406b8bd248
Add new db caches 2023-04-04 17:04:46 +02:00
Loïc Lecrenier
62b9c6fbee Add search tests 2023-04-04 16:18:22 +02:00
Loïc Lecrenier
b439d36807 Split query_term module into multiple submodules 2023-04-04 15:38:30 +02:00
Loïc Lecrenier
faceb661e3 Add note that a part of the code needs fixing 2023-04-04 15:02:01 +02:00
Loïc Lecrenier
4129d657e2 Simplify query_term module a bit 2023-04-04 15:01:42 +02:00
Loïc Lecrenier
3f13608002 Fix computation of ngram derivations 2023-04-03 15:27:49 +02:00
Loïc Lecrenier
4708d9b016 Fix compiler warnings/errors 2023-04-03 10:09:27 +02:00
Clément Renault
0d2e7bcc13 Implement the previous way for the exhaustive distinct candidates 2023-04-03 10:08:10 +02:00
Loïc Lecrenier
55fbfb6124 Merge branch 'search-refactor-located-query-terms' into search-refactor 2023-04-03 10:04:36 +02:00
Loïc Lecrenier
58fe260c72 Allow removing all the terms from a query if it contains a phrase 2023-04-03 09:18:02 +02:00
Loïc Lecrenier
24e5f6f7a9 Don't remove phrases with "last" term matching strategy 2023-04-03 09:17:33 +02:00
Louis Dureuil
9b87c36200 Limit the number of derivations for a single word. 2023-03-31 09:19:18 +02:00
Loïc Lecrenier
12b26cd54e Don't remove phrases from the query with term matching strategy Last 2023-03-30 14:54:08 +02:00
Loïc Lecrenier
061b1e6d7c Tiny refactor of query graph remove_nodes method 2023-03-30 14:49:25 +02:00
Loïc Lecrenier
0d6e8b5c31 Fix phrase search bug when the phrase has only one word 2023-03-30 14:48:12 +02:00
Loïc Lecrenier
d48cdc67a0 Fix term matching strategy bugs 2023-03-30 14:01:52 +02:00
Loïc Lecrenier
35c16ad047 Use new term matching strategy logic in words ranking rule 2023-03-30 13:15:43 +02:00
Loïc Lecrenier
2997d1f186 Use new term matching strategy logic in resolve_maximally_reduced_... 2023-03-30 13:12:51 +02:00
Loïc Lecrenier
2a5997fb20 Avoid expensive assert! in bucket sort function 2023-03-30 13:07:17 +02:00
Loïc Lecrenier
ee8a9e0bad Remove outdated sentence in documentation 2023-03-30 12:22:24 +02:00
Loïc Lecrenier
3b0737a092 Fix detailed logger 2023-03-30 12:20:44 +02:00
Loïc Lecrenier
fdd02105ac Graph-based ranking rule + term matching strategy support 2023-03-30 12:19:21 +02:00
Loïc Lecrenier
aa9592455c Refactor the paths_of_cost algorithm 
Support conditions that require certain nodes to be skipped
 2023-03-30 12:11:11 +02:00
Loïc Lecrenier
01e24dd630 Rewrite proximity ranking rule 2023-03-30 11:59:06 +02:00
Loïc Lecrenier
ae6bb1ce17 Update the ConditionDocidsCache after change to RankingRuleGraphTrait 2023-03-30 11:41:20 +02:00
Loïc Lecrenier
5fd28620cd Build ranking rule graph correctly after changes to trait definition 2023-03-30 11:32:55 +02:00
Loïc Lecrenier
728710d63a Update typo ranking rule to use new query term structure 2023-03-30 11:32:19 +02:00
Loïc Lecrenier
fa81381865 Update the trait requirements of ranking-rule graphs 2023-03-30 11:19:45 +02:00
Loïc Lecrenier
b96a682f16 Update resolve_graph module to work with lazy query terms 2023-03-30 11:10:38 +02:00