4296: Fix single element search r=irevoire a=dureuill

# Pull Request

Before this PR, indexing a single vector in a single document would result in the vector not being found by the vector search.

This PR adds a test case for this condition, and resolves it by bumping arroy to a version containing the fix.

# Test case

Output of the test before and after this PR:

```diff
diff --git a/meilisearch/tests/search/hybrid.rs b/meilisearch/tests/search/hybrid.rs
index 2cd4b83e7..79819cab2 100644
--- a/meilisearch/tests/search/hybrid.rs on release-v1.6.0
+++ b/meilisearch/tests/search/hybrid.rs on fix-single-element-search
`@@` -171,5 +171,5 `@@` async fn single_document() {
     .await;

     snapshot!(code, `@"200` OK");
-    snapshot!(response["hits"][0], `@r###"{"title":"Shazam!","desc":"a` Captain Marvel ersatz","id":"1","_vectors":{"default":[1.0,3.0]},"_rankingScore":0.0}"###);
+    snapshot!(response["hits"][0], `@r###"{"title":"Shazam!","desc":"a` Captain Marvel ersatz","id":"1","_vectors":{"default":[1.0,3.0]},"_rankingScore":1.0,"_semanticScore":1.0}"###);
 }
```



Co-authored-by: Louis Dureuil <louis@meilisearch.com>
This commit is contained in:
meili-bors[bot] 2024-01-03 15:01:43 +00:00 committed by GitHub
commit 6203f4acef
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2 changed files with 25 additions and 1 deletions

2
Cargo.lock generated
View File

@ -383,7 +383,7 @@ dependencies = [
[[package]]
name = "arroy"
version = "0.1.0"
source = "git+https://github.com/meilisearch/arroy.git#4f193fd534acd357b65bfe9eec4b3fed8ece2007"
source = "git+https://github.com/meilisearch/arroy.git#d372648212e561a4845077cdb9239423d78655a2"
dependencies = [
"bytemuck",
"byteorder",

View File

@ -56,6 +56,15 @@ static SIMPLE_SEARCH_DOCUMENTS: Lazy<Value> = Lazy::new(|| {
}])
});
static SINGLE_DOCUMENT: Lazy<Value> = Lazy::new(|| {
json!([{
"title": "Shazam!",
"desc": "a Captain Marvel ersatz",
"id": "1",
"_vectors": {"default": [1.0, 3.0]},
}])
});
#[actix_rt::test]
async fn simple_search() {
let server = Server::new().await;
@ -149,3 +158,18 @@ async fn invalid_semantic_ratio() {
}
"###);
}
#[actix_rt::test]
async fn single_document() {
let server = Server::new().await;
let index = index_with_documents(&server, &SINGLE_DOCUMENT).await;
let (response, code) = index
.search_post(
json!({"vector": [1.0, 3.0], "hybrid": {"semanticRatio": 1.0}, "showRankingScore": true}),
)
.await;
snapshot!(code, @"200 OK");
snapshot!(response["hits"][0], @r###"{"title":"Shazam!","desc":"a Captain Marvel ersatz","id":"1","_vectors":{"default":[1.0,3.0]},"_rankingScore":1.0,"_semanticScore":1.0}"###);
}