Merge #906

906: Facet distribution correct case r=LegendreM a=MarinPostma ~ Co-authored-by: mpostma <postma.marin@protonmail.com> Co-authored-by: marin <postma.marin@protonmail.com>
2024-11-26 12:05:05 +08:00 · 2020-08-12 09:04:36 +00:00 · 2020-08-12 09:04:36 +00:00 · 1903302a74
commit 1903302a74
parent fb69769991 75c3cb4bb6
8 changed files with 146 additions and 99 deletions
--- a/meilisearch-core/src/bucket_sort.rs
+++ b/meilisearch-core/src/bucket_sort.rs
@ -39,7 +39,7 @@ pub fn bucket_sort<'c, FI>(
    query: &str,
    range: Range<usize>,
    facets_docids: Option<SetBuf<DocumentId>>,
-    facet_count_docids: Option<HashMap<String, HashMap<String, Cow<Set<DocumentId>>>>>,
+    facet_count_docids: Option<HashMap<String, HashMap<String, (&str, Cow<Set<DocumentId>>)>>>,
    filter: Option<FI>,
    criteria: Criteria<'c>,
    searchable_attrs: Option<ReorderedAttrs>,
@ -199,7 +199,7 @@ pub fn bucket_sort_with_distinct<'c, FI, FD>(
    query: &str,
    range: Range<usize>,
    facets_docids: Option<SetBuf<DocumentId>>,
-    facet_count_docids: Option<HashMap<String, HashMap<String, Cow<Set<DocumentId>>>>>,
+    facet_count_docids: Option<HashMap<String, HashMap<String, (&str, Cow<Set<DocumentId>>)>>>,
    filter: Option<FI>,
    distinct: FD,
    distinct_size: usize,
@ -637,17 +637,17 @@ pub fn placeholder_document_sort(

 /// For each entry in facet_docids, calculates the number of documents in the intersection with candidate_docids.
 pub fn facet_count(
-    facet_docids: HashMap<String, HashMap<String, Cow<Set<DocumentId>>>>,
+    facet_docids: HashMap<String, HashMap<String, (&str, Cow<Set<DocumentId>>)>>,
    candidate_docids: &Set<DocumentId>,
 ) -> HashMap<String, HashMap<String, usize>> {
    let mut facets_counts = HashMap::with_capacity(facet_docids.len());
    for (key, doc_map) in facet_docids {
        let mut count_map = HashMap::with_capacity(doc_map.len());
-        for (value, docids) in doc_map {
+        for (_, (value, docids)) in doc_map {
            let mut counter = Counter::new();
            let op = OpBuilder::new(docids.as_ref(), candidate_docids).intersection();
            SetOperation::<DocumentId>::extend_collection(op, &mut counter);
-            count_map.insert(value, counter.0);
+            count_map.insert(value.to_string(), counter.0);
        }
        facets_counts.insert(key, count_map);
    }
--- a/meilisearch-core/src/facets.rs
+++ b/meilisearch-core/src/facets.rs
@ -164,7 +164,7 @@ impl<'a> heed::BytesDecode<'a> for FacetKey {
 }

 pub fn add_to_facet_map(
-    facet_map: &mut HashMap<FacetKey, Vec<DocumentId>>,
+    facet_map: &mut HashMap<FacetKey, (String, Vec<DocumentId>)>,
    field_id: FieldId,
    value: Value,
    document_id: DocumentId,
@ -175,8 +175,8 @@ pub fn add_to_facet_map(
        Value::Null => return Ok(()),
        value => return Err(FacetError::InvalidDocumentAttribute(value.to_string())),
    };
-    let key = FacetKey::new(field_id, value);
-    facet_map.entry(key).or_insert_with(Vec::new).push(document_id);
+    let key = FacetKey::new(field_id, value.clone());
+    facet_map.entry(key).or_insert_with(|| (value, Vec::new())).1.push(document_id);
    Ok(())
 }

@ -185,8 +185,10 @@ pub fn facet_map_from_docids(
    index: &crate::Index,
    document_ids: &[DocumentId],
    attributes_for_facetting: &[FieldId],
-) -> MResult<HashMap<FacetKey, Vec<DocumentId>>> {
-    let mut facet_map = HashMap::new();
+) -> MResult<HashMap<FacetKey, (String, Vec<DocumentId>)>> {
+    // A hashmap that ascociate a facet key to a pair containing the original facet attribute
+    // string with it's case preserved, and a list of document ids for that facet attribute.
+    let mut facet_map: HashMap<FacetKey, (String, Vec<DocumentId>)> = HashMap::new();
    for document_id in document_ids {
        for result in index
            .documents_fields
@ -212,7 +214,7 @@ pub fn facet_map_from_docs(
    schema: &Schema,
    documents: &HashMap<DocumentId, IndexMap<String, Value>>,
    attributes_for_facetting: &[FieldId],
-) -> MResult<HashMap<FacetKey, Vec<DocumentId>>> {
+) -> MResult<HashMap<FacetKey, (String, Vec<DocumentId>)>> {
    let mut facet_map = HashMap::new();
    let attributes_for_facetting = attributes_for_facetting
        .iter()
--- a/meilisearch-core/src/query_builder.rs
+++ b/meilisearch-core/src/query_builder.rs
@ -97,16 +97,14 @@ impl<'c, 'f, 'd, 'i> QueryBuilder<'c, 'f, 'd, 'i> {
                                    .unwrap_or_default();
                                ors.push(docids);
                            }
-                            let sets: Vec<_> = ors.iter().map(Cow::deref).collect();
-                            let or_result = sdset::multi::OpBuilder::from_vec(sets)
-                                .union()
-                                .into_set_buf();
+                            let sets: Vec<_> = ors.iter().map(|(_, i)| i).map(Cow::deref).collect();
+                            let or_result = sdset::multi::OpBuilder::from_vec(sets).union().into_set_buf();
                            ands.push(Cow::Owned(or_result));
                            ors.clear();
                        }
                        Either::Right(key) => {
                            match self.index.facets.facet_document_ids(reader, &key)? {
-                                Some(docids) => ands.push(docids),
+                                Some((_name, docids)) => ands.push(docids),
                                // no candidates for search, early return.
                                None => return Ok(Some(SetBuf::default())),
                            }
@ -206,7 +204,7 @@ impl<'c, 'f, 'd, 'i> QueryBuilder<'c, 'f, 'd, 'i> {
        }
    }

-    fn facet_count_docids<'a>(&self, reader: &'a MainReader) -> MResult<Option<HashMap<String, HashMap<String, Cow<'a, Set<DocumentId>>>>>> {
+    fn facet_count_docids<'a>(&self, reader: &'a MainReader) -> MResult<Option<HashMap<String, HashMap<String, (&'a str, Cow<'a, Set<DocumentId>>)>>>> {
        match self.facets {
            Some(ref field_ids) => {
                let mut facet_count_map = HashMap::new();
--- a/meilisearch-core/src/store/facets.rs
+++ b/meilisearch-core/src/store/facets.rs
@ -1,12 +1,14 @@
 use std::borrow::Cow;
 use std::collections::HashMap;
+use std::mem;

-use heed::{RwTxn, RoTxn, Result as ZResult, RoRange};
+use heed::{RwTxn, RoTxn, RoRange, types::Str, BytesEncode, BytesDecode};
 use sdset::{SetBuf, Set, SetOperation};

 use meilisearch_types::DocumentId;
 use meilisearch_schema::FieldId;

+use crate::MResult;
 use crate::database::MainT;
 use crate::facets::FacetKey;
 use super::cow_set::CowSet;
@ -14,45 +16,82 @@ use super::cow_set::CowSet;
 /// contains facet info
 #[derive(Clone, Copy)]
 pub struct Facets {
-    pub(crate) facets: heed::Database<FacetKey, CowSet<DocumentId>>,
+    pub(crate) facets: heed::Database<FacetKey, FacetData>,
+}
+
+pub struct FacetData;
+
+impl<'a> BytesEncode<'a> for FacetData {
+    type EItem = (&'a str, &'a Set<DocumentId>);
+
+    fn bytes_encode(item: &'a Self::EItem) -> Option<Cow<'a, [u8]>> {
+        // get size of the first item
+        let first_size =  item.0.as_bytes().len();
+        let size = mem::size_of::<u64>()
+            + first_size
+            + item.1.len() * mem::size_of::<DocumentId>();
+        let mut buffer = Vec::with_capacity(size);
+        // encode the length of the first item
+        buffer.extend_from_slice(&first_size.to_be_bytes());
+        buffer.extend_from_slice(Str::bytes_encode(&item.0)?.as_ref());
+        let second_slice = CowSet::bytes_encode(&item.1)?;
+        buffer.extend_from_slice(second_slice.as_ref());
+        Some(Cow::Owned(buffer))
+    }
+}
+
+impl<'a> BytesDecode<'a> for FacetData {
+    type DItem = (&'a str, Cow<'a, Set<DocumentId>>);
+
+    fn bytes_decode(bytes: &'a [u8]) -> Option<Self::DItem> {
+        const LEN: usize = mem::size_of::<u64>();
+        let mut size_buf = [0; LEN];
+        size_buf.copy_from_slice(bytes.get(0..LEN)?);
+        // decode size of the first item from the bytes
+        let first_size = usize::from_be_bytes(size_buf);
+        // decode first and second items
+        let first_item = Str::bytes_decode(bytes.get(LEN..(LEN + first_size))?)?;
+        let second_item = CowSet::bytes_decode(bytes.get((LEN + first_size)..)?)?;
+        Some((first_item, second_item))
+    }
 }

 impl Facets {
    // we use sdset::SetBuf to ensure the docids are sorted.
-    pub fn put_facet_document_ids(&self, writer: &mut RwTxn<MainT>, facet_key: FacetKey, doc_ids: &Set<DocumentId>) -> ZResult<()> {
-        self.facets.put(writer, &facet_key, doc_ids)
+    pub fn put_facet_document_ids(&self, writer: &mut RwTxn<MainT>, facet_key: FacetKey, doc_ids: &Set<DocumentId>, facet_value: &str) -> MResult<()> {
+        Ok(self.facets.put(writer, &facet_key, &(facet_value, doc_ids))?)
    }

-    pub fn field_document_ids<'txn>(&self, reader: &'txn RoTxn<MainT>, field_id: FieldId) -> ZResult<RoRange<'txn, FacetKey, CowSet<DocumentId>>> {
-        self.facets.prefix_iter(reader, &FacetKey::new(field_id, String::new()))
+    pub fn field_document_ids<'txn>(&self, reader: &'txn RoTxn<MainT>, field_id: FieldId) -> MResult<RoRange<'txn, FacetKey, FacetData>> {
+        Ok(self.facets.prefix_iter(reader, &FacetKey::new(field_id, String::new()))?)
    }

-    pub fn facet_document_ids<'txn>(&self, reader: &'txn RoTxn<MainT>, facet_key: &FacetKey) -> ZResult<Option<Cow<'txn, Set<DocumentId>>>> {
-        self.facets.get(reader, &facet_key)
+    pub fn facet_document_ids<'txn>(&self, reader: &'txn RoTxn<MainT>, facet_key: &FacetKey) -> MResult<Option<(&'txn str,Cow<'txn, Set<DocumentId>>)>> {
+        Ok(self.facets.get(reader, &facet_key)?)
    }

    /// updates the facets  store, revmoving the documents from the facets provided in the
    /// `facet_map` argument
-    pub fn remove(&self, writer: &mut RwTxn<MainT>, facet_map: HashMap<FacetKey, Vec<DocumentId>>) -> ZResult<()> {
-        for (key, document_ids) in facet_map {
-            if let Some(old) = self.facets.get(writer, &key)? {
+    pub fn remove(&self, writer: &mut RwTxn<MainT>, facet_map: HashMap<FacetKey, (String, Vec<DocumentId>)>) -> MResult<()> {
+        for (key, (name, document_ids)) in facet_map {
+            if let Some((_, old)) = self.facets.get(writer, &key)? {
                let to_remove = SetBuf::from_dirty(document_ids);
                let new = sdset::duo::OpBuilder::new(old.as_ref(), to_remove.as_set()).difference().into_set_buf();
-                self.facets.put(writer, &key, new.as_set())?;
+                self.facets.put(writer, &key, &(&name, new.as_set()))?;
            }
        }
        Ok(())
    }

-    pub fn add(&self, writer: &mut RwTxn<MainT>, facet_map: HashMap<FacetKey, Vec<DocumentId>>) -> ZResult<()> {
-        for (key, document_ids) in facet_map {
+    pub fn add(&self, writer: &mut RwTxn<MainT>, facet_map: HashMap<FacetKey, (String, Vec<DocumentId>)>) -> MResult<()> {
+        for (key, (facet_name, document_ids)) in facet_map {
            let set = SetBuf::from_dirty(document_ids);
-            self.put_facet_document_ids(writer, key, set.as_set())?;
+            self.put_facet_document_ids(writer, key, set.as_set(), &facet_name)?;
        }
        Ok(())
    }

-    pub fn clear(self, writer: &mut heed::RwTxn<MainT>) -> ZResult<()> {
-        self.facets.clear(writer)
+    pub fn clear(self, writer: &mut heed::RwTxn<MainT>) -> MResult<()> {
+        Ok(self.facets.clear(writer)?)
    }
 }
--- a/meilisearch-http/tests/assets/test_set.json
+++ b/meilisearch-http/tests/assets/test_set.json
@ -5,7 +5,7 @@
    "balance": "$2,668.55",
    "picture": "http://placehold.it/32x32",
    "age": 36,
-    "color": "green",
+    "color": "Green",
    "name": "Lucas Hess",
    "gender": "male",
    "email": "lucashess@chorizon.com",
@ -26,7 +26,7 @@
    "balance": "$1,706.13",
    "picture": "http://placehold.it/32x32",
    "age": 27,
-    "color": "green",
+    "color": "Green",
    "name": "Cherry Orr",
    "gender": "female",
    "email": "cherryorr@chorizon.com",
@ -90,7 +90,7 @@
    "balance": "$2,575.78",
    "picture": "http://placehold.it/32x32",
    "age": 39,
-    "color": "green",
+    "color": "Green",
    "name": "Mariana Pacheco",
    "gender": "female",
    "email": "marianapacheco@chorizon.com",
@ -110,7 +110,7 @@
    "balance": "$3,793.09",
    "picture": "http://placehold.it/32x32",
    "age": 20,
-    "color": "green",
+    "color": "Green",
    "name": "Warren Watson",
    "gender": "male",
    "email": "warrenwatson@chorizon.com",
@ -155,7 +155,7 @@
    "balance": "$1,349.50",
    "picture": "http://placehold.it/32x32",
    "age": 28,
-    "color": "green",
+    "color": "Green",
    "name": "Chrystal Boyd",
    "gender": "female",
    "email": "chrystalboyd@chorizon.com",
@ -235,7 +235,7 @@
    "balance": "$1,351.43",
    "picture": "http://placehold.it/32x32",
    "age": 28,
-    "color": "green",
+    "color": "Green",
    "name": "Evans Wagner",
    "gender": "male",
    "email": "evanswagner@chorizon.com",
@ -431,7 +431,7 @@
    "balance": "$1,986.48",
    "picture": "http://placehold.it/32x32",
    "age": 38,
-    "color": "green",
+    "color": "Green",
    "name": "Florence Long",
    "gender": "female",
    "email": "florencelong@chorizon.com",
@ -530,7 +530,7 @@
    "balance": "$3,973.43",
    "picture": "http://placehold.it/32x32",
    "age": 29,
-    "color": "green",
+    "color": "Green",
    "name": "Sykes Conley",
    "gender": "male",
    "email": "sykesconley@chorizon.com",
@ -813,7 +813,7 @@
    "balance": "$1,992.38",
    "picture": "http://placehold.it/32x32",
    "age": 40,
-    "color": "green",
+    "color": "Green",
    "name": "Christina Short",
    "gender": "female",
    "email": "christinashort@chorizon.com",
@ -944,7 +944,7 @@
    "balance": "$2,893.45",
    "picture": "http://placehold.it/32x32",
    "age": 22,
-    "color": "green",
+    "color": "Green",
    "name": "Joni Spears",
    "gender": "female",
    "email": "jonispears@chorizon.com",
@ -988,7 +988,7 @@
    "balance": "$1,348.04",
    "picture": "http://placehold.it/32x32",
    "age": 34,
-    "color": "green",
+    "color": "Green",
    "name": "Lawson Curtis",
    "gender": "male",
    "email": "lawsoncurtis@chorizon.com",
@ -1006,7 +1006,7 @@
    "balance": "$1,132.41",
    "picture": "http://placehold.it/32x32",
    "age": 38,
-    "color": "green",
+    "color": "Green",
    "name": "Goff May",
    "gender": "male",
    "email": "goffmay@chorizon.com",
@ -1026,7 +1026,7 @@
    "balance": "$1,201.87",
    "picture": "http://placehold.it/32x32",
    "age": 38,
-    "color": "green",
+    "color": "Green",
    "name": "Goodman Becker",
    "gender": "male",
    "email": "goodmanbecker@chorizon.com",
@ -1069,7 +1069,7 @@
    "balance": "$1,947.08",
    "picture": "http://placehold.it/32x32",
    "age": 21,
-    "color": "green",
+    "color": "Green",
    "name": "Guerra Mcintyre",
    "gender": "male",
    "email": "guerramcintyre@chorizon.com",
@ -1153,7 +1153,7 @@
    "balance": "$2,113.29",
    "picture": "http://placehold.it/32x32",
    "age": 28,
-    "color": "green",
+    "color": "Green",
    "name": "Richards Walls",
    "gender": "male",
    "email": "richardswalls@chorizon.com",
@ -1211,7 +1211,7 @@
    "balance": "$1,844.56",
    "picture": "http://placehold.it/32x32",
    "age": 20,
-    "color": "green",
+    "color": "Green",
    "name": "Kaitlin Conner",
    "gender": "female",
    "email": "kaitlinconner@chorizon.com",
@ -1229,7 +1229,7 @@
    "balance": "$2,876.10",
    "picture": "http://placehold.it/32x32",
    "age": 38,
-    "color": "green",
+    "color": "Green",
    "name": "Mamie Fischer",
    "gender": "female",
    "email": "mamiefischer@chorizon.com",
@ -1252,7 +1252,7 @@
    "balance": "$1,921.58",
    "picture": "http://placehold.it/32x32",
    "age": 31,
-    "color": "green",
+    "color": "Green",
    "name": "Harper Carson",
    "gender": "male",
    "email": "harpercarson@chorizon.com",
@ -1291,7 +1291,7 @@
    "balance": "$2,813.41",
    "picture": "http://placehold.it/32x32",
    "age": 37,
-    "color": "green",
+    "color": "Green",
    "name": "Charles Castillo",
    "gender": "male",
    "email": "charlescastillo@chorizon.com",
@ -1433,7 +1433,7 @@
    "balance": "$1,539.98",
    "picture": "http://placehold.it/32x32",
    "age": 24,
-    "color": "green",
+    "color": "Green",
    "name": "Angelina Dyer",
    "gender": "female",
    "email": "angelinadyer@chorizon.com",
@ -1493,7 +1493,7 @@
    "balance": "$3,381.63",
    "picture": "http://placehold.it/32x32",
    "age": 38,
-    "color": "green",
+    "color": "Green",
    "name": "Candace Sawyer",
    "gender": "female",
    "email": "candacesawyer@chorizon.com",
@ -1514,7 +1514,7 @@
    "balance": "$1,640.98",
    "picture": "http://placehold.it/32x32",
    "age": 27,
-    "color": "green",
+    "color": "Green",
    "name": "Hendricks Martinez",
    "gender": "male",
    "email": "hendricksmartinez@chorizon.com",
@ -1557,7 +1557,7 @@
    "balance": "$1,180.90",
    "picture": "http://placehold.it/32x32",
    "age": 36,
-    "color": "green",
+    "color": "Green",
    "name": "Stark Wong",
    "gender": "male",
    "email": "starkwong@chorizon.com",
@ -1577,7 +1577,7 @@
    "balance": "$1,913.42",
    "picture": "http://placehold.it/32x32",
    "age": 24,
-    "color": "green",
+    "color": "Green",
    "name": "Emma Jacobs",
    "gender": "female",
    "email": "emmajacobs@chorizon.com",
@ -1595,7 +1595,7 @@
    "balance": "$1,274.29",
    "picture": "http://placehold.it/32x32",
    "age": 25,
-    "color": "green",
+    "color": "Green",
    "name": "Clarice Gardner",
    "gender": "female",
    "email": "claricegardner@chorizon.com",
--- a/meilisearch-http/tests/placeholder_search.rs
+++ b/meilisearch-http/tests/placeholder_search.rs
@ -156,7 +156,7 @@ async fn placeholder_search_with_filter() {

    test_post_get_search!(server, query, |response, _status_code| {
        let hits = response["hits"].as_array().unwrap();
-        assert!(hits.iter().all(|v| v["color"].as_str().unwrap() == "green"));
+        assert!(hits.iter().all(|v| v["color"].as_str().unwrap() == "Green"));
    });

    let query = json!({
@ -177,7 +177,7 @@ async fn placeholder_search_with_filter() {
        let bug = Value::String(String::from("bug"));
        let wontfix = Value::String(String::from("wontfix"));
        assert!(hits.iter().all(|v|
-                v["color"].as_str().unwrap() == "green" &&
+                v["color"].as_str().unwrap() == "Green" &&
                v["tags"].as_array().unwrap().contains(&bug) ||
                v["tags"].as_array().unwrap().contains(&wontfix)));
    });
@ -206,7 +206,7 @@ async fn placeholder_test_faceted_search_valid() {
            .as_array()
            .unwrap()
            .iter()
-            .all(|value| value.get("color").unwrap() == "green"));
+            .all(|value| value.get("color").unwrap() == "Green"));
    });

    let query = json!({
@ -296,7 +296,7 @@ async fn placeholder_test_faceted_search_valid() {
                .unwrap() == "blue"
                || value
                .get("color")
-                .unwrap() == "green"));
+                .unwrap() == "Green"));
    });
    // test and-or: ["tags:bug", ["color:blue", "color:green"]]
    let query = json!({
@ -322,7 +322,7 @@ async fn placeholder_test_faceted_search_valid() {
                    .unwrap() == "blue"
                    || value
                    .get("color")
-                    .unwrap() == "green")));
+                    .unwrap() == "Green")));

    });
 }
--- a/meilisearch-http/tests/search.rs
+++ b/meilisearch-http/tests/search.rs
@ -21,7 +21,7 @@ async fn search_with_limit() {
          "balance": "$1,706.13",
          "picture": "http://placehold.it/32x32",
          "age": 27,
-          "color": "green",
+          "color": "Green",
          "name": "Cherry Orr",
          "gender": "female",
          "email": "cherryorr@chorizon.com",
@ -42,7 +42,7 @@ async fn search_with_limit() {
          "balance": "$1,921.58",
          "picture": "http://placehold.it/32x32",
          "age": 31,
-          "color": "green",
+          "color": "Green",
          "name": "Harper Carson",
          "gender": "male",
          "email": "harpercarson@chorizon.com",
@ -101,7 +101,7 @@ async fn search_with_offset() {
          "balance": "$1,921.58",
          "picture": "http://placehold.it/32x32",
          "age": 31,
-          "color": "green",
+          "color": "Green",
          "name": "Harper Carson",
          "gender": "male",
          "email": "harpercarson@chorizon.com",
@ -142,7 +142,7 @@ async fn search_with_offset() {
          "balance": "$2,668.55",
          "picture": "http://placehold.it/32x32",
          "age": 36,
-          "color": "green",
+          "color": "Green",
          "name": "Lucas Hess",
          "gender": "male",
          "email": "lucashess@chorizon.com",
@ -181,7 +181,7 @@ async fn search_with_attribute_to_highlight_wildcard() {
          "balance": "$1,706.13",
          "picture": "http://placehold.it/32x32",
          "age": 27,
-          "color": "green",
+          "color": "Green",
          "name": "Cherry Orr",
          "gender": "female",
          "email": "cherryorr@chorizon.com",
@ -201,7 +201,7 @@ async fn search_with_attribute_to_highlight_wildcard() {
            "balance": "$1,706.13",
            "picture": "http://placehold.it/32x32",
            "age": 27,
-            "color": "green",
+            "color": "Green",
            "name": "<em>Cherry</em> Orr",
            "gender": "female",
            "email": "<em>cherry</em>orr@chorizon.com",
@ -241,7 +241,7 @@ async fn search_with_attribute_to_highlight_1() {
          "balance": "$1,706.13",
          "picture": "http://placehold.it/32x32",
          "age": 27,
-          "color": "green",
+          "color": "Green",
          "name": "Cherry Orr",
          "gender": "female",
          "email": "cherryorr@chorizon.com",
@ -261,7 +261,7 @@ async fn search_with_attribute_to_highlight_1() {
            "balance": "$1,706.13",
            "picture": "http://placehold.it/32x32",
            "age": 27,
-            "color": "green",
+            "color": "Green",
            "name": "<em>Cherry</em> Orr",
            "gender": "female",
            "email": "cherryorr@chorizon.com",
@ -301,7 +301,7 @@ async fn search_with_matches() {
          "balance": "$1,706.13",
          "picture": "http://placehold.it/32x32",
          "age": 27,
-          "color": "green",
+          "color": "Green",
          "name": "Cherry Orr",
          "gender": "female",
          "email": "cherryorr@chorizon.com",
@ -355,7 +355,7 @@ async fn search_with_crop() {
            "balance": "$1,706.13",
            "picture": "http://placehold.it/32x32",
            "age": 27,
-            "color": "green",
+            "color": "Green",
            "name": "Cherry Orr",
            "gender": "female",
            "email": "cherryorr@chorizon.com",
@ -375,7 +375,7 @@ async fn search_with_crop() {
              "balance": "$1,706.13",
              "picture": "http://placehold.it/32x32",
              "age": 27,
-              "color": "green",
+              "color": "Green",
              "name": "Cherry Orr",
              "gender": "female",
              "email": "cherryorr@chorizon.com",
@ -413,7 +413,7 @@ async fn search_with_attributes_to_retrieve() {
      {
          "name": "Cherry Orr",
          "age": 27,
-          "color": "green",
+          "color": "Green",
          "gender": "female"
      }
    ]);
@ -440,7 +440,7 @@ async fn search_with_attributes_to_retrieve_wildcard() {
            "balance": "$1,706.13",
            "picture": "http://placehold.it/32x32",
            "age": 27,
-            "color": "green",
+            "color": "Green",
            "name": "Cherry Orr",
            "gender": "female",
            "email": "cherryorr@chorizon.com",
@ -478,7 +478,7 @@ async fn search_with_filter() {
            "balance": "$1,921.58",
            "picture": "http://placehold.it/32x32",
            "age": 31,
-            "color": "green",
+            "color": "Green",
            "name": "Harper Carson",
            "gender": "male",
            "email": "harpercarson@chorizon.com",
@ -499,7 +499,7 @@ async fn search_with_filter() {
            "balance": "$2,668.55",
            "picture": "http://placehold.it/32x32",
            "age": 36,
-            "color": "green",
+            "color": "Green",
            "name": "Lucas Hess",
            "gender": "male",
            "email": "lucashess@chorizon.com",
@ -547,7 +547,7 @@ async fn search_with_filter() {
            "balance": "$2,668.55",
            "picture": "http://placehold.it/32x32",
            "age": 36,
-            "color": "green",
+            "color": "Green",
            "name": "Lucas Hess",
            "gender": "male",
            "email": "lucashess@chorizon.com",
@ -601,7 +601,7 @@ async fn search_with_filter() {
            "balance": "$1,913.42",
            "picture": "http://placehold.it/32x32",
            "age": 24,
-            "color": "green",
+            "color": "Green",
            "name": "Emma Jacobs",
            "gender": "female",
            "email": "emmajacobs@chorizon.com",
@ -705,7 +705,7 @@ async fn search_with_filter() {
            "balance": "$1,921.58",
            "picture": "http://placehold.it/32x32",
            "age": 31,
-            "color": "green",
+            "color": "Green",
            "name": "Harper Carson",
            "gender": "male",
            "email": "harpercarson@chorizon.com",
@ -726,7 +726,7 @@ async fn search_with_filter() {
            "balance": "$2,668.55",
            "picture": "http://placehold.it/32x32",
            "age": 36,
-            "color": "green",
+            "color": "Green",
            "name": "Lucas Hess",
            "gender": "male",
            "email": "lucashess@chorizon.com",
@ -779,7 +779,7 @@ async fn search_with_filter() {
            "balance": "$1,351.43",
            "picture": "http://placehold.it/32x32",
            "age": 28,
-            "color": "green",
+            "color": "Green",
            "name": "Evans Wagner",
            "gender": "male",
            "email": "evanswagner@chorizon.com",
@ -823,7 +823,7 @@ async fn search_with_attributes_to_highlight_and_matches() {
            "balance": "$1,706.13",
            "picture": "http://placehold.it/32x32",
            "age": 27,
-            "color": "green",
+            "color": "Green",
            "name": "Cherry Orr",
            "gender": "female",
            "email": "cherryorr@chorizon.com",
@ -843,7 +843,7 @@ async fn search_with_attributes_to_highlight_and_matches() {
                "balance": "$1,706.13",
                "picture": "http://placehold.it/32x32",
                "age": 27,
-                "color": "green",
+                "color": "Green",
                "name": "<em>Cherry</em> Orr",
                "gender": "female",
                "email": "<em>cherry</em>orr@chorizon.com",
@ -900,7 +900,7 @@ async fn search_with_attributes_to_highlight_and_matches_and_crop() {
            "balance": "$1,706.13",
            "picture": "http://placehold.it/32x32",
            "age": 27,
-            "color": "green",
+            "color": "Green",
            "name": "Cherry Orr",
            "gender": "female",
            "email": "cherryorr@chorizon.com",
@ -920,7 +920,7 @@ async fn search_with_attributes_to_highlight_and_matches_and_crop() {
                "balance": "$1,706.13",
                "picture": "http://placehold.it/32x32",
                "age": 27,
-                "color": "green",
+                "color": "Green",
                "name": "Cherry Orr",
                "gender": "female",
                "email": "cherryorr@chorizon.com",
@ -1223,7 +1223,7 @@ async fn test_faceted_search_valid() {
            .as_array()
            .unwrap()
            .iter()
-            .all(|value| value.get("color").unwrap() == "green"));
+            .all(|value| value.get("color").unwrap() == "Green"));
    });

    let query = json!({
@ -1318,7 +1318,7 @@ async fn test_faceted_search_valid() {
                .unwrap() == "blue"
                || value
                .get("color")
-                .unwrap() == "green"));
+                .unwrap() == "Green"));
    });
    // test and-or: ["tags:bug", ["color:blue", "color:green"]]
    let query = json!({
@ -1345,7 +1345,7 @@ async fn test_faceted_search_valid() {
                    .unwrap() == "blue"
                    || value
                    .get("color")
-                    .unwrap() == "green")));
+                    .unwrap() == "Green")));

    });
 }
@ -1469,6 +1469,14 @@ async fn test_facet_count() {
        println!("{}", response);
        assert!(response.get("exhaustiveFacetsCount").is_some());
        assert_eq!(response.get("facetsDistribution").unwrap().as_object().unwrap().values().count(), 1);
+        // assert that case is preserved
+        assert!(response["facetsDistribution"]
+            .as_object()
+            .unwrap()["color"]
+            .as_object()
+            .unwrap()
+            .get("Green")
+            .is_some());
    });
    // searching on color and tags
    let query = json!({
--- a/meilisearch-http/tests/search_settings.rs
+++ b/meilisearch-http/tests/search_settings.rs
@ -130,7 +130,7 @@ async fn search_with_settings_stop_words() {
      {
        "balance": "$1,921.58",
        "age": 31,
-        "color": "green",
+        "color": "Green",
        "name": "Harper Carson",
        "gender": "male",
        "email": "harpercarson@chorizon.com",
@ -140,7 +140,7 @@ async fn search_with_settings_stop_words() {
      {
        "balance": "$1,706.13",
        "age": 27,
-        "color": "green",
+        "color": "Green",
        "name": "Cherry Orr",
        "gender": "female",
        "email": "cherryorr@chorizon.com",
@ -213,7 +213,7 @@ async fn search_with_settings_synonyms() {
      {
        "balance": "$1,921.58",
        "age": 31,
-        "color": "green",
+        "color": "Green",
        "name": "Harper Carson",
        "gender": "male",
        "email": "harpercarson@chorizon.com",
@ -223,7 +223,7 @@ async fn search_with_settings_synonyms() {
      {
        "balance": "$1,706.13",
        "age": 27,
-        "color": "green",
+        "color": "Green",
        "name": "Cherry Orr",
        "gender": "female",
        "email": "cherryorr@chorizon.com",
@ -292,7 +292,7 @@ async fn search_with_settings_ranking_rules() {
      {
        "balance": "$1,921.58",
        "age": 31,
-        "color": "green",
+        "color": "Green",
        "name": "Harper Carson",
        "gender": "male",
        "email": "harpercarson@chorizon.com",
@ -302,7 +302,7 @@ async fn search_with_settings_ranking_rules() {
      {
        "balance": "$1,706.13",
        "age": 27,
-        "color": "green",
+        "color": "Green",
        "name": "Cherry Orr",
        "gender": "female",
        "email": "cherryorr@chorizon.com",
@ -438,7 +438,7 @@ async fn search_with_settings_displayed_attributes() {
    let expect = json!([
      {
        "age": 31,
-        "color": "green",
+        "color": "Green",
        "name": "Harper Carson",
        "gender": "male",
        "email": "harpercarson@chorizon.com",
@ -446,7 +446,7 @@ async fn search_with_settings_displayed_attributes() {
      },
      {
        "age": 27,
-        "color": "green",
+        "color": "Green",
        "name": "Cherry Orr",
        "gender": "female",
        "email": "cherryorr@chorizon.com",