diff --git a/docs/reference/es_compatible_api.md b/docs/reference/es_compatible_api.md
index 3302e85826..de8994a87e 100644
--- a/docs/reference/es_compatible_api.md
+++ b/docs/reference/es_compatible_api.md
@@ -463,8 +463,6 @@ The following query types are supported.
 | `analyzer`         | String          | Analyzer meant to cut the query into terms. It is recommended to NOT use this parameter.                                       | The actual field tokenizer. |
 
 
-
-
 ### `match_bool_prefix`
 
 [Elasticsearch reference documentation](https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-match-query-phrase-prefix.html)
@@ -560,11 +558,17 @@ Contrary to ES/Opensearch, in Quickwit, at most 50 terms will be considered when
 | Type            | Description                                                                                 |
 | --------------- | ------------------------------------------------------------------------------------------- |
 | `most_fields`   | (default) Finds documents which match any field and combines the `_score` from each field.  |
-| `phrase`        | Runs a `match_phrase` query on each field and uses the `_score` from the best field .       |
-| `phrase_prefix` | Runs a `match_phrase_prefix` query on each field and uses the `_score` from the best field. |
+| `phrase`        | Runs a `match_phrase` query on each field.       |
+| `phrase_prefix` | Runs a `match_phrase_prefix` query on each field. |
+| `bool_prefix`   | Runs a `match_bool_prefix` query on each field. |
 
+:::warning
 
+In `phrase`, `phrase_prefix` and `bool_prefix` modes, Quickwit sums the score of the different fields instead of returns their max.
 
+Also, while Quickwit does not support `best_fields` or `cross_fields`, it will not return an error when presented a `best_fields` or `cross_fields` type. For compatibilility reasons,  Quickwit will silently accept these parameters and interpret them as a `most_fields` type.
+
+:::
 
 ### `term`
 
diff --git a/quickwit/quickwit-query/src/elastic_query_dsl/range_query.rs b/quickwit/quickwit-query/src/elastic_query_dsl/range_query.rs
index 5fc1d970f7..88b9df05c1 100644
--- a/quickwit/quickwit-query/src/elastic_query_dsl/range_query.rs
+++ b/quickwit/quickwit-query/src/elastic_query_dsl/range_query.rs
@@ -40,6 +40,7 @@ pub struct RangeQueryParams {
     lte: Option<JsonLiteral>,
     #[serde(default)]
     boost: Option<NotNaNf32>,
+    // Currently NO-OP (see #5109)
     #[serde(default)]
     format: Option<JsonLiteral>,
 }
diff --git a/quickwit/quickwit-serve/src/elasticsearch_api/model/search_body.rs b/quickwit/quickwit-serve/src/elasticsearch_api/model/search_body.rs
index d6e0d8282c..abdd8ff189 100644
--- a/quickwit/quickwit-serve/src/elasticsearch_api/model/search_body.rs
+++ b/quickwit/quickwit-serve/src/elasticsearch_api/model/search_body.rs
@@ -66,28 +66,9 @@ struct FieldSortParams {
     pub date_format: Option<ElasticDateFormat>,
 }
 
-#[derive(Debug, Serialize, Deserialize, Clone, PartialEq)]
-pub struct SourceObject {
-    includes: Option<Vec<String>>,
-    excludes: Option<Vec<String>>,
-}
-
-#[derive(Debug, Serialize, Deserialize, Clone, PartialEq)]
-#[serde(untagged)]
-pub enum Source {
-    Bool(bool),
-    String(String),
-    List(Vec<String>),
-    Object(SourceObject),
-}
-
 #[derive(Debug, Default, Clone, Deserialize, PartialEq)]
 #[serde(deny_unknown_fields)]
 pub struct SearchBody {
-    #[serde(default)]
-    pub _source: Option<Source>,
-    #[serde(default)]
-    pub docvalue_fields: Option<serde_json::Value>,
     #[serde(default)]
     pub from: Option<u64>,
     #[serde(default)]
@@ -105,12 +86,18 @@ pub struct SearchBody {
     pub stored_fields: Option<BTreeSet<String>>,
     #[serde(default)]
     pub search_after: Vec<serde_json::Value>,
+
+    // Ignored values, only here for compatibility with opendashboard.
+    #[serde(default)]
+    pub _source: serde::de::IgnoredAny,
+    #[serde(default)]
+    pub docvalue_fields: serde::de::IgnoredAny,
     #[serde(default)]
-    pub script_fields: Option<serde_json::Value>,
+    pub script_fields: serde::de::IgnoredAny,
     #[serde(default)]
-    pub highlight: Option<serde_json::Value>,
+    pub highlight: serde::de::IgnoredAny,
     #[serde(default)]
-    pub version: Option<bool>,
+    pub version: serde::de::IgnoredAny,
 }
 
 struct FieldSortVecVisitor;
@@ -289,10 +276,6 @@ mod tests {
         let search_body = serde_json::from_str::<SearchBody>(json);
         let error_msg = search_body.unwrap_err().to_string();
         assert!(error_msg.contains("unknown field `term`"));
-        assert!(error_msg.contains(
-            "expected one of `_source`, `docvalue_fields`, `from`, `size`, `query`, `sort`, \
-             `aggs`, `track_total_hits`, `stored_fields`, `search_after`, `script_fields`, \
-             `highlight`, `version`"
-        ));
+        assert!(error_msg.contains("expected one of "));
     }
 }