diff --git a/index-scheduler/src/batch.rs b/index-scheduler/src/batch.rs
index c3c4229a5..7ca3bfb20 100644
--- a/index-scheduler/src/batch.rs
+++ b/index-scheduler/src/batch.rs
@@ -28,8 +28,7 @@ use meilisearch_types::heed::{RoTxn, RwTxn};
 use meilisearch_types::milli::documents::{obkv_to_object, DocumentsBatchReader};
 use meilisearch_types::milli::heed::CompactionOption;
 use meilisearch_types::milli::update::{
-    DocumentAdditionResult, DocumentDeletionResult, IndexDocumentsConfig, IndexDocumentsMethod,
-    Settings as MilliSettings,
+    DocumentDeletionResult, IndexDocumentsConfig, IndexDocumentsMethod, Settings as MilliSettings,
 };
 use meilisearch_types::milli::{self, BEU32};
 use meilisearch_types::settings::{apply_settings_to_builder, Settings, Unchecked};
@@ -92,12 +91,6 @@ pub(crate) enum DocumentOperation {
     Delete(Vec<String>),
 }
 
-#[derive(Debug)]
-pub(crate) enum DocumentOperationResult {
-    Add(DocumentAdditionResult),
-    Delete(DocumentDeletionResult),
-}
-
 /// A [batch](Batch) that combines multiple tasks operating on an index.
 #[derive(Debug)]
 pub(crate) enum IndexOperation {
@@ -1012,7 +1005,7 @@ impl IndexScheduler {
                 index_uid: _,
                 primary_key,
                 method,
-                documents_counts,
+                documents_counts: _,
                 operations,
                 mut tasks,
             } => {
diff --git a/milli/src/update/index_documents/helpers/merge_functions.rs b/milli/src/update/index_documents/helpers/merge_functions.rs
index 37af7ab6a..6e3aa7ec7 100644
--- a/milli/src/update/index_documents/helpers/merge_functions.rs
+++ b/milli/src/update/index_documents/helpers/merge_functions.rs
@@ -57,21 +57,6 @@ pub fn keep_latest_obkv<'a>(_key: &[u8], obkvs: &[Cow<'a, [u8]>]) -> Result<Cow<
     Ok(obkvs.last().unwrap().clone())
 }
 
-/// Merge all the obks in the order we see them.
-pub fn merge_obkvs<'a>(_key: &[u8], obkvs: &[Cow<'a, [u8]>]) -> Result<Cow<'a, [u8]>> {
-    Ok(obkvs
-        .iter()
-        .cloned()
-        .reduce(|acc, current| {
-            let first = obkv::KvReader::new(&acc);
-            let second = obkv::KvReader::new(&current);
-            let mut buffer = Vec::new();
-            merge_two_obkvs(first, second, &mut buffer);
-            Cow::from(buffer)
-        })
-        .unwrap())
-}
-
 pub fn merge_two_obkvs(base: obkv::KvReaderU16, update: obkv::KvReaderU16, buffer: &mut Vec<u8>) {
     use itertools::merge_join_by;
     use itertools::EitherOrBoth::{Both, Left, Right};
diff --git a/milli/src/update/index_documents/helpers/mod.rs b/milli/src/update/index_documents/helpers/mod.rs
index a496ccd6e..3a25851e4 100644
--- a/milli/src/update/index_documents/helpers/mod.rs
+++ b/milli/src/update/index_documents/helpers/mod.rs
@@ -13,7 +13,7 @@ pub use grenad_helpers::{
     GrenadParameters, MergeableReader,
 };
 pub use merge_functions::{
-    concat_u32s_array, keep_first, keep_latest_obkv, merge_cbo_roaring_bitmaps, merge_obkvs,
+    concat_u32s_array, keep_first, keep_latest_obkv, merge_cbo_roaring_bitmaps,
     merge_roaring_bitmaps, merge_two_obkvs, roaring_bitmap_from_u32s_array,
     serialize_roaring_bitmap, MergeFn,
 };
diff --git a/milli/src/update/index_documents/transform.rs b/milli/src/update/index_documents/transform.rs
index 50d3d4248..ebe1608fa 100644
--- a/milli/src/update/index_documents/transform.rs
+++ b/milli/src/update/index_documents/transform.rs
@@ -12,9 +12,7 @@ use roaring::RoaringBitmap;
 use serde_json::Value;
 use smartstring::SmartString;
 
-use super::helpers::{
-    create_sorter, create_writer, keep_latest_obkv, merge_obkvs, merge_two_obkvs, MergeFn,
-};
+use super::helpers::{create_sorter, create_writer, keep_latest_obkv, merge_two_obkvs, MergeFn};
 use super::{IndexDocumentsMethod, IndexerConfig};
 use crate::documents::{DocumentsBatchIndex, EnrichedDocument, EnrichedDocumentsBatchReader};
 use crate::error::{Error, InternalError, UserError};