diff --git a/src/datanode/src/region_server.rs b/src/datanode/src/region_server.rs
index 2255734e85f4..b257bf57e6f7 100644
--- a/src/datanode/src/region_server.rs
+++ b/src/datanode/src/region_server.rs
@@ -50,7 +50,7 @@ use session::context::{QueryContextBuilder, QueryContextRef};
 use snafu::{OptionExt, ResultExt};
 use store_api::metadata::RegionMetadataRef;
 use store_api::region_engine::{RegionEngineRef, RegionRole, SetReadonlyResponse};
-use store_api::region_request::{RegionCloseRequest, RegionRequest};
+use store_api::region_request::{AffectedRows, RegionCloseRequest, RegionRequest};
 use store_api::storage::{RegionId, ScanRequest};
 use substrait::{DFLogicalSubstraitConvertor, SubstraitPlan};
 use table::table::scan::StreamScanAdapter;
@@ -112,7 +112,7 @@ impl RegionServer {
         &self,
         region_id: RegionId,
         request: RegionRequest,
-    ) -> Result<usize> {
+    ) -> Result<AffectedRows> {
         self.inner.handle_request(region_id, request).await
     }
 
@@ -288,7 +288,7 @@ impl RegionServerInner {
         &self,
         region_id: RegionId,
         request: RegionRequest,
-    ) -> Result<usize> {
+    ) -> Result<AffectedRows> {
         let request_type = request.request_type();
         let _timer = crate::metrics::HANDLE_REGION_REQUEST_ELAPSED
             .with_label_values(&[request_type])
diff --git a/src/datanode/src/tests.rs b/src/datanode/src/tests.rs
index 0c0a55d28ac9..b5926c0c2230 100644
--- a/src/datanode/src/tests.rs
+++ b/src/datanode/src/tests.rs
@@ -31,7 +31,7 @@ use query::QueryEngine;
 use session::context::QueryContextRef;
 use store_api::metadata::RegionMetadataRef;
 use store_api::region_engine::{RegionEngine, RegionRole, SetReadonlyResponse};
-use store_api::region_request::RegionRequest;
+use store_api::region_request::{AffectedRows, RegionRequest};
 use store_api::storage::{RegionId, ScanRequest};
 use table::TableRef;
 use tokio::sync::mpsc::{Receiver, Sender};
@@ -109,7 +109,7 @@ impl RegionEngine for MockRegionEngine {
         &self,
         region_id: RegionId,
         request: RegionRequest,
-    ) -> Result<usize, BoxedError> {
+    ) -> Result<AffectedRows, BoxedError> {
         let _ = self.sender.send((region_id, request)).await;
         Ok(0)
     }
diff --git a/src/file-engine/src/engine.rs b/src/file-engine/src/engine.rs
index 5608fbd9af19..c8b9f82992c2 100644
--- a/src/file-engine/src/engine.rs
+++ b/src/file-engine/src/engine.rs
@@ -25,7 +25,8 @@ use snafu::{ensure, OptionExt};
 use store_api::metadata::RegionMetadataRef;
 use store_api::region_engine::{RegionEngine, RegionRole, SetReadonlyResponse};
 use store_api::region_request::{
-    RegionCloseRequest, RegionCreateRequest, RegionDropRequest, RegionOpenRequest, RegionRequest,
+    AffectedRows, RegionCloseRequest, RegionCreateRequest, RegionDropRequest, RegionOpenRequest,
+    RegionRequest,
 };
 use store_api::storage::{RegionId, ScanRequest};
 use tokio::sync::Mutex;
@@ -58,7 +59,7 @@ impl RegionEngine for FileRegionEngine {
         &self,
         region_id: RegionId,
         request: RegionRequest,
-    ) -> Result<usize, BoxedError> {
+    ) -> Result<AffectedRows, BoxedError> {
         self.inner
             .handle_request(region_id, request)
             .await
@@ -148,7 +149,7 @@ impl EngineInner {
         &self,
         region_id: RegionId,
         request: RegionRequest,
-    ) -> EngineResult<usize> {
+    ) -> EngineResult<AffectedRows> {
         match request {
             RegionRequest::Create(req) => self.handle_create(region_id, req).await,
             RegionRequest::Drop(req) => self.handle_drop(region_id, req).await,
@@ -186,7 +187,7 @@ impl EngineInner {
         &self,
         region_id: RegionId,
         request: RegionCreateRequest,
-    ) -> EngineResult<usize> {
+    ) -> EngineResult<AffectedRows> {
         ensure!(
             request.engine == FILE_ENGINE,
             UnexpectedEngineSnafu {
@@ -223,7 +224,7 @@ impl EngineInner {
         &self,
         region_id: RegionId,
         request: RegionOpenRequest,
-    ) -> EngineResult<usize> {
+    ) -> EngineResult<AffectedRows> {
         if self.exists(region_id).await {
             return Ok(0);
         }
@@ -253,7 +254,7 @@ impl EngineInner {
         &self,
         region_id: RegionId,
         _request: RegionCloseRequest,
-    ) -> EngineResult<usize> {
+    ) -> EngineResult<AffectedRows> {
         let _lock = self.region_mutex.lock().await;
 
         let mut regions = self.regions.write().unwrap();
@@ -268,7 +269,7 @@ impl EngineInner {
         &self,
         region_id: RegionId,
         _request: RegionDropRequest,
-    ) -> EngineResult<usize> {
+    ) -> EngineResult<AffectedRows> {
         if !self.exists(region_id).await {
             return RegionNotFoundSnafu { region_id }.fail();
         }
diff --git a/src/metric-engine/src/data_region.rs b/src/metric-engine/src/data_region.rs
index 3b40e115f6e5..f9ee734ffc56 100644
--- a/src/metric-engine/src/data_region.rs
+++ b/src/metric-engine/src/data_region.rs
@@ -19,7 +19,7 @@ use snafu::ResultExt;
 use store_api::metadata::ColumnMetadata;
 use store_api::region_engine::RegionEngine;
 use store_api::region_request::{
-    AddColumn, AlterKind, RegionAlterRequest, RegionPutRequest, RegionRequest,
+    AddColumn, AffectedRows, AlterKind, RegionAlterRequest, RegionPutRequest, RegionRequest,
 };
 use store_api::storage::consts::ReservedColumnId;
 use store_api::storage::RegionId;
@@ -136,7 +136,7 @@ impl DataRegion {
         &self,
         region_id: RegionId,
         request: RegionPutRequest,
-    ) -> Result<usize> {
+    ) -> Result<AffectedRows> {
         let region_id = utils::to_data_region_id(region_id);
         self.mito
             .handle_request(region_id, RegionRequest::Put(request))
diff --git a/src/metric-engine/src/engine.rs b/src/metric-engine/src/engine.rs
index 330592c4fa44..17aa7e5a334c 100644
--- a/src/metric-engine/src/engine.rs
+++ b/src/metric-engine/src/engine.rs
@@ -28,7 +28,7 @@ use common_recordbatch::SendableRecordBatchStream;
 use mito2::engine::MitoEngine;
 use store_api::metadata::RegionMetadataRef;
 use store_api::region_engine::{RegionEngine, RegionRole, SetReadonlyResponse};
-use store_api::region_request::RegionRequest;
+use store_api::region_request::{AffectedRows, RegionRequest};
 use store_api::storage::{RegionId, ScanRequest};
 use tokio::sync::RwLock;
 
@@ -113,7 +113,7 @@ impl RegionEngine for MetricEngine {
         &self,
         region_id: RegionId,
         request: RegionRequest,
-    ) -> Result<usize, BoxedError> {
+    ) -> Result<AffectedRows, BoxedError> {
         let result = match request {
             RegionRequest::Put(put) => self.inner.put_region(region_id, put).await,
             RegionRequest::Delete(_) => todo!(),
diff --git a/src/metric-engine/src/engine/put.rs b/src/metric-engine/src/engine/put.rs
index f37b0b5e4526..6cbc8c7b3ca1 100644
--- a/src/metric-engine/src/engine/put.rs
+++ b/src/metric-engine/src/engine/put.rs
@@ -19,7 +19,7 @@ use api::v1::value::ValueData;
 use api::v1::{ColumnDataType, ColumnSchema, Row, Rows, SemanticType};
 use common_telemetry::{error, info};
 use snafu::OptionExt;
-use store_api::region_request::RegionPutRequest;
+use store_api::region_request::{AffectedRows, RegionPutRequest};
 use store_api::storage::{RegionId, TableId};
 
 use crate::consts::{DATA_SCHEMA_TABLE_ID_COLUMN_NAME, DATA_SCHEMA_TSID_COLUMN_NAME, RANDOM_STATE};
@@ -36,7 +36,7 @@ impl MetricEngineInner {
         &self,
         region_id: RegionId,
         request: RegionPutRequest,
-    ) -> Result<usize> {
+    ) -> Result<AffectedRows> {
         let is_putting_physical_region = self
             .state
             .read()
@@ -60,7 +60,7 @@ impl MetricEngineInner {
         &self,
         logical_region_id: RegionId,
         mut request: RegionPutRequest,
-    ) -> Result<usize> {
+    ) -> Result<AffectedRows> {
         let physical_region_id = *self
             .state
             .read()
diff --git a/src/mito2/src/engine.rs b/src/mito2/src/engine.rs
index 58b0dec4fc56..f1a7e4455d04 100644
--- a/src/mito2/src/engine.rs
+++ b/src/mito2/src/engine.rs
@@ -50,7 +50,7 @@ use snafu::{OptionExt, ResultExt};
 use store_api::logstore::LogStore;
 use store_api::metadata::RegionMetadataRef;
 use store_api::region_engine::{RegionEngine, RegionRole, SetReadonlyResponse};
-use store_api::region_request::RegionRequest;
+use store_api::region_request::{AffectedRows, RegionRequest};
 use store_api::storage::{RegionId, ScanRequest};
 
 use crate::config::MitoConfig;
@@ -146,7 +146,11 @@ impl EngineInner {
     }
 
     /// Handles [RegionRequest] and return its executed result.
-    async fn handle_request(&self, region_id: RegionId, request: RegionRequest) -> Result<usize> {
+    async fn handle_request(
+        &self,
+        region_id: RegionId,
+        request: RegionRequest,
+    ) -> Result<AffectedRows> {
         let _timer = HANDLE_REQUEST_ELAPSED
             .with_label_values(&[request.type_name()])
             .start_timer();
@@ -219,7 +223,7 @@ impl RegionEngine for MitoEngine {
         &self,
         region_id: RegionId,
         request: RegionRequest,
-    ) -> Result<usize, BoxedError> {
+    ) -> Result<AffectedRows, BoxedError> {
         self.inner
             .handle_request(region_id, request)
             .await
diff --git a/src/mito2/src/request.rs b/src/mito2/src/request.rs
index c603ea2c3ee0..47241d6bf999 100644
--- a/src/mito2/src/request.rs
+++ b/src/mito2/src/request.rs
@@ -32,8 +32,9 @@ use snafu::{ensure, OptionExt, ResultExt};
 use store_api::metadata::{ColumnMetadata, RegionMetadata};
 use store_api::region_engine::SetReadonlyResponse;
 use store_api::region_request::{
-    RegionAlterRequest, RegionCloseRequest, RegionCompactRequest, RegionCreateRequest,
-    RegionDropRequest, RegionFlushRequest, RegionOpenRequest, RegionRequest, RegionTruncateRequest,
+    AffectedRows, RegionAlterRequest, RegionCloseRequest, RegionCompactRequest,
+    RegionCreateRequest, RegionDropRequest, RegionFlushRequest, RegionOpenRequest, RegionRequest,
+    RegionTruncateRequest,
 };
 use store_api::storage::{RegionId, SequenceNumber};
 use tokio::sync::oneshot::{self, Receiver, Sender};
@@ -382,16 +383,16 @@ pub(crate) fn validate_proto_value(
 
 /// Oneshot output result sender.
 #[derive(Debug)]
-pub(crate) struct OutputTx(Sender<Result<usize>>);
+pub(crate) struct OutputTx(Sender<Result<AffectedRows>>);
 
 impl OutputTx {
     /// Creates a new output sender.
-    pub(crate) fn new(sender: Sender<Result<usize>>) -> OutputTx {
+    pub(crate) fn new(sender: Sender<Result<AffectedRows>>) -> OutputTx {
         OutputTx(sender)
     }
 
     /// Sends the `result`.
-    pub(crate) fn send(self, result: Result<usize>) {
+    pub(crate) fn send(self, result: Result<AffectedRows>) {
         // Ignores send result.
         let _ = self.0.send(result);
     }
@@ -413,14 +414,14 @@ impl OptionOutputTx {
     }
 
     /// Sends the `result` and consumes the inner sender.
-    pub(crate) fn send_mut(&mut self, result: Result<usize>) {
+    pub(crate) fn send_mut(&mut self, result: Result<AffectedRows>) {
         if let Some(sender) = self.0.take() {
             sender.send(result);
         }
     }
 
     /// Sends the `result` and consumes the sender.
-    pub(crate) fn send(mut self, result: Result<usize>) {
+    pub(crate) fn send(mut self, result: Result<AffectedRows>) {
         if let Some(sender) = self.0.take() {
             sender.send(result);
         }
@@ -432,8 +433,8 @@ impl OptionOutputTx {
     }
 }
 
-impl From<Sender<Result<usize>>> for OptionOutputTx {
-    fn from(sender: Sender<Result<usize>>) -> Self {
+impl From<Sender<Result<AffectedRows>>> for OptionOutputTx {
+    fn from(sender: Sender<Result<AffectedRows>>) -> Self {
         Self::new(Some(OutputTx::new(sender)))
     }
 }
@@ -492,7 +493,7 @@ impl WorkerRequest {
     pub(crate) fn try_from_region_request(
         region_id: RegionId,
         value: RegionRequest,
-    ) -> Result<(WorkerRequest, Receiver<Result<usize>>)> {
+    ) -> Result<(WorkerRequest, Receiver<Result<AffectedRows>>)> {
         let (sender, receiver) = oneshot::channel();
         let worker_request = match value {
             RegionRequest::Put(v) => {
diff --git a/src/mito2/src/worker/handle_close.rs b/src/mito2/src/worker/handle_close.rs
index 1ae6bbdb5adb..80f1bfa63235 100644
--- a/src/mito2/src/worker/handle_close.rs
+++ b/src/mito2/src/worker/handle_close.rs
@@ -15,6 +15,7 @@
 //! Handling close request.
 
 use common_telemetry::info;
+use store_api::region_request::AffectedRows;
 use store_api::storage::RegionId;
 
 use crate::error::Result;
@@ -22,7 +23,10 @@ use crate::metrics::REGION_COUNT;
 use crate::worker::RegionWorkerLoop;
 
 impl<S> RegionWorkerLoop<S> {
-    pub(crate) async fn handle_close_request(&mut self, region_id: RegionId) -> Result<usize> {
+    pub(crate) async fn handle_close_request(
+        &mut self,
+        region_id: RegionId,
+    ) -> Result<AffectedRows> {
         let Some(region) = self.regions.get_region(region_id) else {
             return Ok(0);
         };
diff --git a/src/mito2/src/worker/handle_create.rs b/src/mito2/src/worker/handle_create.rs
index 5eebfe9bf28f..6d86ddb1887f 100644
--- a/src/mito2/src/worker/handle_create.rs
+++ b/src/mito2/src/worker/handle_create.rs
@@ -20,7 +20,7 @@ use common_telemetry::info;
 use snafu::ResultExt;
 use store_api::logstore::LogStore;
 use store_api::metadata::RegionMetadataBuilder;
-use store_api::region_request::RegionCreateRequest;
+use store_api::region_request::{AffectedRows, RegionCreateRequest};
 use store_api::storage::RegionId;
 
 use crate::error::{InvalidMetadataSnafu, Result};
@@ -33,7 +33,7 @@ impl<S: LogStore> RegionWorkerLoop<S> {
         &mut self,
         region_id: RegionId,
         request: RegionCreateRequest,
-    ) -> Result<usize> {
+    ) -> Result<AffectedRows> {
         // Checks whether the table exists.
         if let Some(region) = self.regions.get_region(region_id) {
             // Region already exists.
diff --git a/src/mito2/src/worker/handle_drop.rs b/src/mito2/src/worker/handle_drop.rs
index e03f9df42922..fa0d1181a988 100644
--- a/src/mito2/src/worker/handle_drop.rs
+++ b/src/mito2/src/worker/handle_drop.rs
@@ -21,6 +21,7 @@ use futures::TryStreamExt;
 use object_store::util::join_path;
 use object_store::{EntryMode, ObjectStore};
 use snafu::ResultExt;
+use store_api::region_request::AffectedRows;
 use store_api::storage::RegionId;
 use tokio::time::sleep;
 
@@ -33,7 +34,10 @@ const GC_TASK_INTERVAL_SEC: u64 = 5 * 60; // 5 minutes
 const MAX_RETRY_TIMES: u64 = 288; // 24 hours (5m * 288)
 
 impl<S> RegionWorkerLoop<S> {
-    pub(crate) async fn handle_drop_request(&mut self, region_id: RegionId) -> Result<usize> {
+    pub(crate) async fn handle_drop_request(
+        &mut self,
+        region_id: RegionId,
+    ) -> Result<AffectedRows> {
         let region = self.regions.writable_region(region_id)?;
 
         info!("Try to drop region: {}", region_id);
diff --git a/src/mito2/src/worker/handle_open.rs b/src/mito2/src/worker/handle_open.rs
index dd9447ab7a80..095da683a8f5 100644
--- a/src/mito2/src/worker/handle_open.rs
+++ b/src/mito2/src/worker/handle_open.rs
@@ -20,7 +20,7 @@ use common_telemetry::info;
 use object_store::util::join_path;
 use snafu::{OptionExt, ResultExt};
 use store_api::logstore::LogStore;
-use store_api::region_request::RegionOpenRequest;
+use store_api::region_request::{AffectedRows, RegionOpenRequest};
 use store_api::storage::RegionId;
 
 use crate::error::{ObjectStoreNotFoundSnafu, OpenDalSnafu, RegionNotFoundSnafu, Result};
@@ -34,7 +34,7 @@ impl<S: LogStore> RegionWorkerLoop<S> {
         &mut self,
         region_id: RegionId,
         request: RegionOpenRequest,
-    ) -> Result<usize> {
+    ) -> Result<AffectedRows> {
         if self.regions.is_region_exists(region_id) {
             return Ok(0);
         }
diff --git a/src/mito2/src/worker/handle_truncate.rs b/src/mito2/src/worker/handle_truncate.rs
index 4749efa2455e..ecb66817b30c 100644
--- a/src/mito2/src/worker/handle_truncate.rs
+++ b/src/mito2/src/worker/handle_truncate.rs
@@ -16,6 +16,7 @@
 
 use common_telemetry::info;
 use store_api::logstore::LogStore;
+use store_api::region_request::AffectedRows;
 use store_api::storage::RegionId;
 
 use crate::error::Result;
@@ -23,7 +24,10 @@ use crate::manifest::action::{RegionMetaAction, RegionMetaActionList, RegionTrun
 use crate::worker::RegionWorkerLoop;
 
 impl<S: LogStore> RegionWorkerLoop<S> {
-    pub(crate) async fn handle_truncate_request(&mut self, region_id: RegionId) -> Result<usize> {
+    pub(crate) async fn handle_truncate_request(
+        &mut self,
+        region_id: RegionId,
+    ) -> Result<AffectedRows> {
         let region = self.regions.writable_region(region_id)?;
 
         info!("Try to truncate region {}", region_id);
diff --git a/src/store-api/src/region_engine.rs b/src/store-api/src/region_engine.rs
index 1936ca74e144..f80c7d94ec06 100644
--- a/src/store-api/src/region_engine.rs
+++ b/src/store-api/src/region_engine.rs
@@ -24,7 +24,7 @@ use serde::{Deserialize, Serialize};
 
 use crate::logstore::entry;
 use crate::metadata::RegionMetadataRef;
-use crate::region_request::RegionRequest;
+use crate::region_request::{AffectedRows, RegionRequest};
 use crate::storage::{RegionId, ScanRequest};
 
 /// The result of setting readonly for the region.
@@ -118,7 +118,7 @@ pub trait RegionEngine: Send + Sync {
         &self,
         region_id: RegionId,
         request: RegionRequest,
-    ) -> Result<usize, BoxedError>;
+    ) -> Result<AffectedRows, BoxedError>;
 
     /// Handles substrait query and return a stream of record batches
     async fn handle_query(
diff --git a/src/store-api/src/region_request.rs b/src/store-api/src/region_request.rs
index 928f2abd73ee..e04382c64f74 100644
--- a/src/store-api/src/region_request.rs
+++ b/src/store-api/src/region_request.rs
@@ -28,6 +28,8 @@ use crate::metadata::{
 use crate::path_utils::region_dir;
 use crate::storage::{ColumnId, RegionId, ScanRequest};
 
+pub type AffectedRows = usize;
+
 #[derive(Debug, IntoStaticStr)]
 pub enum RegionRequest {
     Put(RegionPutRequest),