diff --git a/src/common/meta/src/error.rs b/src/common/meta/src/error.rs
index 6a0a385e3e38..dd94668b5d84 100644
--- a/src/common/meta/src/error.rs
+++ b/src/common/meta/src/error.rs
@@ -332,10 +332,7 @@ pub enum Error {
     EmptyTopicPool { location: Location },
 
     #[snafu(display("Unexpected table route type: {}", err_msg))]
-    UnexpectedTableRouteType {
-        location: Location,
-        err_msg: String,
-    },
+    UnexpectedTableRouteType { location: Location, err_msg: String },
 }
 
 pub type Result<T> = std::result::Result<T, Error>;
diff --git a/src/common/meta/src/key.rs b/src/common/meta/src/key.rs
index eda184322874..57de421be202 100644
--- a/src/common/meta/src/key.rs
+++ b/src/common/meta/src/key.rs
@@ -897,7 +897,11 @@ mod tests {
             table_info
         );
         assert_eq!(
-            remote_table_route.unwrap().into_inner().region_routes(),
+            remote_table_route
+                .unwrap()
+                .into_inner()
+                .region_routes()
+                .unwrap(),
             region_routes
         );
     }
@@ -978,7 +982,7 @@ mod tests {
             .unwrap()
             .unwrap()
             .into_inner();
-        assert_eq!(removed_table_route.region_routes(), region_routes);
+        assert_eq!(removed_table_route.region_routes().unwrap(), region_routes);
     }
 
     #[tokio::test]
@@ -1173,11 +1177,11 @@ mod tests {
             .unwrap();
 
         assert_eq!(
-            updated_route_value.region_routes()[0].leader_status,
+            updated_route_value.region_routes().unwrap()[0].leader_status,
             Some(RegionStatus::Downgraded)
         );
         assert_eq!(
-            updated_route_value.region_routes()[1].leader_status,
+            updated_route_value.region_routes().unwrap()[1].leader_status,
             Some(RegionStatus::Downgraded)
         );
     }
@@ -1271,7 +1275,8 @@ mod tests {
         let current_table_route_value = DeserializedValueWithBytes::from_inner(
             current_table_route_value
                 .inner
-                .update(new_region_routes.clone()),
+                .update(new_region_routes.clone())
+                .unwrap(),
         );
         let new_region_routes = vec![new_region_route(2, 4), new_region_route(5, 5)];
         // it should be ok.
@@ -1295,13 +1300,16 @@ mod tests {
 
         // if the current_table_route_value is wrong, it should return an error.
         // The ABA problem.
-        let wrong_table_route_value =
-            DeserializedValueWithBytes::from_inner(current_table_route_value.update(vec![
-                new_region_route(1, 1),
-                new_region_route(2, 2),
-                new_region_route(3, 3),
-                new_region_route(4, 4),
-            ]));
+        let wrong_table_route_value = DeserializedValueWithBytes::from_inner(
+            current_table_route_value
+                .update(vec![
+                    new_region_route(1, 1),
+                    new_region_route(2, 2),
+                    new_region_route(3, 3),
+                    new_region_route(4, 4),
+                ])
+                .unwrap(),
+        );
         assert!(table_metadata_manager
             .update_table_route(
                 table_id,
diff --git a/src/common/meta/src/key/table_route.rs b/src/common/meta/src/key/table_route.rs
index 8cf0337f430c..537457ad3291 100644
--- a/src/common/meta/src/key/table_route.rs
+++ b/src/common/meta/src/key/table_route.rs
@@ -16,7 +16,7 @@ use std::collections::HashMap;
 use std::fmt::Display;
 
 use serde::{Deserialize, Serialize};
-use snafu::{ResultExt, ensure};
+use snafu::{ensure, ResultExt};
 use store_api::storage::{RegionId, RegionNumber};
 use table::metadata::TableId;
 
@@ -62,7 +62,7 @@ impl TableRouteValue {
     }
 
     /// Returns a new version [TableRouteValue] with `region_routes`.
-    /// 
+    ///
     /// # Panics
     /// The route type is not the [TableRouteValue::Physical].
     pub fn update(&self, region_routes: Vec<RegionRoute>) -> Result<Self> {
@@ -82,7 +82,7 @@ impl TableRouteValue {
     /// Returns the version.
     ///
     /// For test purpose.
-    /// 
+    ///
     /// # Panics
     /// The route type is not the [TableRouteValue::Physical].
     #[cfg(any(test, feature = "testing"))]
@@ -97,7 +97,7 @@ impl TableRouteValue {
     }
 
     /// Returns the corresponding [RegionRoute].
-    /// 
+    ///
     /// # Panics
     /// The route type is not the [TableRouteValue::Physical].
     pub fn region_route(&self, region_id: RegionId) -> Result<Option<RegionRoute>> {
@@ -107,7 +107,8 @@ impl TableRouteValue {
                 err_msg: "{self:?} is a non-physical TableRouteValue.",
             }
         );
-        Ok(self.physical_table_route()
+        Ok(self
+            .physical_table_route()
             .region_routes
             .iter()
             .find(|route| route.region.id == region_id)
diff --git a/src/meta-srv/src/error.rs b/src/meta-srv/src/error.rs
index 4839de185294..a44b4a6f50f2 100644
--- a/src/meta-srv/src/error.rs
+++ b/src/meta-srv/src/error.rs
@@ -720,7 +720,7 @@ impl ErrorExt for Error {
             | Error::TableMetadataManager { source, .. }
             | Error::KvBackend { source, .. }
             | Error::UpdateTableRoute { source, .. }
-            | Error::GetFullTableInfo { source, .. } 
+            | Error::GetFullTableInfo { source, .. }
             | Error::UnexpectedTableRouteType { source, .. } => source.status_code(),
 
             Error::InitMetadata { source, .. } | Error::InitDdlManager { source, .. } => {
diff --git a/src/meta-srv/src/procedure/region_failover/deactivate_region.rs b/src/meta-srv/src/procedure/region_failover/deactivate_region.rs
index c2d06590aec2..650c794126a6 100644
--- a/src/meta-srv/src/procedure/region_failover/deactivate_region.rs
+++ b/src/meta-srv/src/procedure/region_failover/deactivate_region.rs
@@ -208,6 +208,7 @@ mod tests {
 
         let should_downgraded = table_route_value
             .region_routes()
+            .unwrap()
             .iter()
             .find(|route| route.region.id.region_number() == failed_region.region_number)
             .unwrap();
diff --git a/src/meta-srv/src/procedure/region_failover/update_metadata.rs b/src/meta-srv/src/procedure/region_failover/update_metadata.rs
index 53f7d15464b4..66f64dd597c6 100644
--- a/src/meta-srv/src/procedure/region_failover/update_metadata.rs
+++ b/src/meta-srv/src/procedure/region_failover/update_metadata.rs
@@ -85,9 +85,10 @@ impl UpdateRegionMetadata {
             .context(error::TableMetadataManagerSnafu)?
             .context(TableRouteNotFoundSnafu { table_id })?;
 
-        let mut new_region_routes = table_route_value.region_routes()
-            .context(error::UnexpectedTableRouteTypeSnafu { 
-                err_msg: "{self:?} is a non-physical TableRouteValue.", 
+        let mut new_region_routes = table_route_value
+            .region_routes()
+            .context(error::UnexpectedTableRouteTypeSnafu {
+                err_msg: "{self:?} is a non-physical TableRouteValue.",
             })?
             .clone();
 
@@ -238,6 +239,7 @@ mod tests {
                 .unwrap()
                 .into_inner()
                 .region_routes()
+                .unwrap()
                 .clone()
         }
 
@@ -400,8 +402,8 @@ mod tests {
                 .unwrap()
                 .into_inner();
 
-            let peers = &extract_all_peers(table_route_value.region_routes());
-            let actual = table_route_value.region_routes();
+            let peers = &extract_all_peers(table_route_value.region_routes().unwrap());
+            let actual = table_route_value.region_routes().unwrap();
             let expected = &vec![
                 new_region_route(1, peers, 2),
                 new_region_route(2, peers, 3),
@@ -420,7 +422,7 @@ mod tests {
                 .unwrap()
                 .into_inner();
 
-            let map = region_distribution(table_route_value.region_routes()).unwrap();
+            let map = region_distribution(table_route_value.region_routes().unwrap()).unwrap();
             assert_eq!(map.len(), 2);
             assert_eq!(map.get(&2), Some(&vec![1, 3]));
             assert_eq!(map.get(&3), Some(&vec![2, 4]));
diff --git a/src/meta-srv/src/procedure/region_migration.rs b/src/meta-srv/src/procedure/region_migration.rs
index 5299972236e0..deb08ce52641 100644
--- a/src/meta-srv/src/procedure/region_migration.rs
+++ b/src/meta-srv/src/procedure/region_migration.rs
@@ -735,7 +735,7 @@ mod tests {
             .unwrap()
             .version();
         // Should be unchanged.
-        assert_eq!(table_routes_version, 0);
+        assert_eq!(table_routes_version.unwrap(), 0);
     }
 
     #[tokio::test]
diff --git a/src/meta-srv/src/procedure/region_migration/manager.rs b/src/meta-srv/src/procedure/region_migration/manager.rs
index 30da1b7e4e29..4911aa2a517e 100644
--- a/src/meta-srv/src/procedure/region_migration/manager.rs
+++ b/src/meta-srv/src/procedure/region_migration/manager.rs
@@ -239,8 +239,8 @@ impl RegionMigrationManager {
         // Safety: checked before.
         let region_route = table_route
             .region_route(region_id)
-            .context(error::UnexpectedTableRouteTypeSnafu { 
-                err_msg: "{self:?} is a non-physical TableRouteValue.", 
+            .context(error::UnexpectedTableRouteTypeSnafu {
+                err_msg: "{self:?} is a non-physical TableRouteValue.",
             })?
             .context(error::RegionRouteNotFoundSnafu { region_id })?;
 
diff --git a/src/meta-srv/src/procedure/region_migration/migration_start.rs b/src/meta-srv/src/procedure/region_migration/migration_start.rs
index 95f0ed79bd66..097ed0bca737 100644
--- a/src/meta-srv/src/procedure/region_migration/migration_start.rs
+++ b/src/meta-srv/src/procedure/region_migration/migration_start.rs
@@ -18,8 +18,7 @@ use common_meta::peer::Peer;
 use common_meta::rpc::router::RegionRoute;
 use common_procedure::Status;
 use serde::{Deserialize, Serialize};
-use snafu::OptionExt;
-use snafu::ResultExt;
+use snafu::{OptionExt, ResultExt};
 use store_api::storage::RegionId;
 
 use super::migration_end::RegionMigrationEnd;
@@ -86,8 +85,8 @@ impl RegionMigrationStart {
 
         let region_route = table_route
             .region_routes()
-            .context(error::UnexpectedTableRouteTypeSnafu { 
-                err_msg: "{self:?} is a non-physical TableRouteValue.", 
+            .context(error::UnexpectedTableRouteTypeSnafu {
+                err_msg: "{self:?} is a non-physical TableRouteValue.",
             })?
             .iter()
             .find(|route| route.region.id == region_id)
diff --git a/src/meta-srv/src/procedure/region_migration/test_util.rs b/src/meta-srv/src/procedure/region_migration/test_util.rs
index f3a0183f233f..8255504c9a7a 100644
--- a/src/meta-srv/src/procedure/region_migration/test_util.rs
+++ b/src/meta-srv/src/procedure/region_migration/test_util.rs
@@ -419,7 +419,7 @@ impl ProcedureMigrationTestSuite {
             .unwrap()
             .unwrap()
             .into_inner();
-        let region_routes = table_route.region_routes();
+        let region_routes = table_route.region_routes().unwrap();
 
         let expected_leader_id = self.context.persistent_ctx.to_peer.id;
         let removed_follower_id = self.context.persistent_ctx.from_peer.id;
diff --git a/src/meta-srv/src/procedure/region_migration/update_metadata/downgrade_leader_region.rs b/src/meta-srv/src/procedure/region_migration/update_metadata/downgrade_leader_region.rs
index cc67aa7ca8e9..818aadd9cda6 100644
--- a/src/meta-srv/src/procedure/region_migration/update_metadata/downgrade_leader_region.rs
+++ b/src/meta-srv/src/procedure/region_migration/update_metadata/downgrade_leader_region.rs
@@ -208,8 +208,8 @@ mod tests {
             .unwrap();
 
         // It should remain unchanged.
-        assert_eq!(latest_table_route.version(), 0);
-        assert!(!latest_table_route.region_routes()[0].is_leader_downgraded());
+        assert_eq!(latest_table_route.version().unwrap(), 0);
+        assert!(!latest_table_route.region_routes().unwrap()[0].is_leader_downgraded());
         assert!(ctx.volatile_ctx.table_route.is_none());
     }
 
@@ -249,7 +249,7 @@ mod tests {
             .unwrap()
             .unwrap();
 
-        assert!(latest_table_route.region_routes()[0].is_leader_downgraded());
+        assert!(latest_table_route.region_routes().unwrap()[0].is_leader_downgraded());
         assert!(ctx.volatile_ctx.table_route.is_none());
     }
 }
diff --git a/src/meta-srv/src/procedure/region_migration/update_metadata/rollback_downgraded_region.rs b/src/meta-srv/src/procedure/region_migration/update_metadata/rollback_downgraded_region.rs
index 7281737752a4..844188f2f1f9 100644
--- a/src/meta-srv/src/procedure/region_migration/update_metadata/rollback_downgraded_region.rs
+++ b/src/meta-srv/src/procedure/region_migration/update_metadata/rollback_downgraded_region.rs
@@ -170,7 +170,10 @@ mod tests {
             .unwrap()
             .unwrap()
             .into_inner();
-        assert_eq!(&expected_region_routes, table_route.region_routes());
+        assert_eq!(
+            &expected_region_routes,
+            table_route.region_routes().unwrap()
+        );
     }
 
     #[tokio::test]
@@ -231,6 +234,9 @@ mod tests {
             .unwrap()
             .unwrap()
             .into_inner();
-        assert_eq!(&expected_region_routes, table_route.region_routes());
+        assert_eq!(
+            &expected_region_routes,
+            table_route.region_routes().unwrap()
+        );
     }
 }
diff --git a/src/meta-srv/src/procedure/region_migration/update_metadata/upgrade_candidate_region.rs b/src/meta-srv/src/procedure/region_migration/update_metadata/upgrade_candidate_region.rs
index 2028e177a37c..001e79b84e5f 100644
--- a/src/meta-srv/src/procedure/region_migration/update_metadata/upgrade_candidate_region.rs
+++ b/src/meta-srv/src/procedure/region_migration/update_metadata/upgrade_candidate_region.rs
@@ -33,9 +33,10 @@ impl UpdateMetadata {
         let region_id = ctx.region_id();
         let table_route_value = ctx.get_table_route_value().await?.clone();
 
-        let mut region_routes = table_route_value.region_routes()
-            .context(error::UnexpectedTableRouteTypeSnafu { 
-                err_msg: "{self:?} is a non-physical TableRouteValue.", 
+        let mut region_routes = table_route_value
+            .region_routes()
+            .context(error::UnexpectedTableRouteTypeSnafu {
+                err_msg: "{self:?} is a non-physical TableRouteValue.",
             })?
             .clone();
         let region_route = region_routes
@@ -85,9 +86,10 @@ impl UpdateMetadata {
         let region_id = ctx.region_id();
         let table_route_value = ctx.get_table_route_value().await?.clone();
 
-        let region_routes = table_route_value.region_routes()
-            .context(error::UnexpectedTableRouteTypeSnafu { 
-                err_msg: "{self:?} is a non-physical TableRouteValue.", 
+        let region_routes = table_route_value
+            .region_routes()
+            .context(error::UnexpectedTableRouteTypeSnafu {
+                err_msg: "{self:?} is a non-physical TableRouteValue.",
             })?
             .clone();
         let region_route = region_routes
@@ -473,7 +475,9 @@ mod tests {
             .unwrap()
             .unwrap()
             .into_inner();
-        let region_routes = table_route.region_routes();
+        let region_routes = table_route
+            .region_routes()
+            .expect("expected physical table route");
 
         assert!(ctx.volatile_ctx.table_route.is_none());
         assert!(ctx.volatile_ctx.opening_region_guard.is_none());
diff --git a/src/meta-srv/src/selector/load_based.rs b/src/meta-srv/src/selector/load_based.rs
index 095e24a4e937..e1e99b6e032c 100644
--- a/src/meta-srv/src/selector/load_based.rs
+++ b/src/meta-srv/src/selector/load_based.rs
@@ -143,10 +143,14 @@ async fn get_leader_peer_ids(
         .context(error::TableMetadataManagerSnafu)
         .map(|route| {
             route.map_or_else(Vec::new, |route| {
-                find_leaders(route.region_routes().expect("expected physical table route"))
-                    .into_iter()
-                    .map(|peer| peer.id)
-                    .collect()
+                find_leaders(
+                    route
+                        .region_routes()
+                        .expect("expected physical table route"),
+                )
+                .into_iter()
+                .map(|peer| peer.id)
+                .collect()
             })
         })
 }
diff --git a/src/partition/src/manager.rs b/src/partition/src/manager.rs
index f3845fe449ff..81bbc8f9ed2f 100644
--- a/src/partition/src/manager.rs
+++ b/src/partition/src/manager.rs
@@ -75,10 +75,12 @@ impl PartitionRuleManager {
             .context(error::TableRouteManagerSnafu)?
             .context(error::FindTableRoutesSnafu { table_id })?
             .into_inner();
-        let region_routes = route.region_routes()
-            .context(error::UnexpectedTableRouteTypeSnafu { 
-                err_msg: "{self:?} is a non-physical TableRouteValue.", 
-            })?;
+        let region_routes =
+            route
+                .region_routes()
+                .context(error::UnexpectedTableRouteTypeSnafu {
+                    err_msg: "{self:?} is a non-physical TableRouteValue.",
+                })?;
         Ok(RegionRoutes(region_routes.clone()))
     }
 
@@ -90,10 +92,12 @@ impl PartitionRuleManager {
             .context(error::TableRouteManagerSnafu)?
             .context(error::FindTableRoutesSnafu { table_id })?
             .into_inner();
-        let region_routes = route.region_routes()
-            .context(error::UnexpectedTableRouteTypeSnafu { 
-                err_msg: "{self:?} is a non-physical TableRouteValue.", 
-            })?;
+        let region_routes =
+            route
+                .region_routes()
+                .context(error::UnexpectedTableRouteTypeSnafu {
+                    err_msg: "{self:?} is a non-physical TableRouteValue.",
+                })?;
 
         ensure!(
             !region_routes.is_empty(),
diff --git a/tests-integration/src/grpc.rs b/tests-integration/src/grpc.rs
index e9731cc336fa..24cd470c3905 100644
--- a/tests-integration/src/grpc.rs
+++ b/tests-integration/src/grpc.rs
@@ -521,11 +521,15 @@ CREATE TABLE {table_name} (
             .unwrap()
             .into_inner();
 
-        let region_to_dn_map = region_distribution(table_route_value.region_routes())
-            .unwrap()
-            .iter()
-            .map(|(k, v)| (v[0], *k))
-            .collect::<HashMap<u32, u64>>();
+        let region_to_dn_map = region_distribution(
+            table_route_value
+                .region_routes()
+                .expect("physical table route"),
+        )
+        .unwrap()
+        .iter()
+        .map(|(k, v)| (v[0], *k))
+        .collect::<HashMap<u32, u64>>();
         assert!(region_to_dn_map.len() <= instance.datanodes().len());
 
         let stmt = QueryLanguageParser::parse_sql(&format!(
diff --git a/tests-integration/src/instance.rs b/tests-integration/src/instance.rs
index 05253dc0a236..5b7ed080d9d9 100644
--- a/tests-integration/src/instance.rs
+++ b/tests-integration/src/instance.rs
@@ -216,11 +216,15 @@ mod tests {
             .unwrap()
             .into_inner();
 
-        let region_to_dn_map = region_distribution(table_route_value.region_routes())
-            .unwrap()
-            .iter()
-            .map(|(k, v)| (v[0], *k))
-            .collect::<HashMap<u32, u64>>();
+        let region_to_dn_map = region_distribution(
+            table_route_value
+                .region_routes()
+                .expect("region routes should be physical"),
+        )
+        .unwrap()
+        .iter()
+        .map(|(k, v)| (v[0], *k))
+        .collect::<HashMap<u32, u64>>();
         assert!(region_to_dn_map.len() <= instance.datanodes().len());
 
         let stmt = QueryLanguageParser::parse_sql("SELECT ts, host FROM demo ORDER BY ts").unwrap();