diff --git a/src/observer/common/type/vector_type.h b/src/observer/common/type/vector_type.h
index 40ff298bc..9e9f81509 100644
--- a/src/observer/common/type/vector_type.h
+++ b/src/observer/common/type/vector_type.h
@@ -22,11 +22,11 @@ class VectorType : public DataType
   VectorType() : DataType(AttrType::VECTORS) {}
   virtual ~VectorType() {}
 
-  int compare(const Value &left, const Value &right) const override {return INT32_MAX; }
+  int compare(const Value &left, const Value &right) const override { return INT32_MAX; }
 
-  RC add(const Value &left, const Value &right, Value &result) const override {return RC::UNIMPLEMENTED; }
-  RC subtract(const Value &left, const Value &right, Value &result) const override {return RC::UNIMPLEMENTED; }
-  RC multiply(const Value &left, const Value &right, Value &result) const override {return RC::UNIMPLEMENTED; }
+  RC add(const Value &left, const Value &right, Value &result) const override { return RC::UNIMPLEMENTED; }
+  RC subtract(const Value &left, const Value &right, Value &result) const override { return RC::UNIMPLEMENTED; }
+  RC multiply(const Value &left, const Value &right, Value &result) const override { return RC::UNIMPLEMENTED; }
 
-  RC to_string(const Value &val, string &result) const override {return RC::UNIMPLEMENTED; }
+  RC to_string(const Value &val, string &result) const override { return RC::UNIMPLEMENTED; }
 };
\ No newline at end of file
diff --git a/src/observer/storage/index/index.h b/src/observer/storage/index/index.h
index 303c5bb84..790c34cd4 100644
--- a/src/observer/storage/index/index.h
+++ b/src/observer/storage/index/index.h
@@ -40,10 +40,16 @@ class Index
   Index()          = default;
   virtual ~Index() = default;
 
-  virtual RC create(Table *table, const char *file_name, const IndexMeta &index_meta, const FieldMeta &field_meta) {return RC::UNSUPPORTED; }
-  virtual RC open(Table *table, const char *file_name, const IndexMeta &index_meta, const FieldMeta &field_meta) {return RC::UNSUPPORTED; }
-
-  virtual bool is_vector_index() {return false; }
+  virtual RC create(Table *table, const char *file_name, const IndexMeta &index_meta, const FieldMeta &field_meta)
+  {
+    return RC::UNSUPPORTED;
+  }
+  virtual RC open(Table *table, const char *file_name, const IndexMeta &index_meta, const FieldMeta &field_meta)
+  {
+    return RC::UNSUPPORTED;
+  }
+
+  virtual bool is_vector_index() { return false; }
 
   const IndexMeta &index_meta() const { return index_meta_; }
 
diff --git a/src/observer/storage/index/ivfflat_index.h b/src/observer/storage/index/ivfflat_index.h
index 753d78646..cb09f47ad 100644
--- a/src/observer/storage/index/ivfflat_index.h
+++ b/src/observer/storage/index/ivfflat_index.h
@@ -19,7 +19,7 @@ See the Mulan PSL v2 for more details. */
 class IvfflatIndex : public Index
 {
 public:
-  IvfflatIndex() {};
+  IvfflatIndex(){};
   virtual ~IvfflatIndex() noexcept {};
 
   RC create(Table *table, const char *file_name, const IndexMeta &index_meta, const FieldMeta &field_meta)
@@ -28,11 +28,11 @@ class IvfflatIndex : public Index
   };
   RC open(Table *table, const char *file_name, const IndexMeta &index_meta, const FieldMeta &field_meta)
   {
-    
+
     return RC::UNIMPLEMENTED;
   };
 
-  vector<RID> ann_search(const vector<float> &base_vector, size_t limit) {return vector<RID>(); }
+  vector<RID> ann_search(const vector<float> &base_vector, size_t limit) { return vector<RID>(); }
 
   RC close() { return RC::UNIMPLEMENTED; }
 
@@ -42,8 +42,8 @@ class IvfflatIndex : public Index
   RC sync() override { return RC::UNIMPLEMENTED; };
 
 private:
-  bool                    inited_ = false;
-  Table *                 table_  = nullptr;
-  int                      lists_ = 1;
-  int                     probes_ = 1;
+  bool   inited_ = false;
+  Table *table_  = nullptr;
+  int    lists_  = 1;
+  int    probes_ = 1;
 };