diff --git a/internal/core/src/CMakeLists.txt b/internal/core/src/CMakeLists.txt
index 632b723ea3..37d6e36569 100644
--- a/internal/core/src/CMakeLists.txt
+++ b/internal/core/src/CMakeLists.txt
@@ -18,14 +18,14 @@ include_directories(${MILVUS_ENGINE_SRC})
 include_directories(${MILVUS_THIRDPARTY_SRC})
 
 set(FOUND_OPENBLAS "unknown")
+add_subdirectory( pb )
 add_subdirectory( exceptions )
 add_subdirectory( utils )
 add_subdirectory( log )
-add_subdirectory( pb )
-add_subdirectory( segcore )
-add_subdirectory( query )
-add_subdirectory( common )
-add_subdirectory( indexbuilder )
 add_subdirectory( config )
-add_subdirectory( index )
+add_subdirectory( common )
 add_subdirectory( storage )
+add_subdirectory( index )
+add_subdirectory( query )
+add_subdirectory( segcore )
+add_subdirectory( indexbuilder )
diff --git a/internal/core/src/common/CMakeLists.txt b/internal/core/src/common/CMakeLists.txt
index af106c30e0..a54067f8ae 100644
--- a/internal/core/src/common/CMakeLists.txt
+++ b/internal/core/src/common/CMakeLists.txt
@@ -23,6 +23,7 @@ add_library(milvus_common SHARED ${COMMON_SRC})
 if ( MSYS )
     target_link_libraries(milvus_common
             milvus_config
+            milvus_utils
             milvus_log
             yaml-cpp
             boost_bitset_ext
@@ -32,6 +33,7 @@ if ( MSYS )
 else()
     target_link_libraries(milvus_common
             milvus_config
+            milvus_utils
             milvus_log
             yaml-cpp
             boost_bitset_ext
diff --git a/internal/core/src/config/CMakeLists.txt b/internal/core/src/config/CMakeLists.txt
index b3685939f4..60f019ef73 100644
--- a/internal/core/src/config/CMakeLists.txt
+++ b/internal/core/src/config/CMakeLists.txt
@@ -28,7 +28,6 @@ set(CONFIG_SRC
 add_library(milvus_config STATIC ${CONFIG_SRC})
 
 target_link_libraries(milvus_config
+        milvus_exceptions
         knowhere
-        milvus_proto
-        milvus_utils
         )
diff --git a/internal/core/src/exceptions/CMakeLists.txt b/internal/core/src/exceptions/CMakeLists.txt
index 5daeb4bb22..b92906ca8f 100644
--- a/internal/core/src/exceptions/CMakeLists.txt
+++ b/internal/core/src/exceptions/CMakeLists.txt
@@ -20,4 +20,4 @@ set(exceptions_files
 
 add_library(milvus_exceptions STATIC ${exceptions_files})
 
-target_link_libraries(milvus_exceptions PRIVATE milvus_proto)
+target_link_libraries(milvus_exceptions milvus_proto)
diff --git a/internal/core/src/index/Utils.cpp b/internal/core/src/index/Utils.cpp
index 36b3b11f55..b246e21c10 100644
--- a/internal/core/src/index/Utils.cpp
+++ b/internal/core/src/index/Utils.cpp
@@ -21,7 +21,6 @@
 
 #include "index/Utils.h"
 #include "index/Meta.h"
-#include "pb/index_cgo_msg.pb.h"
 #include <google/protobuf/text_format.h>
 #include "exceptions/EasyAssert.h"
 
diff --git a/internal/core/src/index/VectorMemIndex.cpp b/internal/core/src/index/VectorMemIndex.cpp
index c0ce073c0f..d507c2e58a 100644
--- a/internal/core/src/index/VectorMemIndex.cpp
+++ b/internal/core/src/index/VectorMemIndex.cpp
@@ -25,7 +25,6 @@
 #include "common/BitsetView.h"
 #include "knowhere/index/vector_index/ConfAdapterMgr.h"
 #include "knowhere/index/vector_index/adapter/VectorAdapter.h"
-#include "pb/index_cgo_msg.pb.h"
 
 namespace milvus::index {
 
diff --git a/internal/core/src/indexbuilder/ScalarIndexCreator.cpp b/internal/core/src/indexbuilder/ScalarIndexCreator.cpp
index d9bae8995e..21378e3c21 100644
--- a/internal/core/src/indexbuilder/ScalarIndexCreator.cpp
+++ b/internal/core/src/indexbuilder/ScalarIndexCreator.cpp
@@ -14,6 +14,7 @@
 #include "index/IndexInfo.h"
 #include "index/Meta.h"
 #include "index/Utils.h"
+#include "pb/index_cgo_msg.pb.h"
 
 #include <string>
 
@@ -22,6 +23,8 @@ namespace milvus::indexbuilder {
 ScalarIndexCreator::ScalarIndexCreator(DataType dtype, const char* type_params, const char* index_params)
     : dtype_(dtype) {
     // TODO: move parse-related logic to a common interface.
+    proto::indexcgo::TypeParams type_params_;
+    proto::indexcgo::IndexParams index_params_;
     milvus::index::ParseFromString(type_params_, std::string(type_params));
     milvus::index::ParseFromString(index_params_, std::string(index_params));
 
diff --git a/internal/core/src/indexbuilder/ScalarIndexCreator.h b/internal/core/src/indexbuilder/ScalarIndexCreator.h
index d66038ae61..7c07e2e174 100644
--- a/internal/core/src/indexbuilder/ScalarIndexCreator.h
+++ b/internal/core/src/indexbuilder/ScalarIndexCreator.h
@@ -12,7 +12,6 @@
 #pragma once
 
 #include "indexbuilder/IndexCreatorBase.h"
-#include "pb/index_cgo_msg.pb.h"
 #include <string>
 #include <memory>
 #include <common/CDataType.h>
@@ -40,8 +39,6 @@ class ScalarIndexCreator : public IndexCreatorBase {
 
  private:
     index::IndexBasePtr index_ = nullptr;
-    proto::indexcgo::TypeParams type_params_;
-    proto::indexcgo::IndexParams index_params_;
     Config config_;
     DataType dtype_;
 };
diff --git a/internal/core/src/indexbuilder/VecIndexCreator.cpp b/internal/core/src/indexbuilder/VecIndexCreator.cpp
index 0cede95a3e..f91e44c2cc 100644
--- a/internal/core/src/indexbuilder/VecIndexCreator.cpp
+++ b/internal/core/src/indexbuilder/VecIndexCreator.cpp
@@ -15,6 +15,7 @@
 #include "indexbuilder/VecIndexCreator.h"
 #include "index/Utils.h"
 #include "index/IndexFactory.h"
+#include "pb/index_cgo_msg.pb.h"
 
 #ifdef BUILD_DISK_ANN
 #include "storage/DiskFileManagerImpl.h"
@@ -26,6 +27,8 @@ VecIndexCreator::VecIndexCreator(DataType data_type,
                                  const char* serialized_type_params,
                                  const char* serialized_index_params)
     : data_type_(data_type) {
+    proto::indexcgo::TypeParams type_params_;
+    proto::indexcgo::IndexParams index_params_;
     milvus::index::ParseFromString(type_params_, std::string(serialized_type_params));
     milvus::index::ParseFromString(index_params_, std::string(serialized_index_params));
 
diff --git a/internal/core/src/indexbuilder/VecIndexCreator.h b/internal/core/src/indexbuilder/VecIndexCreator.h
index 14cfe30dc9..a7d47252f4 100644
--- a/internal/core/src/indexbuilder/VecIndexCreator.h
+++ b/internal/core/src/indexbuilder/VecIndexCreator.h
@@ -19,7 +19,6 @@
 #include "indexbuilder/IndexCreatorBase.h"
 #include "index/VectorIndex.h"
 #include "index/IndexInfo.h"
-#include "pb/index_cgo_msg.pb.h"
 
 namespace milvus::indexbuilder {
 
@@ -51,8 +50,6 @@ class VecIndexCreator : public IndexCreatorBase {
 
  private:
     milvus::index::IndexBasePtr index_ = nullptr;
-    proto::indexcgo::TypeParams type_params_;
-    proto::indexcgo::IndexParams index_params_;
     Config config_;
     DataType data_type_;
 };
diff --git a/internal/core/src/segcore/load_index_c.cpp b/internal/core/src/segcore/load_index_c.cpp
index 2833b62928..62a93eee1f 100644
--- a/internal/core/src/segcore/load_index_c.cpp
+++ b/internal/core/src/segcore/load_index_c.cpp
@@ -17,7 +17,6 @@
 #include "index/IndexFactory.h"
 #include "storage/Util.h"
 #include "segcore/load_index_c.h"
-#include "pb/index_cgo_msg.pb.h"
 
 CStatus
 NewLoadIndexInfo(CLoadIndexInfo* c_load_index_info) {
@@ -200,20 +199,12 @@ AppendIndexFilePath(CLoadIndexInfo c_load_index_info, const char* c_file_path) {
 }
 
 CStatus
-AppendIndexInfo(
-    CLoadIndexInfo c_load_index_info, int64_t index_id, int64_t build_id, int64_t version, const char* c_index_params) {
+AppendIndexInfo(CLoadIndexInfo c_load_index_info, int64_t index_id, int64_t build_id, int64_t version) {
     try {
         auto load_index_info = (milvus::index::LoadIndexInfo*)c_load_index_info;
         load_index_info->index_id = index_id;
         load_index_info->index_build_id = build_id;
         load_index_info->index_version = version;
-        milvus::proto::indexcgo::IndexParams index_params;
-        milvus::index::ParseFromString(index_params, c_index_params);
-
-        for (auto i = 0; i < index_params.params().size(); i++) {
-            auto& param = index_params.params(i);
-            load_index_info->index_params[param.key()] = param.value();
-        }
 
         auto status = CStatus();
         status.error_code = Success;
diff --git a/internal/core/src/segcore/load_index_c.h b/internal/core/src/segcore/load_index_c.h
index dbcab1ea25..e9f46ebd6a 100644
--- a/internal/core/src/segcore/load_index_c.h
+++ b/internal/core/src/segcore/load_index_c.h
@@ -41,8 +41,7 @@ AppendFieldInfo(CLoadIndexInfo c_load_index_info,
                 enum CDataType field_type);
 
 CStatus
-AppendIndexInfo(
-    CLoadIndexInfo c_load_index_info, int64_t index_id, int64_t build_id, int64_t version, const char* index_params);
+AppendIndexInfo(CLoadIndexInfo c_load_index_info, int64_t index_id, int64_t build_id, int64_t version);
 
 CStatus
 AppendIndex(CLoadIndexInfo c_load_index_info, CBinarySet c_binary_set);
diff --git a/internal/core/src/utils/CMakeLists.txt b/internal/core/src/utils/CMakeLists.txt
index 08a7ba6716..83934e00f0 100644
--- a/internal/core/src/utils/CMakeLists.txt
+++ b/internal/core/src/utils/CMakeLists.txt
@@ -15,4 +15,3 @@ aux_source_directory( ${MILVUS_ENGINE_SRC}/utils UTILS_FILES )
 
 add_library( milvus_utils STATIC ${UTILS_FILES} )
 
-target_link_libraries( milvus_utils PRIVATE milvus_exceptions)
diff --git a/internal/querynode/load_index_info.go b/internal/querynode/load_index_info.go
index 94e9ad9ae3..f3306faee5 100644
--- a/internal/querynode/load_index_info.go
+++ b/internal/querynode/load_index_info.go
@@ -28,11 +28,7 @@ import (
 	"path/filepath"
 	"unsafe"
 
-	"github.com/golang/protobuf/proto"
-
-	"github.com/milvus-io/milvus/api/commonpb"
 	"github.com/milvus-io/milvus/api/schemapb"
-	"github.com/milvus-io/milvus/internal/proto/indexcgopb"
 	"github.com/milvus-io/milvus/internal/proto/querypb"
 )
 
@@ -65,11 +61,18 @@ func (li *LoadIndexInfo) appendLoadIndexInfo(bytesIndex [][]byte, indexInfo *que
 		return err
 	}
 
-	err = li.appendIndexInfo(indexInfo.IndexID, indexInfo.BuildID, indexInfo.IndexVersion, indexInfo.IndexParams)
+	err = li.appendIndexInfo(indexInfo.IndexID, indexInfo.BuildID, indexInfo.IndexVersion)
 	if err != nil {
 		return err
 	}
 
+	for _, param := range indexInfo.IndexParams {
+		err = li.appendIndexParam(param.Key, param.Value)
+		if err != nil {
+			return err
+		}
+	}
+
 	err = li.appendIndexData(bytesIndex, indexPaths)
 	return err
 }
@@ -84,20 +87,12 @@ func (li *LoadIndexInfo) appendIndexParam(indexKey string, indexValue string) er
 	return HandleCStatus(&status, "AppendIndexParam failed")
 }
 
-func (li *LoadIndexInfo) appendIndexInfo(indexID int64, buildID int64, indexVersion int64, indexParams []*commonpb.KeyValuePair) error {
-	protoIndexParams := &indexcgopb.IndexParams{
-		Params: indexParams,
-	}
-
-	indexParamsStr := proto.MarshalTextString(protoIndexParams)
-	indexParamsPointer := C.CString(indexParamsStr)
-	defer C.free(unsafe.Pointer(indexParamsPointer))
-
+func (li *LoadIndexInfo) appendIndexInfo(indexID int64, buildID int64, indexVersion int64) error {
 	cIndexID := C.int64_t(indexID)
 	cBuildID := C.int64_t(buildID)
 	cIndexVersion := C.int64_t(indexVersion)
 
-	status := C.AppendIndexInfo(li.cLoadIndexInfo, cIndexID, cBuildID, cIndexVersion, indexParamsPointer)
+	status := C.AppendIndexInfo(li.cLoadIndexInfo, cIndexID, cBuildID, cIndexVersion)
 	return HandleCStatus(&status, "AppendIndexInfo failed")
 }