diff --git a/internal/types/types.go b/internal/types/types.go
index 698a171aeea9c47962e8c3835bf86b64434dacff..76213326ada7927afe4b6ef5ed19ca4d598cc717 100644
--- a/internal/types/types.go
+++ b/internal/types/types.go
@@ -195,40 +195,6 @@ type Proxy interface {
 	//
 	// error is returned only when some communication issue occurs.
 	ReleaseDQLMessageStream(ctx context.Context, in *proxypb.ReleaseDQLMessageStreamRequest) (*commonpb.Status, error)
-
-	//TODO: move to milvus service
-	/*
-		CreateCollection(ctx context.Context, request *milvuspb.CreateCollectionRequest) (*commonpb.Status, error)
-		DropCollection(ctx context.Context, request *milvuspb.DropCollectionRequest) (*commonpb.Status, error)
-		HasCollection(ctx context.Context, request *milvuspb.HasCollectionRequest) (*milvuspb.BoolResponse, error)
-		LoadCollection(ctx context.Context, request *milvuspb.LoadCollectionRequest) (*commonpb.Status, error)
-		ReleaseCollection(ctx context.Context, request *milvuspb.ReleaseCollectionRequest) (*commonpb.Status, error)
-		DescribeCollection(ctx context.Context, request *milvuspb.DescribeCollectionRequest) (*milvuspb.DescribeCollectionResponse, error)
-		GetCollectionStatistics(ctx context.Context, request *milvuspb.GetCollectionStatisticsRequest) (*milvuspb.GetCollectionStatisticsResponse, error)
-		ShowCollections(ctx context.Context, request *milvuspb.ShowCollectionsRequest) (*milvuspb.ShowCollectionsResponse, error)
-
-		CreatePartition(ctx context.Context, request *milvuspb.CreatePartitionRequest) (*commonpb.Status, error)
-		DropPartition(ctx context.Context, request *milvuspb.DropPartitionRequest) (*commonpb.Status, error)
-		HasPartition(ctx context.Context, request *milvuspb.HasPartitionRequest) (*milvuspb.BoolResponse, error)
-		LoadPartitions(ctx context.Context, request *milvuspb.LoadPartitionsRequest) (*commonpb.Status, error)
-		ReleasePartitions(ctx context.Context, request *milvuspb.ReleasePartitionsRequest) (*commonpb.Status, error)
-		GetPartitionStatistics(ctx context.Context, request *milvuspb.GetPartitionStatsRequest) (*milvuspb.GetPartitionStatisticsResponse, error)
-		ShowPartitions(ctx context.Context, request *milvuspb.ShowPartitionsRequest) (*milvuspb.ShowPartitionsResponse, error)
-
-		CreateIndex(ctx context.Context, request *milvuspb.CreateIndexRequest) (*commonpb.Status, error)
-		DescribeIndex(ctx context.Context, request *milvuspb.DescribeIndexRequest) (*milvuspb.DescribeIndexResponse, error)
-		GetIndexState(ctx context.Context, request *milvuspb.GetIndexStateRequest) (*milvuspb.GetIndexStateResponse, error)
-		DropIndex(ctx context.Context, request *milvuspb.DropIndexRequest) (*commonpb.Status, error)
-
-		Insert(ctx context.Context, request *milvuspb.InsertRequest) (*milvuspb.InsertResponse, error)
-		Search(ctx context.Context, request *milvuspb.SearchRequest) (*milvuspb.SearchResults, error)
-		Flush(ctx context.Context, request *milvuspb.FlushRequest) (*commonpb.Status, error)
-
-		GetDdChannel(ctx context.Context, request *commonpb.Empty) (*milvuspb.StringResponse, error)
-
-		GetQuerySegmentInfo(ctx context.Context, req *milvuspb.GetQuerySegmentInfoRequest) (*milvuspb.GetQuerySegmentInfoResponse, error)
-		GetPersistentSegmentInfo(ctx context.Context, req *milvuspb.GetPersistentSegmentInfoRequest) (*milvuspb.GetPersistentSegmentInfoResponse, error)
-	*/
 }
 
 type QueryNode interface {