diff --git a/core/src/dog_segment/segment_c.cpp b/core/src/dog_segment/segment_c.cpp
index 2ebab0cf0f..d362bd5552 100644
--- a/core/src/dog_segment/segment_c.cpp
+++ b/core/src/dog_segment/segment_c.cpp
@@ -11,8 +11,6 @@ NewSegment(CPartition partition, unsigned long segment_id) {
 
   auto segment = milvus::dog_segment::CreateSegment(p->get_schema());
 
-  segment->set_segment_id(segment_id);
-
   // TODO: delete print
   std::cout << "create segment " << segment_id << std::endl;
   return (void*)segment.release();
@@ -24,7 +22,7 @@ DeleteSegment(CSegmentBase segment) {
   auto s = (milvus::dog_segment::SegmentBase*)segment;
 
   // TODO: delete print
-  std::cout << "delete segment " << s->get_segment_id() << std::endl;
+  std::cout << "delete segment " << std::endl;
   delete s;
 }
 
@@ -32,12 +30,14 @@ DeleteSegment(CSegmentBase segment) {
 
 int
 Insert(CSegmentBase c_segment,
-           signed long int size,
-           const unsigned long* primary_keys,
-           const unsigned long* timestamps,
-           void* raw_data,
-           int sizeof_per_row,
-           signed long int count) {
+       signed long int size,
+       const long* primary_keys,
+       const unsigned long* timestamps,
+       void* raw_data,
+       int sizeof_per_row,
+       signed long int count,
+       unsigned long timestamp_min,
+       unsigned long timestamp_max) {
   auto segment = (milvus::dog_segment::SegmentBase*)c_segment;
   milvus::dog_segment::DogDataChunk dataChunk{};
 
@@ -45,19 +45,21 @@ Insert(CSegmentBase c_segment,
   dataChunk.sizeof_per_row = sizeof_per_row;
   dataChunk.count = count;
 
-  auto res = segment->Insert(size, primary_keys, timestamps, dataChunk);
+  auto res = segment->Insert(size, primary_keys, timestamps, dataChunk, std::make_pair(timestamp_min, timestamp_max));
   return res.code();
 }
 
 
 int
 Delete(CSegmentBase c_segment,
-           long size,
-           const unsigned long* primary_keys,
-           const unsigned long* timestamps) {
+       long size,
+       const long* primary_keys,
+       const unsigned long* timestamps,
+       unsigned long timestamp_min,
+       unsigned long timestamp_max) {
   auto segment = (milvus::dog_segment::SegmentBase*)c_segment;
 
-  auto res = segment->Delete(size, primary_keys, timestamps);
+  auto res = segment->Delete(size, primary_keys, timestamps, std::make_pair(timestamp_min, timestamp_max));
   return res.code();
 }
 
@@ -114,46 +116,3 @@ GetDeletedCount(CSegmentBase c_segment) {
   auto deleted_count = segment->get_deleted_count();
   return deleted_count;
 }
-
-
-unsigned long
-GetTimeBegin(CSegmentBase c_segment) {
-  auto segment = (milvus::dog_segment::SegmentBase*)c_segment;
-  auto time_begin = segment->get_time_begin();
-  return time_begin;
-}
-
-
-void
-SetTimeBegin(CSegmentBase c_segment, unsigned long time_begin) {
-  auto segment = (milvus::dog_segment::SegmentBase*)c_segment;
-  segment->set_time_begin(time_begin);
-}
-
-
-unsigned long
-GetTimeEnd(CSegmentBase c_segment) {
-  auto segment = (milvus::dog_segment::SegmentBase*)c_segment;
-  auto time_end = segment->get_time_end();
-  return time_end;
-}
-
-void
-SetTimeEnd(CSegmentBase c_segment, unsigned long time_end) {
-  auto segment = (milvus::dog_segment::SegmentBase*)c_segment;
-  segment->set_time_end(time_end);
-}
-
-
-unsigned long
-GetSegmentId(CSegmentBase c_segment) {
-  auto segment = (milvus::dog_segment::SegmentBase*)c_segment;
-  auto segment_id = segment->get_segment_id();
-  return segment_id;
-}
-
-void
-SetSegmentId(CSegmentBase c_segment, unsigned long segment_id) {
-  auto segment = (milvus::dog_segment::SegmentBase*)c_segment;
-  segment->set_segment_id(segment_id);
-}
diff --git a/core/src/dog_segment/segment_c.h b/core/src/dog_segment/segment_c.h
index 3dcee14ae6..2b24ac3001 100644
--- a/core/src/dog_segment/segment_c.h
+++ b/core/src/dog_segment/segment_c.h
@@ -17,18 +17,22 @@ DeleteSegment(CSegmentBase segment);
 
 int
 Insert(CSegmentBase c_segment,
-           signed long int size,
-           const unsigned long* primary_keys,
-           const unsigned long* timestamps,
-           void* raw_data,
-           int sizeof_per_row,
-           signed long int count);
+       signed long int size,
+       const long* primary_keys,
+       const unsigned long* timestamps,
+       void* raw_data,
+       int sizeof_per_row,
+       signed long int count,
+       unsigned long timestamp_min,
+       unsigned long timestamp_max);
 
 int
 Delete(CSegmentBase c_segment,
-           long size,
-           const unsigned long* primary_keys,
-           const unsigned long* timestamps);
+       long size,
+       const long* primary_keys,
+       const unsigned long* timestamps,
+       unsigned long timestamp_min,
+       unsigned long timestamp_max);
 
 int
 Search(CSegmentBase c_segment,
@@ -53,24 +57,6 @@ GetRowCount(CSegmentBase c_segment);
 long int
 GetDeletedCount(CSegmentBase c_segment);
 
-unsigned long
-GetTimeBegin(CSegmentBase c_segment);
-
-void
-SetTimeBegin(CSegmentBase c_segment, unsigned long time_begin);
-
-unsigned long
-GetTimeEnd(CSegmentBase c_segment);
-
-void
-SetTimeEnd(CSegmentBase c_segment, unsigned long time_end);
-
-unsigned long
-GetSegmentId(CSegmentBase c_segment);
-
-void
-SetSegmentId(CSegmentBase c_segment, unsigned long segment_id);
-
 #ifdef __cplusplus
 }
 #endif
\ No newline at end of file
diff --git a/reader/segment.go b/reader/segment.go
index 21c6fa1daa..d5704e3c1b 100644
--- a/reader/segment.go
+++ b/reader/segment.go
@@ -86,8 +86,8 @@ func (s *Segment) SegmentInsert(entityIds *[]int64, timestamps *[]uint64, record
 	           void* raw_data,
 	           int sizeof_per_row,
 	           signed long int count,
-			   const unsigned long timestamp_min,
-			   const unsigned long timestamp_max);
+			   unsigned long timestamp_min,
+			   unsigned long timestamp_max);
 	*/
 	// Blobs to one big blob
 	var rowData []byte
@@ -127,7 +127,9 @@ func (s *Segment) SegmentDelete(entityIds *[]int64, timestamps *[]uint64, timest
 	Delete(CSegmentBase c_segment,
 	           long size,
 	           const unsigned long* primary_keys,
-	           const unsigned long* timestamps);
+	           const unsigned long* timestamps,
+			   unsigned long timestamp_min,
+			   unsigned long timestamp_max);
 	*/
 	size := len(*entityIds)