* Offset for IVFFlat
Signed-off-by: Nsahuang <xiaohai.xu@zilliz.com>

* modify segment reader
Signed-off-by: Nshengjun.li <shengjun.li@zilliz.com>

* add index_flat_nm
Signed-off-by: Nshengjun.li <shengjun.li@zilliz.com>

* fix compilation issue
Signed-off-by: Nsahuang <xiaohai.xu@zilliz.com>

* fix segment reader
Signed-off-by: Nshengjun.li <shengjun.li@zilliz.com>

* Fix issue
Signed-off-by: Nsahuang <xiaohai.xu@zilliz.com>

* fix hnsw_nm
Signed-off-by: Nshengjun.li <shengjun.li@zilliz.com>

* fix nsg
Signed-off-by: Nshengjun.li <shengjun.li@zilliz.com>

* fix bug
Signed-off-by: Nsahuang <xiaohai.xu@zilliz.com>

* NSG
Signed-off-by: Nsahuang <xiaohai.xu@zilliz.com>

* Fix NSG issue
Signed-off-by: Nsahuang <xiaohai.xu@zilliz.com>

* client test
Signed-off-by: Nsahuang <xiaohai.xu@zilliz.com>

* fix index size
Signed-off-by: Nshengjun.li <shengjun.li@zilliz.com>

* remove unnecessary things
Signed-off-by: Nsahuang <xiaohai.xu@zilliz.com>

* add changelog
Signed-off-by: Nsahuang <xiaohai.xu@zilliz.com>

* Fix clang format
Signed-off-by: Nsahuang <xiaohai.xu@zilliz.com>

* add changelog
Signed-off-by: Nsahuang <xiaohai.xu@zilliz.com>

* Fix compile error
Signed-off-by: Nsahuang <xiaohai.xu@zilliz.com>

* Fix compile error
Signed-off-by: Nsahuang <xiaohai.xu@zilliz.com>

* Fix compile error
Signed-off-by: Nsahuang <xiaohai.xu@zilliz.com>

* Fix compile error
Signed-off-by: Nsahuang <xiaohai.xu@zilliz.com>

* Fix issues
Signed-off-by: Nsahuang <xiaohai.xu@zilliz.com>

* Change data to shared_ptr
Signed-off-by: Nsahuang <xiaohai.xu@zilliz.com>

* fix hnsw and nsg ut
Signed-off-by: Nsahuang <xiaohai.xu@zilliz.com>

* clang-format
Signed-off-by: Nsahuang <xiaohai.xu@zilliz.com>

* not to insert cache immediately
Signed-off-by: Nshengjun.li <shengjun.li@zilliz.com>

* Fix macro issue
Signed-off-by: Nsahuang <xiaohai.xu@zilliz.com>
Co-authored-by: Nshengjun.li <shengjun.li@zilliz.com>