TiKV doesn't return RowsData when RowsData length is 0, so we sliced a nil data when data length is zero. This can only be reproduced on TiKV, so no unit test is added.
TiKV doesn't return RowsData when RowsData length is 0, so we sliced a nil data when data length is zero. This can only be reproduced on TiKV, so no unit test is added.