milvus-0.5.3

• Double the transmission speed of search results to the client application through the following updates to gRPC:

  • Optimize messages.
  • Change the API of generated code.
  • Remove compression.

• Python SDK

  • Divide the storage of search result ids and distances into separate arrays, which reduces the API response time.
  • Add a new option to retrieve a specific target vector in search results: id = results.id_array[i][j], distance = results.distance_array[i][j].
  • Add a new option for looping over arrays, which takes much less time if nq and topk is large.

    >> for id_list, dis_list in zip(results.id_array, results.distance_array):
    >>     for id, dis in zip(id_list, dis_list):
    >>        print("id={}, distance={}".format(id, dis))
    

• Java SDK

  • Add keepalive and idleTimeout settings when connecting to Milvus server.
  • Now users can retrieve search result ids and distances separately through getResultIdsList and getResultDistancesList with better performance, or they can retrieve them together as a list of QueryResult objects through getQueryResultsList.

• C++ SDK

  • Now C++ SDK uses shared library.
  • Add README file.

• Enhance the search performance of IVF_SQ8H.