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Public Interfaces(optional)

TODO

Design Details(required)

1. Current dependence

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2. Decoupling 

• The distributed layer doesn't directly depend on faiss and should access the unified interface of knowhere.
• Each index implementation should be independent.
• Move Knowhere to a new project.
• We'd better decouple libfiu from key code path, which should only use within test code.

2. Support compile on  MAC 

• Distributed layer
  • Optimize compile phase make Query and segcore module depends on knowhere shared library.  
  • Reconstruct  BinarySearchBruteForce and FloatSearchBruteForce functions within the query module by knowhere supported brute force search index.
  • Support an alternative way to use libfiu which doesn't compile on Mac, or provide a optional to use libfiu when compile on Mac.
• Engine Layer(knowhere)
  • Support
  Knowhere support
  • a brute force search which is a kind of vector index and compiled on MAC & Ubuntu.
  Query and segcore module will depend on knowhere shared library.  
  • Upgrade faiss to the latest version, because current version can not be compiled on Mac.

Test Plan(required)

Rejected Alternatives(optional)

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