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Compatibility, Deprecation, and Migration Plan(optional)

There This is a new functionality, there is no compatibility issue.

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1. Add new unittest
2. Add benchmark to test range search runtime and recall
3. Add benchmark to test using range search datasetQPS

There is no public dataset for range search. I have created range search data set based on sift1M and glove200.

You can find them in NAS:

1. test/milvus/ann_hdf5/binary/sift-

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1. 4096-

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1. hamming-range.hdf5
   1. base dataset and query dataset are identical with sift1m
   2. unified radius = 
2. test/milvus/ann_hdf5/sift-128-euclidean-range

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1. .hdf5

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   1. 1. base dataset and query dataset are identical with sift1m
      2. unified radius = 186.0
      3. result length for each nq is different
   2. test/milvus/ann_hdf5/

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   1. sift-

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   1. 128-

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   1. euclidean-range-multi.hdf5
      1. base dataset and query dataset are identical with sift1m
      2. each nq has different radius setting
      3. result length for each nq is 100
   2. test/milvus/ann_hdf5/

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   1. glove-

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   1. 200-

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   1. angular-range.hdf5
      1. base dataset and query dataset are identical with glove200
      2. unified radius = 
      3. result length for each nq is different

   
   

   Segcore

   1. Add new range search unittest

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