Cosine similarity

[x-ultimate]

Does milvus-sdk search support Cosine similarity ？

[yhmo]

In milvus, inner product(MetricType.IP) metric is for cosine similarity.

SearchParam searchParam = SearchParam.newBuilder()
                .withCollectionName(randomCollectionName)
                .withMetricType(MetricType.IP)
                ......

By IP metric, the search() returns results with the distance arranged from 1.0 to 0.0, if distance = 1.0, which means the two vectors are equal.