[Bug]: The radius and range_filter parameters of searh in the Java SDK are not effective

[yongxin3344520]

Is there an existing issue for this?

• I have searched the existing issues

Environment

- Milvus version: v2.5.0-beta/v2.5.0-beta-gpu
- standalone  
- SDK version: java-2.5.0
- win10

Current Behavior

this is my part code :

Map<String, Object> stringObjectMap = searchParams(indexType) ;

    ((Map<String, Object>)stringObjectMap.get("params")).put("radius",  0.8);
    ((Map<String, Object>)stringObjectMap.get("params")).put("range_filter", 1.2f);

    SearchReq searchReq = SearchReq.builder()
            .data(data)
            .annsField(VECTOR_FIELD)
            .searchParams(stringObjectMap )
            .collectionName(collectionName)
            .partitionNames(selectParts.isEmpty() ? parts : new ArrayList<>(selectParts))
            .limit(Math.min(500, topK))
            .topK(Math.min(500, topK))
            .filter(ids.isEmpty() ? "" : (" id in [" + ids.toString() + "]"))
            .build();

    SearchResp searchResp = null ;

    MilvusClientV2 client = pool.getClient(key);

    // load
    client.loadCollection(LoadCollectionReq.builder().collectionName(collectionName).build());

    try {
        searchResp = client.search(searchReq);
    }catch (Exception e){
        log.error("", e);
    }finally {
        pool.returnClient(key, client);
    }

---

private Map<String, Object> searchParams(IndexParam.IndexType indexType){
Map<String, Object> objectMap = new HashMap<>();

    switch (indexType){
        case IndexParam.IndexType.IVF_PQ:
            objectMap.put("metric_type", "IP");
            Map<String, Object> param0 = new HashMap<>();
            param0.put("nprobe", 8);
            objectMap.put("params", param0);
            break;
        case IndexParam.IndexType.IVF_FLAT:
            objectMap.put("metric_type", "IP");
            Map<String, Object> param1 = new HashMap<>();
            param1.put("nprobe", 8);
            objectMap.put("params", param1);
            break;
        case IndexParam.IndexType.IVF_SQ8:
            objectMap.put("metric_type", "IP");
            Map<String, Object> param2 = new HashMap<>();
            param2.put("nprobe", 8);
            objectMap.put("params", param2);
            break;

        case IndexParam.IndexType.GPU_CAGRA:
            objectMap.put("metric_type", "IP");
            Map<String, Object> param3 = new HashMap<>();
            // param3.put("itopk_size", 128);
            objectMap.put("params", param3);
            break;

        case IndexParam.IndexType.GPU_IVF_FLAT:
            objectMap.put("metric_type", "IP");
            Map<String, Object> param4 = new HashMap<>();
            param4.put("nprobe", 8);
            objectMap.put("params", param4);
            break;

        case IndexParam.IndexType.GPU_IVF_PQ:
            objectMap.put("metric_type", "IP");
            objectMap.put("index_type", "GPU_IVF_PQ");
            Map<String, Object> param5 = new HashMap<>();
            param5.put("nprobe", 8);
            objectMap.put("params", param5);
            break;

        default:
            throw new RuntimeException("ERROR INDEX TYPE:"+indexType);
    }
    return objectMap;
}

---

Expected Behavior

The radius and range_filter parameters of sealh in the Java SDK are not effective, Those with similarity below the threshold were also queried.
Using Python is normal

Steps To Reproduce

No response

Milvus Log

No response

Anything else?

No response

[xiaofan-luan]

I don't think GPU index support range search.

@liliu-z can you confirm?

[yongxin3344520]

These two parameters work in both GPU and CPU versions using Python, but do not work in Java CPU and GPU versions

[xiaofan-luan]

@yanliang567
could you help on verify it?

[yanliang567]

/assign @yongpengli-z
please help
/unassign

[yongpengli-z]

This may be a problem，help confirm whether the method of passing parameters is correct @yhmo,Java-sdk search returns results, but python does not.

python 👇
range search:

default_search_params = {"metric_type": "IP", "params": {"nprobe": 10, "radius":0.8, "range_filter": 1.2}}
res = c.search(vectors[:nq], "fieldFloatVector", default_search_params, limit, "fieldInt64 >= 0")
res
data: ['[]']

[yhmo]

In Java SDK, users no need to set "params", just put all parameters in the first level of searchParams.

Map<String, Object> params = new HashMap<>();
params.put("radius", 0.8);

SearchResp searchR = client.search(SearchReq.builder()
        .collectionName(collectionName)
        .data(Collections.singletonList(new FloatVec(vector)))
        .topK(10)
        .searchParams(params)
        .build());

[yongpengli-z]

@yongxin3344520