IndexParam

This operation prepares index parameters to build indexes for a specific collection.

io.milvus.v2.common.IndexParam

Request Syntax

IndexParam.builder()
    .fieldName(String fieldName)
    .indexName(String indexName)
    .indexType(IndexParam.IndexType indexType)
    .metricType(IndexParam.MetricType metricType)
    .extraParams(Map<String, Object> extraParams)
    .build();

BUILDER METHODS:

• fieldName(String fieldName)

  The name of the target field to apply this IndexParam object applies.

• indexName(String indexName)

  The name of the index field generated after this IndexParam object has been applied.

• indexType(IndexParam.IndexType indexType)

  The name of the algorithm used to arrange data in the specific field. For applicable algorithms, refer to In-memory Index and On-disk Index.

• metricType(IndexParam.MetricType metricType)

  The algorithm that is used to measure similarity between vectors. Possible values: IP, L2, COSINE, HAMMING, JACCARD, BM25 (used only for full text search). For more information, refer to Metric Types.

  This is available only when the specified field is a vector field.

• extraParams(Map<String, Object> extraParams)

  Extra index parameters. For details, refer to In-memory Index, On-disk Index, and GPU index.

RETURN TYPE:

IndexParam

RETURNS:

An IndexParam object.

EXCEPTIONS:

• MilvusClientExceptions

  This exception will be raised when any error occurs during this operation.

Example

// define index param for field "vector"
IndexParam indexParam = IndexParam.builder()
        .metricType(IndexParam.MetricType.L2)
        .indexType(IndexParam.IndexType.AUTOINDEX)
        .fieldName("vector")
        .indexName("idx")
        .build();