在Milvus上构建向量索引

index_params = {
  "metric_type":"L2",
  "index_type":"IVF_FLAT",
  "params":{"nlist":1024}
}
 

const index_params = {
  metric_type: "L2",
  index_type: "IVF_FLAT",
  params: JSON.stringify({ nlist: 1024 }),
};
 

idx, err := entity.NewIndexIvfFlat(   // NewIndex func
    entity.L2,                        // metricType
    1024,                             // ConstructParams
)
if err != nil {
  log.Fatal("fail to create ivf flat index parameter:", err.Error())
}
 

final IndexType INDEX_TYPE = IndexType.IVF_FLAT;   // IndexType
final String INDEX_PARAM = "{"nlist":1024}";     // ExtraParam
 

create index
 
Collection name (book): book
 
The name of the field to create an index for (book_intro): book_intro
 
Index type (FLAT, IVF_FLAT, IVF_SQ8, IVF_PQ, RNSG, HNSW, ANNOY): IVF_FLAT
 
Index metric type (L2, IP, HAMMING, TANIMOTO): L2
 
Index params nlist: 1024
 
Timeout []:
 

curl -X 'POST' 
  'http://localhost:9091/api/v1/index' 
  -H 'accept: application/json' 
  -H 'Content-Type: application/json' 
  -d '{
    "collection_name": "book",
    "field_name": "book_intro",
    "extra_params":[
      {"key": "metric_type", "value": "L2"},
      {"key": "index_type", "value": "IVF_FLAT"},
      {"key": "params", "value": "{"nlist":1024}"}
    ]
  }'
 

from pymilvus import Collection, utility
# Get an existing collection.
collection = Collection("book")      
collection.create_index(
  field_name="book_intro", 
  index_params=index_params
)
 
utility.index_building_progress("book")
# Output: {'total_rows': 0, 'indexed_rows': 0}
 

await milvusClient.createIndex({
  collection_name: "book",
  field_name: "book_intro",
  extra_params: index_params,
});
 

err := milvusClient.CreateIndex(
  context.Background(),        // ctx
  "book",                      // CollectionName
  "book_intro",                // fieldName
  idx,                         // entity.Index
  false,                       // async
)
if err != nil {
  log.Fatal("fail to create index:", err.Error())
}
 

milvusClient.createIndex(
  CreateIndexParam.newBuilder()
    .withCollectionName("book")
    .withFieldName("book_intro")
    .withIndexType(INDEX_TYPE)
    .withMetricType(MetricType.L2)
    .withExtraParam(INDEX_PARAM)
    .withSyncMode(Boolean.FALSE)
    .build()
);
 

# Follow the previous step.
 

# Follow the previous step.