alterCollectionProperties()

This operation modifies the properties of a specified collection.

public Void alterCollectionProperties(AlterCollectionPropertiesReq request)

Request Syntax

alterCollectionProperties(AlterCollectionPropertiesReq.builder()
    .databaseName(String databaseName)
    .collectionName(String collectionName)
    .properties(Map<String, String> properties)
    .build()
)

BUILDER METHODS:

• databaseName(String databaseName)

  The name of the database that holds the target collection.

• collectionName(String collectionName)

  The name of the target collection.

• properties(Map<String, String> properties)

  The properties to modify and their expected values. Note that the property values should be strings. Available database properties are as follows:

  • collection.ttl.seconds -

    The time-to-live (TTL) of a collection in seconds.

  • mmap.enabled -

    Whether to enable mmap for the raw data and indexes of all fields in the collection.

RETURNS:

void

EXCEPTIONS:

• MilvusClientExceptions

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

Example

import io.milvus.v2.client.ConnectConfig;
import io.milvus.v2.client.MilvusClientV2;
import io.milvus.v2.service.collection.request.AlterCollectionPropertiesReq;

// 1. Set up a client
ConnectConfig connectConfig = ConnectConfig.builder()
        .uri("http://localhost:19530")
        .token("root:Milvus")
        .build();
        
MilvusClientV2 client = new MilvusClientV2(connectConfig);

// 2. Alter the `collection.ttl.seconds` property
Map<String, String> properties = new HashMap<>()
properties.put("collection.ttl.seconds", "86400")

AlterCollectionPropertiesReq alterCollectionFieldReq = AlterCollectionPropertiesReq.builder()
        .collectionName("test")
        .properties(properties)
        .build();
client.alterCollectionProperties(alterCollectionFieldReq)