Modify a collection
This topic describes how to modify the properties, especially the time to live (TTL), of a collection.
Currently, the TTL feature is only available in Python.
collection = Collection("books")
collection.set_properties(properties={"collection.ttl.seconds": 1800})
AlterCollectionParam alterCollectionParam = AlterCollectionParam.newBuilder
.withCollectionName("books")
.withTTL(1800)
client.AlterCollection(context.Background(), "books", entity.CollectionTTL(1800))
The example above changes the collection TTL to 1800 seconds.
| Parameter | Description | Option |
|---|---|---|
| Properties: collection.ttl.seconds | Collection time to live (TTL) is the expiration time of data in a collection. Expired data in the collection will be cleaned up and will not be involved in searches or queries. Specify TTL in the unit of seconds. | The value should be 0 or greater. The default value is 0, which means TTL is disabled. |
TTL only happens after compaction which means the expired data will be invisible and GC after segment compacted.
What’s next
- Learn more basic operations of Milvus: