truncate_collection()

This operation removes all entities while preserving the collection’s schema, constraints, and indexes. It is more efficient than deleting entities because it hides all entities flushed before the current timestamp from searches and queries and drops them in the background.

Request Syntax

truncate_collection(
    collection_name: str, 
    timeout: Optional[float] = None
)

PARAMETERS:

• collection_name (string) –

  [REQUIRED]

  The name of the target collection.

• timeout (float) –

  Timeout (in seconds) for the RPC request. If None, the call waits indefinitely.

RETURN TYPE:

None

EXCEPTIONS:

• CollectionNotExists

  This exception will be raised when the specified collection does not exist.

Examples

from pymilvus import MilvusClient, DataType

client = MilvusClient(
    uri="http://localhost:19530",
    token="root:Milvus"
)

client.truncate_collection(
    collection_name="my_collection"
)