has_collection()

This operation checks whether a collection exists.

Request Syntax

has_collection(
    collection_name: str,
    using: str = "default",
    timeout: float | None,
)

PARAMETERS:

• collection_name (str) -

  [REQUIRED] The name of an existing collection.

• using (str) -

  The alias of the employed connection.

  The default value is default, indicating that this operation employs the default connection.

• timeout (float | None)

  The timeout duration for this operation. Setting this to None indicates that this operation timeouts when any response arrives or any error occurs.

RETURN TYPE:

bool

RETURNS: A boolean value indicates whether the specified partition exists.

EXCEPTIONS:

• MilvusException

  This exception will be raised when any error occurs during this operation, especially when the specified alias does not exist.

Examples

from pymilvus import connections, utility

# Connect to localhost:19530
connections.connect()

# Check whether a partition exists
collection.has_collection(
    collection_name="test_collection",
) # True