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  • Python

has_collection()

This operation checks whether a specific collection exists.

Request Syntax

has_collection(
    collection_name: str,
    timeout: Optional[float] = None
) -> Bool

PARAMETERS:

  • collection_name (str) -

    [REQUIRED]

    The name of a collection.

  • timeout (float | None) -

    The timeout duration for this operation.

    Setting this to None indicates that this operation timeouts when any response returns or error occurs.

RETURN TYPE:

bool

RETURNS:

A boolean value indicating whether the specified collection exists.

EXCEPTIONS:

  • MilvusException

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

Examples

from pymilvus import MilvusClient

# 1. Set up a milvus client
client = MilvusClient(
    uri="http://localhost:19530",
    token="root:Milvus"
)

# 2. Create a collection
client.create_collection(collection_name="test_collection", dimension=5)

# 3. Check whether a collection named `test_collection` exists
client.has_collection(collection_name="test_collection") 

# True

# 4. Check whether a collection named `test_collection_2` exists
client.has_collection(collection_name="test_collection_2") 

# False

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