Function drop_keyspace

cassandra/cqlengine/management.py:123–151

Drops a keyspace, if it exists. *There are plans to guard schema-modifying functions with an environment-driven conditional.* **This function should be used with caution, especially in production environments. Take care to execute schema modifications in a single context (i.e. not

(name, connections=None)

def drop_keyspace(name, connections=None):
    """
    Drops a keyspace, if it exists.

    *There are plans to guard schema-modifying functions with an environment-driven conditional.*

    **This function should be used with caution, especially in production environments.
    Take care to execute schema modifications in a single context (i.e. not concurrently with other clients).**

    :param str name: name of keyspace to drop
    :param list connections: List of connection names
    """
    if not _allow_schema_modification():
        return

    if connections:
        if not isinstance(connections, (list, tuple)):
            raise ValueError('Connections must be a list or a tuple.')

    def _drop_keyspace(name, connection=None):
        cluster = get_cluster(connection)
        if name in cluster.metadata.keyspaces:
            execute("DROP KEYSPACE {0}".format(metadata.protect_name(name)), connection=connection)

    if connections:
        for connection in connections:
            _drop_keyspace(name, connection)
    else:
        _drop_keyspace(name)

def _get_index_name_by_column(table, column_name):
    """