Requests that a task be cancelled. This operation may of may not have any effect depending on the task's status, even if it returns true. If it returns false, then the task has not been cancelled.
a task ID returned by gda.connection.Connection.asyncStatementExecute
TRUE if no error occurred
ConnectionException
Requests that a task be cancelled. This operation may of may not have any effect depending on the task's status, even if it returns true. If it returns false, then the task has not been cancelled.