def DeleteKey(self, progress_key):
    self._OpenSecondaryConnection()

    assert _RunningInThread(self.secondary_thread)

    t = time.time()
    self.insert_cursor.execute(
        'delete from progress where rowid = ?', (progress_key,))

    logger.debug('delete: delta=%.3f', time.time() - t)

    self._MaybeCommit()
Delete the entities with the given key from the result database.
dataset/ETHPy150Open GoogleCloudPlatform/python-compat-runtime/appengine-compat/exported_appengine_sdk/google/appengine/tools/bulkloader.py/_ProgressDatabase.DeleteKey