'Delete the entities with the given key from the result database.'

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()
