text: CREATE PROCEDURE releaseReadLock(IN lockKey VARCHAR(256), IN tokenIn VARCHAR(256))
  BEGIN
  	DECLARE writeLockToken VARCHAR(256);
  	DECLARE precursorToken VARCHAR(256);
  
  	/* Lock on master and get the state of the write an precursor tokens */
  	CALL lockOnWriteReadMaster(lockKey, writeLockToken, precursorToken);
  	/* delete this read lock using its token */
  	DELETE FROM WRITE_READ_LOCK WHERE LOCK_KEY = lockKey AND TOKEN = tokenIn;
  	/*Count the rows affected by the delete*/
  	SELECT ROW_COUNT() AS RESULT;
  	COMMIT;
  END;