Table:              env.Get(tableEnv, kv.Get(target.MySQLTable)),
			QueueDir:           env.Get(queueDirEnv, kv.Get(target.MySQLQueueDir)),
			QueueLimit:         queueLimit,
			MaxOpenConnections: maxOpenConnections,
		}
		if err = mysqlArgs.Validate(); err != nil {
			return nil, err
		}
		mysqlTargets[k] = mysqlArgs
	}
	return mysqlTargets, nil
}