title: can we use Lua and redis implement complex content-based pub/sub system again
body: <p>Here is the question, I am a rookie for redis and recently I learned the high-level usage of Lua to implement more complex command build-in redis. Here is my new idea. As we all know, redis can achieve MQ in 1 on 1 way using list and achieve topic-based pub/sub system cause redis supply such functionality. Recently I learned a more fine-grained pub/sub pattern -- content-based pub/sub system. But I am not familiar with Lua and redis. So I wanna ask if there is possible to achieve content-based pub/sub system in this way?</p>
  <p>anyone else to help me please, this questions involves a recent project of mine. Help me to find a cheaper way out to implement a content-based pub/sub system!</p>