Redis also has these operations. See http://redis.io/topics/pubsub http://redis.io/topics/pubsub Note that these simplistic operations (both in Redis and Postg

Redis also has these operations. See http://redis.io/topics/pubsub http://redis.io/topics/pubsub Note that these simplistic operations (both in Redis and Postgres) don't handle many important parts of message passing (e.g. handling retransmission of failed messages, ensuring the application has processed the messages after receiving it, and so on).