Separation of hot and cold data

[yilongrong]

Feature Request

Describe the feature you'd like:
Separation of hot and cold data

Describe alternatives you've considered:
reduct hardware cost

https://asktug.com/t/topic/34614/19

[zhangjinpeng87]

This feature should consider both on-premise and cloud environments. In the cloud environment may have a different strategy to sperate cold and hot data than the on-premise environment.