[BitSail][Feature] Support more split strategy in Clickhouse Source.

[BlockLiu]

Is your feature request related to a problem? Please describe

Current Clickhouse source only supports simple split strategy, i.e., evenly divide all data into groups.

Describe the solution you'd like

Maybe we can support more split strategies, like user defined split strategy by config options.

[john8628]

i will try it, please assign to me

[BlockLiu]

Hi @john8628, do you have any progress on this issue? We can discuss any question or idea here if you have :D