Hello everyone: Now I am learning calcite streamSQL. I have two questions. Anyone can help me. Thanks in advance.
The questions are following: 1、 what is the difference between HepPlanner and VolcanoPlanner? For streamSQL ,which one is better? Are there have some materials to introduce two models? 2、 In the logic plan tree, window is combined with aggregate node or expression node. In which case, there is a lonely window node in logic plan?
