????????Flink table api/sql code gen ????

[Vincent Cai]

Hi all,
??Spark????????????????Dataset??queryExecution.debug.codegen() ???????? 
Catalyst ????????????
??Flink????????????????????????code gen????????


????????: 
https://medium.com/virtuslab/spark-sql-under-the-hood-part-i-26077f85ebf0


Regards
Vincent  Cai