一、Adaptive Query Execution 自适应查询
https://blog.51cto.com/u_12865/7338853
二、Dynamic Partion Pruning 动态裁剪分区
Apache Spark 3.0 动态分区裁剪（Dynamic Partition Pruning）介绍
https://www.iteblog.com/archives/8589.html
Apache Spark 3.0 动态分区裁剪（Dynamic Partition Pruning）使用
https://www.iteblog.com/archives/8590.html
三、其他新特性
https://pgmanor.gitee.io/blog/2020/12/31/blog-spark-version-3/