========= 基础 =========
1、Hive sql to MR
https://cwiki.apache.org/confluence/display/Hive/Design
2、外部表和内部表
3、Hive shuffle 算子
4、Hive 存储和压缩格式
5、Hive Datamodel
6、Hive Bucket
https://cwiki.apache.org/confluence/display/Hive/LanguageManual+DDL+BucketedTables
https://blog.youkuaiyun.com/m0_37534613/article/details/55258928
细粒度、hash
7、Hive CBO