Sparksql解析相关博客

Spark sql catalyst解析过程及 RBO&＃xff1a;http://www.jasongj.com/spark/rbo/

CBO详解&＃xff1a;http://www.jasongj.com/spark/cbo/

CBO源码间析&＃xff1a;https://my.oschina.net/KasuganoShin/blog/4427738

catalyst 介绍 、SparkPlanner 及 UI 分析&＃xff1a;https://www.jianshu.com/p/410c23efb565

分析表操作&＃xff1a;https://www.qubole.com/blog/automatic-statistics-collection-better-query-performance/

If you run the Hive statement ANALYZE TABLE COMPUTE STATISTICS FOR COLUMNS, Impala can only use the resulting column statistics if the table is unpartitioned. Impala cannot use Hive-generated column statistics for a partitioned table.

https://docs.cloudera.com/runtime/7.2.7/impala-reference/topics/impala-perf-stats.html