分析表信息
analyze table dwd.test_123 compute statistics;
set hive.compute.query.using.stats=true;
查看表信息
desc formatted dwd.test_123;
查看执行计划
explain select count(*) from dwd.test_123;

分析表信息
analyze table dwd.test_123 compute statistics;
set hive.compute.query.using.stats=true;
查看表信息
desc formatted dwd.test_123;
查看执行计划
explain select count(*) from dwd.test_123;