第十六题:同时在线问题
create table sql1_16 (id int,stt string,edt string
)
row format delimited
fields terminated by ,;
load data local inpath /home/homedata/sql_1/sql1_16.txt into table sql1_16;id stt edt
1001,2021-…
SQLMetric
Spark Plan 包含以下基本 方法, /*** return All metrics containing metrics of this SparkPlan.*/def metrics: Map[String, SQLMetric] Map.empty/*** return [[SQLMetric]] for the name.*/def longMetric(name: String): SQLMetric metrics(name)…