insert into ontime_local (FlightDate,Year) values ('2020-03-12',2020);
查询总表
select * from ontime_all;
写入总表,数据会分布到各个单表中
insert into ontime_all (FlightDate,Year)values('2001-10-12',2001);
insert into ontime_all (FlightDate,Year)values('2002-10-12',2002);
insert into ontime_all (FlightDate,Year)values('2003-10-12',2003);
任意关闭一台服务,集群查询直接挂掉