如何在一个Flink作业中将数据写入到不同的Elasticsearch集群中？

在对应的Flink作业中添加如下SQL语句。

create source stream ssource(xx);
create sink stream es1(xx) with (xx);
create sink stream es2(xx) with (xx);
insert into es1 select * from ssource;
insert into es2 select * from ssource;