在 Spring 数据 Jpa 中，如何从两个不同的数据源运行 SQL 联合查询...？

Question

I need to perform a SQL join of two entities and with different data sources. I have an entity A with datasource A and an entity B with datasource B, and I need to do something like this...

"select new A(a,b) from A a, B b where a.id = b.id"

I'm using two databases and I have two datasources configuration, one for each

Answer 1

You can use middleware like mycat2 to do this.