Load aggregates that have a single one-to-m relationship with a single select #1446
Description
This is the first step of implement single-select-querying for Spring Data JDBC.
It will only work for aggregates that have
- at most a single one-to-m relationship.
- no embedded entities.
- no nested entities.
Single Query Loading will be used for the relevant methods of CrudRepository
It should be implemented in a way that allows integration in Spring Data R2DBC