projections: Spring Data JPA interface, record, nested and dynamic projections with the SQL they generate

Co-Authored-By: Claude Sonnet 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_017ic4b5sejRr8s3kapmRY2g
2026-11-12 23:51:00 +05:30
parent 7d7d4e872e
commit e3d1b550ae
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+# Page<EmployeeSummary>, page size 2
+select e1_0.first_name,e1_0.last_name from employee e1_0 left join department d1_0 on d1_0.id=e1_0.department_id where d1_0.name=? fetch first ? rows only
+select count(*) from employee e1_0 left join department d1_0 on d1_0.id=e1_0.department_id where d1_0.name=?
+statements: 2, rows in page: 2, total elements: 4
+
+# what an interface projection really is at runtime
+is a java.lang.reflect.Proxy: true
+is an Employee: false