naive profile / 20 books, 5 distinct authors (4 books per author) — repeats do not help 1. select b1_0.id,b1_0.author_id,b1_0.title from book b1_0 2. select a1_0.id,a1_0.name from author a1_0 where a1_0.id=? 3. select a1_0.id,a1_0.name from author a1_0 where a1_0.id=? 4. select a1_0.id,a1_0.name from author a1_0 where a1_0.id=? 5. select a1_0.id,a1_0.name from author a1_0 where a1_0.id=? 6. select a1_0.id,a1_0.name from author a1_0 where a1_0.id=? 7. select a1_0.id,a1_0.name from author a1_0 where a1_0.id=? 8. select a1_0.id,a1_0.name from author a1_0 where a1_0.id=? 9. select a1_0.id,a1_0.name from author a1_0 where a1_0.id=? 10. select a1_0.id,a1_0.name from author a1_0 where a1_0.id=? 11. select a1_0.id,a1_0.name from author a1_0 where a1_0.id=? 12. select a1_0.id,a1_0.name from author a1_0 where a1_0.id=? 13. select a1_0.id,a1_0.name from author a1_0 where a1_0.id=? 14. select a1_0.id,a1_0.name from author a1_0 where a1_0.id=? 15. select a1_0.id,a1_0.name from author a1_0 where a1_0.id=? 16. select a1_0.id,a1_0.name from author a1_0 where a1_0.id=? 17. select a1_0.id,a1_0.name from author a1_0 where a1_0.id=? 18. select a1_0.id,a1_0.name from author a1_0 where a1_0.id=? 19. select a1_0.id,a1_0.name from author a1_0 where a1_0.id=? 20. select a1_0.id,a1_0.name from author a1_0 where a1_0.id=? 21. select a1_0.id,a1_0.name from author a1_0 where a1_0.id=? total statements: 21