naive profile / 5 books, 5 distinct authors (no repeats to dedupe)

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=?

total statements: 6