ร่าง MLB ใดที่มีโรงเรียนมัธยมแห่ง Green Valley High School?ไม่จำเป็นต้องใช้ตารางทั้งหมด
What MLB draft has a School of green valley high school?It is not neccessary to use all the tables.
 table_57549:  "Player" [ text]  "Position" [ text]  "School" [ text]  "Hometown" [ text] 
SELECT "MLB Draft" FROM table_57549 WHERE "School" = 'green valley high school'