Introduction (Cont.) An evaluation plan defines exactly what algorithm is used for each operation,and how the execution of the operations is coordinated. Π customer_name(sort to remove duplicates) ☆(hash join) ☒(merge join) depositor pipeline pipeline branch_city Brooklyn balance<1000 (use index 1) (use linear scan) branch account Database System Concepts-5th Edition,Oct 5,2006. 14.4 ©Silberschat乜，Korth and SudarshanDatabase System Concepts - 5 14.4 ©Silberschatz, Korth and Sudarshan th Edition, Oct 5, 2006. Introduction (Cont.) An evaluation plan defines exactly what algorithm is used for each operation, and how the execution of the operations is coordinated