Demo 1 select l_shipdate from lineitem where l_quantity = 1 and l_discount = 0; Oracle Execution Plan Operation: table access Options: FULL Object_type: TABLE Other: Object_owner: CALUSER01 Search_columns: Projection: L_SHIPDATE Object_name: LINEITEM Alias: LINEITEM@SEL$1 Extended_information: FP:L_QUANTITY=1 AND L_DISCOUNT=0 Access_predicates: Filter_predicates: L_QUANTITY=1&L_DISCOUNT=0 Select_level: SEL$1 -------------------- Operation: select statement Options: Object_type: Other: Object_owner: Search_columns: Projection: Object_name: Alias: Extended_information: Access_predicates: Filter_predicates: Select_level: -------------------- Calpont Execution Plan >SELECT MAIN >>Returned Columns 1. SimpleColumn tpch.LINEITEM.L_SHIPDATE s/t/c/T/A: tpch/LINEITEM/L_SHIPDATE/35/LINEITEM >>Filters SimpleFilter SimpleColumn tpch.LINEITEM.L_QUANTITY s/t/c/T/A: tpch/LINEITEM/L_QUANTITY/29/ Operator: = ConstantColumn: 1(n) SimpleFilter SimpleColumn tpch.LINEITEM.L_DISCOUNT s/t/c/T/A: tpch/LINEITEM/L_DISCOUNT/31/ Operator: = ConstantColumn: 0(n) Operator: AND SessionID: 5000 TxnID: 407 VerID: 407 --- Column Map --- L_DISCOUNT : 0x9849140 L_QUANTITY : 0x9844758 L_SHIPDATE : 0x9849650