Operation: index
Options: FULL SCAN
Object_type: INDEX (UNIQUE)
Other: 
Object_owner: CALUSER01
Search_columns: 
Projection: O_ORDERKEY
Object_name: 
Alias: ORDERS@SEL$1
Extended_information: 
Access_predicates: 
Filter_predicates: 
Select_level: SEL$1
--------------------
Operation: sort
Options: GROUP BY NOSORT
Object_type: 
Other: 
Object_owner: 
Search_columns: 
Projection:  O_ORDERKEY
Object_name: 
Alias: 
Extended_information: 
Access_predicates: 
Filter_predicates: 
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: 
--------------------
