RMAN> list copy;

RMAN-03022: compiling command: list

RMAN> list copy of database archivelog all;

RMAN-03022: compiling command: list

List of Archived Log Copies
Key Thrd Seq S Completion time Name
------- ---- ------- - --------------- ------------------------------------
144 1 27 A Apr 06 2001 17:40:10 /u01/app/arch/arch_1_27.arc
147 1 28 A Apr 09 2001 14:21:08 /u01/app/arch/arch_1_28.arc
150 1 29 A Apr 09 2001 14:22:06 /u01/app/arch/arch_1_29.arc
153 1 30 A Apr 09 2001 14:31:42 /u01/app/arch/arch_1_30.arc
156 1 31 A Apr 09 2001 15:55:58 /u01/app/arch/arch_1_31.arc
159 1 32 A Apr 09 2001 15:57:49 /u01/app/arch/arch_1_32.arc
162 1 33 A Apr 09 2001 14:46:55 /u01/app/arch/arch_1_44.arc
143 1 44 A Apr 10 2001 14:46:55 standby1



is this correct or not?
i think "list copy" should INCLUDE all information "list copy of database archivelog all" returned.
but in my case, "list copy" return nothing
but "list copy of database archivelog all" return something.