12.1.0.2 : How to detect analytic indexes to drop them ?

Hi ,

I would like to implement in-memory option by following next steps :

1/

alter system set memory_max_target=7G SCOPE=SPFILE; -- Actual memory_max_target = 4 Go.

alter system set memory_target=7G SCOPE=SPFILE;  -- Actual memory_target = 4 Go.

ALTER SYSTEM SET INMEMORY_SIZE=3G SCOPE=SPFILE;

SHUTDOWN IMMEDIATE;

STARTUP;

2/

ALTER TABLE IM_TAB_1  INMEMORY;

ALTER TABLE IM_TAB_2  INMEMORY;

...

ALTER TABLE IM_TAB_N  INMEMORY;

3/

My question is , how to detect analytic indexes in order to drop them ?

Best regards.

GD.