Set default attribute for lob partition table??

Hi

I have problem to change the default attribute for lobs so that new partitions get created with securefile instead of basicfile. Running Oracle 11.2.0.4.

alter session set db_securefile = 'PERMITTED';

Create partitioned table with a lob/clob in

create table test_lob
  (pk_id number
  ,requestlob clob
  )
   PARTITION BY RANGE (pk_id)
( PARTITION id VALUES LESS THAN (100));

Add a partiton that also will not use securefile

alter table test_lob
  add partition values less than(200);

select column_name, lob_name, partition_name, lob_partition_name, tablespace_name, securefile from user_lob_partitions where table_name = 'TEST_LOB';

COLUMN_NAME     LOB_NAME                       PARTITION_NAME                 LOB_PARTITION_NAME             TABLESPACE_NAME      SECUREFILE
--------------- ------------------------------ ------------------------------ ------------------------------ -------------------- ----------
REQUESTLOB      SYS_LOB0009526482C00002$$      FIRSTPART                      SYS_LOB_P1516051               USERS                NO
REQUESTLOB      SYS_LOB0009526482C00002$$      SYS_P1516053                   SYS_LOB_P1516054               USERS                NO