Ошибка при добавлении коллекции в таблицу

SQL> ALTER TABLE post_lico ADD (doc2 Document_tab_typ) 
  2     NESTED TABLE doc2 STORE AS post_lico_doc2;
ALTER TABLE post_lico ADD (doc2 Document_tab_typ)
*
ERROR at line 1:
ORA-02320: failure in creating storage table for nested table column DOC2
ORA-22913: must specify table name for nested table column or attribute

SQL> set feedback off
SQL> create table scott.post_lico
  2  (dummy number)
  3  /
SQL> create type scott.document_typ as object
  2  (a number);
  3  /
SQL> create or replace type scott.document_tab_typ as table of scott.document_typ
  2  /
SQL> alter table scott.post_lico add doc2 scott.document_tab_typ
  2  nested table doc2 store as post_lico_doc2
  3  /
SQL> desc scott.post_lico
 Name                                      Null?    Typ
 ----------------------------------------- -------- ----------------------------
 DUMMY                                              NUMBER
 DOC2                                               SCOTT.DOCUMENT_TAB_TYP