ALTER TYPE MODIFY ATTRIBUTE cascade including table data

Question

Hi,
does anybody know, why I get "ORA-00932: inconsistent datatypes: expected REF TYPE1_T got REF TYPE1_T"
after ALTER TYPE MODIFY ATTRIBUTE cascade including table data when the altered type contains a nested table of type REFs.
according to the documentation this should work? This works when the type contains a nested table of types!
ORACLE Version: 9i EE 9.2.0.3.0 64 bit
OS: HP-UX 11
-- create type1
CREATE OR REPLACE
TYPE TYPE1_T AS OBJECT
T1COL1 NUMBER,
T1COL2 VARCHAR2(35),
TYPE2REF REF TYPE2_T
-- create coll of type1 refs
CREATE OR REPLACE
type TYPE1COLL_T IS TABLE OF REF TYPE1_T
-- create type2
CREATE OR REPLACE
TYPE TYPE2_T AS OBJECT
T2COL1 NUMBER,
TYPE1COLL TYPE1COLL_T
-- create table of type1_t
CREATE TABLE TYPE1_OTB OF TYPE1_T
-- create table of type2_t
CREATE TABLE TYPE2_OTB OF TYPE2_T
nested table type1coll store as type1coll_ntb
-- populate type1_otb
INSERT INTO type1_otb
VALUES(1, 'ABCDEF',NULL);
-- populate type2_otb
INSERT INTO type2_otb
VALUES(1,TYPE1COLL_T());
select * from type1_otb;
T1COL1 T1COL2
TYPE2REF
1 ABCDEF
select * from type2_otb;
T2COL1
TYPE1COLL
1
TYPE1COLL_T()
ALTER TYPE type1_t MODIFY ATTRIBUTE t1col2 varchar2(50) cascade including table data;
Type altered.
select * from type1_otb;
T1COL1 T1COL2
TYPE2REF
1 ABCDEF
select * from type2_otb;
select * from type2_otb
ERROR at line 1:
ORA-00932: inconsistent datatypes: expected REF TYPE1_T got REF TYPE1_T

Answer 1

Hi John,
I am also facing the same problem after executing the command
SQL> alter type product_object modify attribute (NAME VARCHAR2(80)) cascade;
with the following error
ORA-00932: inconsistent datatypes: expected REF WOLFOBJECTS.EMPLOYEE_OBJECT got
WOLFOBJECTS.EMPLOYEE_OBJECT
Could you please suggest any alternate or workaround for this issue?
Thanks
Sara