set autotrace 报错sp2-0613&sp2-0618

同事创建了role plustrace，使用system登录可以使用autotrace。
但以普通用户test登录时，报错：

SQL> connect test/test
Connected.

SQL> set autotrace on
SP2-0613: Unable to verify PLAN_TABLE format or existence
SP2-0611: Error enabling EXPLAIN report
SP2-0618: Cannot find the Session Identifier.  Check PLUSTRACE role is enabled
SP2-0611: Error enabling STATISTICS report

检查角色设置
SQL> select * from user_role_privs;

USERNAME                       GRANTED_ROLE                   ADM DEF OS_
------------------------------ ------------------------------ --- --- ---
TEST                          CONNECT                        NO  YES NO
TEST                           PLUSTRACE                      NO  YES NO
TEST                           RESOURCE                       NO  YES NO

检查表
SQL> select synonym_name,table_name,table_owner from all_synonyms where synonym_name = 'PLAN_TABLE';

no rows selected

应是表PLAN_TABLE没有赋予plustrace select权限。

SQL> connect system/manager as sydba

Connected.

SQL> create public synonym plan_table for plan_table;

Synonym created.

SQL> grant all on plan_table to public;

Grant succeeded.

再试：
SQL> connect test/test
Connected.

SQL> set autotrace on
SP2-0618: Cannot find the Session Identifier.  Check PLUSTRACE role is enabled
SP2-0611: Error enabling STATISTICS report

网上查找，tom说了： http://asktom.oracle.com/pls/ask/f?p=4950:8:::::F4950_P8_DISPLAYID:5671636641855
Followup:

look up a couple of reviews.

I believe you have slightly mismatched versions of SQLPlus and database.

9203 and up use v$mystat
9202 and before use v$session

9201 client and lower queries v$session
9203 client and higher queries v$mystat

make sure plustrace has select on v$mystat and v$session or use the same version
of sqlplus as database.

我的Oracle server和SQL*Plus的版本都是9.0.2.4.0,找到原因了

SQL> connect system/manager as sydba

Connected.

SQL> grant select on v_$mystat to plustrace;

Grant succeeded.

SQL> connect test/test

Connected.

SQL> set autotrace on
成功！