ora-12801错误

今天开发人员遇到如下错误

SQL> SELECT * from
  2             FT_SB_FCS   C,
  3             FT_DJ_FCDJ  D
  4       WHERE C.YXBZ = 'Y'
  5         AND C.CQZH = D.FCDJXH
  6         AND D.ZYBZ = 'Y'
  7         AND D.YXBZ = 'Y';
SELECT * from
*
ERROR at line 1:
ORA-12801: error signaled in parallel query server P003
ORA-01722: invalid number

错误信息其实是第2行，
------------------------------------------------
ORA-12801 error signaled in parallel query server string
Cause: A parallel query server reached an exception condition.
Action: Check the following error message for the cause.
------------------------------------------------

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