Bug 11846265 - ORA-00600: [KKQTSETOP.1] CAUSED BY JOIN FACTORIZATION
closed as a duplicate of:
Bug 12537316 - QBCXXSELSQ FLAG IS NOT CLEARED AFTER VIEW MERGING
where if Join Factorization is enabled ("_optimizer_force_CBQT" = "JF"), then a SET operation that contains redundant conditions in WHERE clause may return the listed ORA-600 or ORA-1790.
SOLUTION
o Upgrade to 12.1.0.1
OR:
o Apply 11.2.0.4 or above
OR:
o Apply Patch 12537316 if available for your platform and Oracle version
- OR -
o Use the following workaround:
SQL> alter session set "_optimizer_join_factorization" = FALSE;
Note: There are some other bugs reporting the same ORA-600 and a similar call stack.
Please refer to
Note 1200522.1 - ORA-600 [kkqtSetOp.1]
which allows you to limit bug candidates based on your actual Oracle version