IC89918: A FEDERATED QUERIY CONTAINING SUBQUERY PREDICATES MAY FAIL WITH SQL0901N IN AN SMP ENVIRONMENT.

APAR status

• Closed as program error.

Error description

• In SMP mode, a federated query containing subquery predicates
  may fail with SQL0901N during compilation.
  An example of the failing query:
  SELECT 1 FROM NNT1 A  WHERE    (EXISTS(SELECT 1 FROM NNT2 WHERE
  C1=LOCALFUNC1('test')) OR C2='test');
  where NNT1/NNT2 are remote tables and LOCALFUNC1 is a local
  function that accesses local tables.
  
  Error received:
  SQL0901N  The SQL statement failed because of a non-severe
  system error.
  Subsequent SQL statements can be processed.  (Reason
  "sqlnoSmpPlanShipOp
  [100]:rc(     0)                ".)  SQLSTATE=58004
  
  The following error stack can be found in the trace:
  -------Frame------ ------Function + Offset------
  0x09000000004CD6B0 pthread_kill + 0xB0
  0x0900000005255D48 sqloDumpEDU + 0xA4
  0x09000000052B43BC sqldDumpContext__FP9sqeBsuEduiN42PCcPvT2 +
  0x100
  0x0900000005215250
  sqldDumpContext__FP9sqeBsuEduiN42PCcPvT2@glue59B + 0x98
  0x0900000005690BBC sqlrr_dump_ffdc__FP8sqlrr_cbiT2 + 0x360
  0x0900000009243FD4 sqlzeDumpFFDC__FP8sqeAgentUiP5sqlcai + 0x50
  0x0900000005920798 sqlzeSqlCode__FP8sqeAgentUiUlT2P5sqlcaiUsPc +
  0x238
  0x09000000055D96DC sqlnn_erds__FiN41e + 0x340
  0x09000000082B2600
  sqlnoSmpPlanShipOp__FP20SQLNO_SMP_POSTOPT_CBP21SQLNO_POSTOPT_CON
  TEXTPP19sqlno_plan_operator + 0x400
  0x09000000082ACCCC
  sqlnoSmpPlanNLJNOp__FP20SQLNO_SMP_POSTOPT_CBP21SQLNO_POSTOPT_CON
  TEXTPP19sqlno_plan_operator + 0xB38
  0x09000000082ACCCC
  sqlnoSmpPlanNLJNOp__FP20SQLNO_SMP_POSTOPT_CBP21SQLNO_POSTOPT_CON
  TEXTPP19sqlno_plan_operator + 0xB38
  0x09000000082B02A8
  sqlnoSmpPlanMateOp__FP20SQLNO_SMP_POSTOPT_CBP21SQLNO_POSTOPT_CON
  TEXTPP19sqlno_plan_operator + 0x54C
  0x09000000082B0678
  sqlnoSmpPlanPipeOp__FP20SQLNO_SMP_POSTOPT_CBP21SQLNO_POSTOPT_CON
  TEXTPP19sqlno_plan_operator + 0x340
  0x09000000082C7054
  sqlno_smp_process_subsection__FP20SQLNO_SMP_POSTOPT_CBP19sqlno_p
  lan_operatorP17sqlno_smp_ss_info + 0x444
  0x09000000082B612C
  sqlnoSmpPlanPass__FP20SQLNO_SMP_POSTOPT_CBP19sqlno_plan_operator
  P13sqlno_costtyp + 0x6C8
  0x09000000082B5934 sqlnoSmpPostPassMain + 0x2F8
  0x090000000658EA9C sqlno_final_phase__FP13sqlno_globals + 0x5B0
  0x0900000008E1A9D0 sqlno_exe__FP9sqlnq_qur + 0x638
  0x0900000008FE9084 sqlno_exe__FP9sqlnq_qur@glue1754 + 0x84
  0x0900000008FE91D0
  sqlnn_cmpl__FP8sqeAgentP11sqlrrstrings17sqlnn_compileModeT3P14sq
  lrr_cmpl_enviT7PP9sqlnq_qur + 0x94
  0x09000000090987E8
  sqlnn_cmpl__FP8sqeAgentP11sqlrrstrings17sqlnn_compileModeT3P14sq
  lrr_cmpl_env + 0x40
  

Local fix

• Disable SMP
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * All users running DB2 v10.1 FP1 or earlier.                  *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See Error Description                                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Upgrade to DB2 v10.1 Fix Pack 2.                             *
  ****************************************************************
  

Problem conclusion

• The problem was fixed in DB2 v10.1 Fix Pack 2.
  

Temporary fix

• Disable SMP
  

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

  IC83806

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  DB2 FOR LUW

• Fixed component ID

  DB2FORLUW

Applicable component levels

• RA10 PSY

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