IC83453: XML INPUT STORED PROCEDURE/UDF WITH PARAMETER MARKER AND REOPT ALWAYS ENABLED CAN RETURN SQL0901N

DB2 Version 9.7 Fix Pack 7 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 8 for Linux, UNIX, and Windows

APAR status

• Closed as program error.

Error description

• The following error may be returned to an application calling a
  UDR or UDF :
  
  SQL0901N  The SQL statement failed because of a non-severe
  system error. Subsequent SQL statements can be processed.
  (Reason "QGM internal error: xpath does not have context qnc!".)
  SQLSTATE=58004
  
  This happens when REOPT ALWAYS was enabled when the procedure
  was created
  ( via SYSPROC.SET_ROUTINE_OPTS('REOPT ALWAYS') ) and when one of
  the input parameters is of data type XML.
  
  There will be a trap file produced as well with the following
  callstack :
  
  sqloDumpEDU
  sqldDumpContext
  sqlrr_dump_ffdc
  sqlzeDumpFFDC
  sqlzeSqlCode
  sqlnn_erds
  sqlnq_xp_merge_xpaths
  sqlnr_merge_compute_boxes
  sqlnr_merge_and_create_mep
  sqlnr_xq_native_optprep
  sqlnr_optprep
  sqlnr_optprep_action
  sqlnr_comp
  sqlnr_seq
  sqlnr_rcc
  sqlnr_exe
  sqlnn_cmpl
  

Local fix

• Do not use REOPT ALWAYS for stored procedures that match the
  criteria of this apar.
  Recode the application to avoid using XML input parameters.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * All                                                          *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See Error Description                                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Upgrade to DB2 version 970 fix pack 7                        *
  ****************************************************************
  

Problem conclusion

• Problem has been fixed in DB2 version 970 fix pack 7
  

Temporary fix

Comments

APAR Information

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

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

  IC87862

Fix information

• Fixed component name

  DB2 FOR LUW

• Fixed component ID

  DB2FORLUW

Applicable component levels

• R970 PSN

     UP

• R970 PSY

     UP