IT23907: IN CDE, INCORRECT RESULTS MIGHT BE RETURNED FOR A QUERY THAT REFERENCES A CORRELATED SCALARY SUBQUERY IN A PREDICATE

Db2 Version 11.1 Mod 3 Fix Pack 3 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod3 Fix Pack3 iFix001 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod3 Fix Pack3 iFix002 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod 4 Fix Pack 6 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod 4 Fix Pack 5 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod 4 Fix Pack 7 for Linux, UNIX, and Windows

APAR status

• Closed as program error.

Error description

• Incorrect result might be returned when an access plan contains
  an RCTQ operator over a FILTER operator that is over a scalar
  subquery subplan.
  
  The following criteria must be satisfied to encounter the issue:
  - the query references a column organized table
  - there is a predicate comparing the result of a scalar subquery
  and a column from the column organized table
  - the scalar subquery is correlated
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * CDE                                                          *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See Error Description                                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Upgrade to Db2 Version 11.1 Modpack 3 Fixpack 3 or later     *
  ****************************************************************
  

Problem conclusion

• Problem fixed in Db2 Version 11.1 Modpack 3 Fixpack 3
  

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:

  IT23938

Fix information

• Fixed component name

  DB2 FOR LUW

• Fixed component ID

  DB2FORLUW

Applicable component levels

• RB10 PSN

     UP