PH60725: ABEND0C4 RC38 IN DSNXOTS+18082 CAN OCCUR FOR A QUERY WHERE ONE OF THE TABLES HAS FULLY MATCHING EQUAL UNIQUE INLIST ACCESS

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• ABEND0C4 RC38 in DSNXOTS+18082 can occur for a query where one
  of the tables has fully matching equal unique INLIST access.
  Also, there is an index with FULLKEYCARDF equal to the
  cardinality of the table.
  

Local fix

• n/a
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of Db2 12 and 13 for z/OS          *
  *                 running queries referencing multiple         *
  *                 tables and one table with local predicates   *
  *                 that are very filtering.                     *
  ****************************************************************
  * PROBLEM DESCRIPTION: ABEND0C4 RC38 in DSNXOTS+18082 can      *
  *                      occur for a query when the following    *
  *                      conditions are met.                     *
  *                                                              *
  *                      (1)There exists one table that is       *
  *                      very filtering after applying local     *
  *                      predicates compared with other          *
  *                      tables, and                             *
  *                      (2)There is no multi-column             *
  *                      cardinality statistics or frequency     *
  *                      statisitics on the table in (1).        *
  ****************************************************************
  * RECOMMENDATION: Apply corrective PTF when available          *
  ****************************************************************
  ABEND0C4 RC38 in DSNXOTS+18082 can occur for a query when
  the following conditions are met.
  
  (1)There exists one table that is very filtering after
  applying local predicates compared with other tables, and
  (2)There is no multi-column cardinality statistics or
  frequency statisitics on the table in (1).
  
  The abend is because Db2 accesses invalid storage when
  checking the statistics in (2).
  

Problem conclusion

• PH60725 fixes the abend by checking the validity of the
  storage before accessing the multi-column cardinality
  statistics or frequency statisitics.
  
  SQLWHERE SQLSTATS
  

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:

  UI96882 UI96883

Modules/Macros

• DSNXOTS
  

Fix information

• Fixed component name

  DB2 OS/390 & Z/

• Fixed component ID

  5740XYR00

Applicable component levels

• RC10 PSY UI96882

     UP24/05/24 P F405

• RD10 PSY UI96883

     UP24/05/24 P F405

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.