PK45602: ADMIN TOOL UPDATE OPT HINTS CORRUPTS PLAN TABLE DATA FIELDS LIKE MATCHCOLS INDEXONLY SORTN_UNIQ ETC AFFECTED

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Using Explain function in the DB2 Administration Tool Option
  E.E panel ADB2E ADB2EE ADB2ELIH ADB2PSTM to HU or update an
  optimizer hint corrupts table data . User inputs in panel ADB2EE
  SELECT * FROM
   DSN8710.DEPT WHERE DEPTNO = 'A00' ;
  Then in panelid ADB2ELIH uses HU to update the optimizer hint.
  The resulting columns in panelid ADB2PSTM are incorrect:
  Column Name    Original Value    Updated Value
  ------------   --------------    ---------------
  MATCHCOLS          1                  0
  INDEXONLY          N                  blank
  SORTN_UNIQ         N                  blank
  SORTN_ORDERBY      N                  blank
  SORTN_GROUPBY      N                  blank
  SORTC_UNIQ         N                  blank
  SORTC_ORDERBY      N                  blank
  SORTC_GROUPBY      N                  blank
  TSLOCKMODE         IS                 blank
  PARALLELISM_MODE   ?                  blank
  IBM_SERVICE_DATA .}ﾄ./￶ .￦      K    blank
  QBLOCK_TYPE        SELECT             blank
  BIND_TIME  2007-05-15-12.04.04.490000 2007-05-15-12.05.32.498952
  .
  If this is allowed to run it would corrupt the table data.
  

Local fix

• Please apply ptf when available.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: Admin Tool users who use optimizer hints.    *
  ****************************************************************
  * PROBLEM DESCRIPTION: Updating  an  optimizer   hint  updated *
  *                      columns which should be retained as is. *
  ****************************************************************
  * RECOMMENDATION: Code change solves problem.                  *
  ****************************************************************
  Changed UH line command to only update hint-related columns in
  the plan table.
  

Problem conclusion

• Code change solves problem.
  

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:

Modules/Macros

•    ADB2ELIH
  

Fix information

• Fixed component name

  DB2 ADMIN TOOL

• Fixed component ID

  568851500

Applicable component levels

• R710 PSY UK32063

     UP07/12/19 P F712

• R720 PSY UK32064

     UP07/12/19 P F712

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.