IT19093: SQL QUERIES MAY PRODUCE INCORRECT RESULTS DUE TO DB2 APAR IT13665

IBM Spectrum Protect Server V7.1 Fix Pack 8 (7.1.8.000) Downloads

APAR status

• Closed as program error.

Error description

• Any SELECT statements containing the IN or NOT IN clauses may
  not return valid results.  For example, the following query does
  not return an accurate count of filespaces:
  
     tsm: SERVER>select count(*) from filespaces where node_name
     in (select node_name from nodes where nodetype='CLIENT')
  
       Unnamed[1]
     ------------
                1
  
  The same query, when re-issued with the GROUP BY clause,
  correctly returns the count of matching filespaces:
  
     tsm: SERVER>select count(*) from filespaces where node_name
     in (select node_name from nodes where nodetype='CLIENT' group
     by node_name)
  
       Unnamed[1]
     ------------
               44
  
  This problem behavior is addressed by DB2 APAR IT13665:
  
     http://www-01.ibm.com/support/docview.wss?uid=swg1IT13665
  
  Versions Affected:
  IBM Spectrum Protect server versions 7.1.4 and higher.
  IBM Spectrum Protect server version 8.1.x is not affected by
  this problem.
  
  Initial Impact:
  Low
  

Local fix

• Do not use the IN or NOT IN clauses when issuing SELECT
  statements against the IBM Spectrum Protect server.
  
  The circumvention described in APAR IT13665 will resolve the
  problem behavior, but may adversely affect the performance of
  complex SQL queries.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * All Tivoli Storage Manager server users.                     *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See error description.                                       *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Apply fixing level when available. This problem is currently *
  * projected to be fixed in level 7.1.8. Note that this is      *
  * subject to change at the discretion of IBM.                  *
  ****************************************************************
  

Problem conclusion

• This problem was fixed.
  Affected platforms for reported release:  AIX, HP-UX, Solaris,
  Linux, and Windows.
  Platforms fixed:  AIX, HP-UX, Solaris, Linux, and Windows.
  

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:

Fix information

• Fixed component name

  TSM SERVER

• Fixed component ID

  5698ISMSV

Applicable component levels