PH36328: ALLOW TO REQUEST THAT THE LOAD COMMAND GENERATED FOR AN UNLOAD IN SQL MODE SPECIFIES THE DATA UNLOADED FROM THE ROWID COLUMNS

Obtain the fix for this APAR.

APAR status

• Closed as new function.

Error description

• As designed, the LOAD command generated for a logical unload
  involving a a ROWID GENERATED ALWAYS column processed in SQL
  mode when the unload is run in SQL mode (either the DB2 FORCE
  option is specified or the SELECT statement is not supported)
  may request the ROWID column be loaded from the field from the
  input dataset instead of being  automatically populated by the
  LOAD utility. This occurs regardless of the setting for the
  "Technique to generate SYSIN for identity column
  (VUU058/ULIDENT)" parmlib parameter that only applies to the
  native mode.
  In SQL mode, Db2 HPU can usually not determine if a ROWID column
  has the GENERATED ALWAYS attribute and, as in most of the cases,
  it is relevant to let the LOAD utility generate a value for
  identity columns, Db2 HPU should be fitted with a way to request
  the data unloaded from the identity columns be ignored by the
  LOAD utility by not using the genuine column name for the
  related field description and specifying the IGNOREFIELDS option
  whenever the GENERATED ALWAYS attribute of a ROWID column
  involved in the unload cannot be determined.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of Db2 High Performance Unload         *
  *                 for z/OS                                     *
  ****************************************************************
  * PROBLEM DESCRIPTION: As designed, the LOAD command generated *
  *                      for a logical unload involving a ROWID  *
  *                      GENERATED ALWAYS column processed in    *
  *                      SQL mode when the unload is run in SQL  *
  *                      mode (either the DB2 FORCE option is    *
  *                      specified or the SELECT statement is    *
  *                      not supported) may request the ROWID    *
  *                      column be loaded from the field from    *
  *                      the input dataset instead of being      *
  *                      automatically populated by the LOAD     *
  *                      utility. This occurs regardless of the  *
  *                      setting for the "Technique to generate  *
  *                      SYSIN for identity column               *
  *                      (VUU058/ULIDENT)" parmlib parameter     *
  *                      that only pplies to the native mode.    *
  *                                                              *
  *                      In SQL mode, Db2 HPU can usually not    *
  *                      determine if a ROWID column has the     *
  *                      GENERATED ALWAYS attribute and, as in   *
  *                      most of the cases, it is relevant to    *
  *                      let the LOAD utility generate a value   *
  *                      for identity columns, Db2 HPU should be *
  *                      fitted with a way to request the data   *
  *                      unloaded from the identity columns be   *
  *                      ignored by the LOAD utility by not      *
  *                      using the genuine column name for the   *
  *                      related field description and           *
  *                      specifying the IGNOREFIELDS option      *
  *                      whenever the GENERATED ALWAYS attribute *
  *                      of a ROWID column involved in the       *
  *                      unload cannot be determined.            *
  ****************************************************************
  * RECOMMENDATION: Apply the PTF                                *
  ****************************************************************
  Allow to request that the LOAD command generated for an unload
  in SQL mode requests the data unloaded from the ROWID columns be
  ignored by the LOAD utility.
  

Problem conclusion

• Code has been changed to fix this 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

• INZ$$PRM INZTDSC  INZTVAR  INZUTILK
  

Fix information

• Fixed component name

  DB2 HI PERF UNL

• Fixed component ID

  5697F4400

Applicable component levels

• R510 PSY UI75101

     UP21/05/07 P F105

Fix is available

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