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JR42022: IGNORE UNCHANGED LOB/XML FOR UPDATES USING EXISTING MODIFIED OFFSET IN P2P ONLY

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APAR status

  • Closed as program error.

Error description

  • Ignore unchanged LOB/XML for UPDATEs using existing modified
    offset in P2P only.
    

Local fix

Problem summary

  • Problem Description: LOB/XML columns are updated at the
    target even if they were not changed at the source in P2P
    subscriptions and Bidir/Unidir subscriptions with
    conflict_action F.
    .
    User Affected: QCAPTURE / QAPPLY
    .
    Problem Summary: LOB/XML columns are unnecessarily
    updated at the target even if the actual data was not
    updated with the same change at the source. For example,
    a non-key non-LOB/XML update at the source would result
    in an update of non-key non-LOB/XML column as well as all
    LOB/XML columns in the table. This is caused by Apply's
    inability to determine if the LOB/XML value was changed
    at the source. LOB/XML values are always sent by Capture
    to resolve possible conflicts. For non-LOB/XML columns
    Apply can determine whether or not these columns have
    been updated at the source.
    .
    Problem Conclusion: Apply is able to determine if a
    LOB/XML column was updated at the source. If it was not
    updated the LOB/XML column is not included in the update
    at the target.
    

Problem conclusion

  • The problem has been fixed and will be available in
    DB2 LUW V9.5 FP9.
    

Temporary fix

Comments

APAR Information

  • APAR number

    JR42022

  • Reported component name

    WS Q-REPLIC LUW

  • Reported component ID

    5724N9801

  • Reported release

    950

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-02-22

  • Closed date

    2012-02-22

  • Last modified date

    2012-02-22

  • 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

    WS Q-REPLIC LUW

  • Fixed component ID

    5724N9801

Applicable component levels

  • R950 PSY

       UP

[{"Business Unit":{"code":"BU050","label":"BU NOT IDENTIFIED"},"Product":{"code":"SSDP5R","label":"InfoSphere Replication Server"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"9.5","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}]

Document Information

Modified date:
22 February 2012