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Posted to issues@spark.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2026/07/24 04:31:00 UTC

[jira] [Updated] (SPARK-57251) AutoCDC SCD2 Invalidated Reserved Framework Cols in Source/Column Selection

     [ https://issues.apache.org/jira/browse/SPARK-57251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated SPARK-57251:
-----------------------------------
    Labels: pull-request-available  (was: )

> AutoCDC SCD2 Invalidated Reserved Framework Cols in Source/Column Selection
> ---------------------------------------------------------------------------
>
>                 Key: SPARK-57251
>                 URL: https://issues.apache.org/jira/browse/SPARK-57251
>             Project: Spark
>          Issue Type: Sub-task
>          Components: Declarative Pipelines
>    Affects Versions: 4.3.0
>            Reporter: Anish Mahto
>            Priority: Major
>              Labels: pull-request-available
>
> Reserved framework columns in SCD2 are columns that will be projected onto the microbatch/target table by the core reconciliation algorithm, and therefore:
>  * The user's source dataframe should not contain columns with the same name, because they would get replaced or throw a name conflict error on reconciliation.
>  * The user should not be able to exclude these columns through target column selection via the AutoCDC API
> Validation should be done at `AutoCDCMergeFlow` construction time.



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