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Posted to issues@spark.apache.org by "Anish Mahto (Jira)" <ji...@apache.org> on 2026/09/03 16:59:00 UTC

[jira] [Created] (SPARK-59208) SCD2 Ignore-null support; Introduce ignore-null selection in `ChangeArgs`

Anish Mahto created SPARK-59208:
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             Summary: SCD2 Ignore-null support; Introduce ignore-null selection in `ChangeArgs`
                 Key: SPARK-59208
                 URL: https://issues.apache.org/jira/browse/SPARK-59208
             Project: Spark
          Issue Type: Sub-task
          Components: Declarative Pipelines
    Affects Versions: 4.4.0
            Reporter: Anish Mahto


`ChangeArgs` holds all of the user-specified configurations (arguments) that should apply to their AutoCDC flow by execution time.

Ignore-null is a new AutoCDC argument that allows users to specify a set of columns that AutoCDC should treat as unauthored by an event when they receive a null-value in that event. 

We need to represent this selection in `ChangeArgs` so that AutoCDC batch processors can later reference it, and validate that the columns selected indeed exist and are eligible for selection. Ex. a key column or reserved AutoCDC column may never be specified as ignore-null.



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