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Posted to issues@spark.apache.org by "Anish Mahto (Jira)" <ji...@apache.org> on 2026/10/08 23:27:00 UTC

[jira] [Created] (SPARK-60097) SCD1 Ignore-null support; define version map construction

Anish Mahto created SPARK-60097:
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             Summary: SCD1 Ignore-null support; define version map construction
                 Key: SPARK-60097
                 URL: https://issues.apache.org/jira/browse/SPARK-60097
             Project: Spark
          Issue Type: Sub-task
          Components: Declarative Pipelines
    Affects Versions: 4.4.0
            Reporter: Anish Mahto


Concretely define the contract for the _contents_ of the version map; the format must the keys be presented in, and what the stored sequence represents when null or not null.

Then implement the logic to construct a version map column expression as per the contract, given an upsert-representing row. Delete-representing rows do not require any equivalent operation, as they will always hold null version maps.



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