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Posted to issues@spark.apache.org by "Andreas Neumann (Jira)" <ji...@apache.org> on 2026/07/22 17:29:00 UTC

[jira] [Created] (SPARK-58261) Support for SCD Type 2 in SQL syntax

Andreas Neumann created SPARK-58261:
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             Summary: Support for SCD Type 2 in SQL syntax
                 Key: SPARK-58261
                 URL: https://issues.apache.org/jira/browse/SPARK-58261
             Project: Spark
          Issue Type: Sub-task
          Components: Declarative Pipelines
    Affects Versions: 4.3.0
            Reporter: Andreas Neumann


To support SCD Type 2, SQL must allow:
- STORED AS SCD TYPE 2
- TRACK HISTORY ON (<column names> | * EXCEPT <column names>)

TRACK HISTORY is only allowed only for SCD2. 
Also, TRACK HISTORY must be the last clause in the AutoCdc command.




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