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https://issues.apache.org/jira/browse/SPARK-59786?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated SPARK-59786:
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Labels: pull-request-available (was: )
> SCD1 Ignore-null support; Populate version map per event row at ingest
> ----------------------------------------------------------------------
>
> Key: SPARK-59786
> URL: https://issues.apache.org/jira/browse/SPARK-59786
> Project: Spark
> Issue Type: Sub-task
> Components: Declarative Pipelines
> Affects Versions: 4.4.0
> Reporter: Anish Mahto
> Priority: Major
> Labels: pull-request-available
>
> When processing an incoming microbatch, if ignore-null is enabled for the
> AutoCDC flow, a non-null version map is populated for every upsert row.
> Delete rows retain a null version map and are handled as row-wide authorship
> during later reconciliation.
> Per the version-map contract documented in `Scd1VersionMap`, the map contains
> authorship information for every non-key user-data leaf in the target-aligned
> row. This ticket stamps each upsert independently, using only that row’s
> values and sequencing value.
> This ticket does not reconcile microbatch version maps with existing
> auxiliary or target-table state, nor does it reconcile multiple microbatch
> rows targeting the same key.
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