Anish Mahto created SPARK-60266:
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Summary: SCD1 Ignore-null support; Apply persisted tombstones per
field
Key: SPARK-60266
URL: https://issues.apache.org/jira/browse/SPARK-60266
Project: Spark
Issue Type: Sub-task
Components: Declarative Pipelines
Affects Versions: 4.4.0
Reporter: Anish Mahto
Apply persisted tombstones per field during SCD1 ignore-null reconciliation.
Before a microbatch is merged, each key's resolved row is dropped if it
predates the key's tombstone. Today this check is row-wide, but under
ignore-null, leaf-level reconciliation lets different events author different
fields of one row, so a tombstone may supersede only some.
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