[SPARK-59640][SDP] SCD2 Ignore-null support; add version-map authorship operations - #58914
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AnishMahto wants to merge 18 commits into
Open
AnishMahto wants to merge 18 commits into
AnishMahto wants to merge 18 commits into
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@jose-torres for review. Pretty short (if you don't include tests or scaladocs!) and well contained PR. Version map APIs added are not yet actually used during reconciliation, but are all unit tested. They will be used in the next PR in the stack, which I will put up soon. |
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This is a stacked PR. See incremental diff here: AnishMahto/spark@SPARK-59183-populate-verison-map-at-ingest...SPARK-59640-scd2-version-map-authorship-operations.
See previous PR in stack here: #58645
What changes were proposed in this pull request?
Implement the operations that SCD2 ignore-null coalescing will need to use to interface with the version map to determine leaf authorship, lazy materialization on schema evolution, etc.
Why are the changes needed?
Interfaces needed for SCD2 ignore null coalescing (future PRs) to determine and update authorship information in a row's version map.
Does this PR introduce any user-facing change?
No.
How was this patch tested?
Unit tests added to
Scd2VersionMapSuite.Was this patch authored or co-authored using generative AI tooling?
Co-authored with GPT Sol 5.6.