feat: Add local Iceberg materialization sink - #6747
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Signed-off-by: HaoXuAI <sduxuhao@gmail.com>
Signed-off-by: HaoXuAI <sduxuhao@gmail.com>
Signed-off-by: HaoXuAI <sduxuhao@gmail.com>
Signed-off-by: HaoXuAI <sduxuhao@gmail.com>
Signed-off-by: HaoXuAI <sduxuhao@gmail.com>
Signed-off-by: HaoXuAI <sduxuhao@gmail.com>
Signed-off-by: HaoXuAI <sduxuhao@gmail.com>
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Codecov Report❌ Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## master #6747 +/- ##
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- Coverage 47.09% 47.04% -0.05%
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Files 419 419
Lines 51878 51977 +99
Branches 7525 7541 +16
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+ Hits 24430 24453 +23
- Misses 25700 25776 +76
Partials 1748 1748
... and 2 files with indirect coverage changes Continue to review full report in Codecov by Harness.
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HaoXuAI
marked this pull request as ready for review
August 22, 2026 17:50
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What changed
IcebergSourceWhy
Feast could read Iceberg sources, but local materialization could not persist results back to Iceberg. This adds a local-compute sink path so derived feature data can be maintained in Iceberg with idempotent upsert semantics.
Impact
Users can configure an
IcebergSourceas the effective batch source of a derived feature view and have local materialization upsert rows using mapped entity join keys plus the event timestamp. Existing online and offline materialization behavior remains unchanged.Validation
The broader repository unit run reached 2,469 passes. Three existing tests in unchanged on-demand transformation and SQLite paths still fail locally; the failures do not enter the Iceberg sink code. The pre-push
lint-pushwrapper was skipped because itsuv runresolves incompatible unrelatedciandflinkextras; the underlying lint and type checks were run directly and passed.