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SS-148 Iceberg sink, don't attempt commit unless it's definitely not a duplicate - #38441

Merged

ublubu merged 12 commits into

MaterializeInc:mainfrom

ublubu:iceberg-retry

Sep 15, 2026

Commits on Sep 14, 2026
- SS-148 repro from Dennis
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  6178ed5
- Claude: test case polls instead of sleeping
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  65c8c78
- Claude: test case, iceberg-rust still commits over newer writer
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  4a0cbc0
- Claude: bypass iceberg-rust Txn::commit. sink handles retries.
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  bff588a
- human rewrite
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  3eaa5e0
- check sink ID also
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  d573ece
- count commits that failed before reaching the catalog
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  140290b
- update comment about writer fencing test
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  6d0d967
- Claude: minor review fixes
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  69c7980
- Claude: test for overlapping writers with different commit intervals
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  a60afe2
- Check that already committed frontier does not contain pending batch.
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  34cc35f
Commits on Sep 15, 2026
- fix broken formatting in iceberg nightly test
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  9a8c0ae