rdtr opened a new pull request, #56105:
URL: https://github.com/apache/spark/pull/56105
Description:
## Summary
- Widen 3 read-only pattern match sites in
`DisableUnnecessaryBucketedScan` and `CoalesceBucketsInJoin` from concrete
`FileSourceScanExec` to the `FileSourceScanLike` trait
- Two match sites that call `.copy()` are intentionally left on
`FileSourceScanExec`
- Enables third-party columnar plugins (Gluten, Comet, RAPIDS) to be
recognized by bucketing optimization rules
## Test plan
- [ ] Existing bucketing test suites pass (no behavioral change for
vanilla Spark since `FileSourceScanExec` already extends `FileSourceScanLike`)
- [ ] Verified all accessed fields (`bucketedScan`, `relation`,
`optionalNumCoalescedBuckets`) are declared on the `FileSourceScanLike` trait
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