unikdahal opened a new pull request, #5320:
URL: https://github.com/apache/datafusion-comet/pull/5320
## Which issue does this PR close?
Closes #5319.
## Rationale for this change
Iceberg's `MERGE`/`UPDATE`/`DELETE` target tables scan through
`SparkCopyOnWriteScan`, which
extends the same `SparkPartitioningAwareScan` base as the already-supported
`SparkBatchQueryScan`
but wasn't in Comet's recognized scan set, so it always fell back to Spark.
## What changes are included in this PR?
Add `SparkCopyOnWriteScan` to `IcebergReflection.ICEBERG_SCAN_CLASSES`.
## How are these changes tested?
verified manually against a real Iceberg REST catalog.
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