parthchandra opened a new issue, #5342:
URL: https://github.com/apache/datafusion-comet/issues/5342
### What is the problem the feature request solves?
Follow up for #5323
The grouping report (reportPartitioning.enabled) ships off by default
until we've covered more of Spark's storage-partitioned-join paths. Add tests
for:
- a heavily skewed key, so the replicate path actually runs (not just
empty-partition padding);
- different bucket counts per side (e.g. bucket(8) vs bucket(4)), so Spark
inserts a partition reducer and the Comet scan must match the reduced grouping;
- three-way and self joins on the same key.
Once these tests pass, then we can flip `reportPartitioning.enabled` on by
default
### Describe the potential solution
_No response_
### Additional context
_No response_
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