szehon-ho opened a new pull request, #46325:
URL: https://github.com/apache/spark/pull/46325
### What changes were proposed in this pull request?
If spark.sql.v2.bucketing.allowJoinKeysSubsetOfPartitionKeys.enabled is
true, change KeyGroupedPartitioning.satisfies0(distribution) check from all
clustering keys (here, join keys) being in partition keys, to the two sets
overlapping.
### Why are the changes needed?
If spark.sql.v2.bucketing.allowJoinKeysSubsetOfPartitionKeys.enabled is
true, then SPJ no longer triggers if there are more join keys than partition
keys. But SPJ is supported in this case if flag is false.
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
Added tests in KeyGroupedPartitioningSuite
### Was this patch authored or co-authored using generative AI tooling?
No
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