wangyum commented on pull request #29243:
URL: https://github.com/apache/spark/pull/29243#issuecomment-678111301
Yes. We should only infer the filter to partition column.
The DPP rule itself could not generate a filter on `code_stats.store_id`
because it should be after `PushDownPredicates`.
I add logic to `CleanupDynamicPruningFilters` to remove all filters with
`DynamicPruning` that are not filtered on the partition column.
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