dc0709fa0c
### What changes were proposed in this pull request? This is a followup of https://github.com/apache/spark/pull/26589, which caches the table relations to speed up the table lookup. However, it brings some side effects: the rule `ResolveRelations` may return exactly the same relations, while before it always returns relations with fresh attribute IDs. This PR is to eliminate this side effect. ### Why are the changes needed? There is no bug report yet, but this side effect may impact things like self-join. It's better to restore the 2.4 behavior and always return refresh relations. ### Does this PR introduce _any_ user-facing change? no ### How was this patch tested? N/A Closes #28717 from cloud-fan/fix. Authored-by: Wenchen Fan <wenchen@databricks.com> Signed-off-by: Wenchen Fan <wenchen@databricks.com> |
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