wangyum opened a new pull request #26600: [SPARK-29962][SQL] Avoid changing SMJ to BHJ if one side is non-shuffle and the other side can be broadcast URL: https://github.com/apache/spark/pull/26600 ### What changes were proposed in this pull request? This PR makes it avoid changing `SMJ` to `BHJ` if one side is non-shuffle and the other side can be broadcast because `SMJ` if faster than `BHJ` in this case: **BroadcastJoin**:  **SortMergeJoin**:  ### Why are the changes needed? Adaptive query execution should not degrade performance. ### Does this PR introduce any user-facing change? No. ### How was this patch tested? Unit test
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