[SPARK-48155][SQL] AQEPropagateEmptyRelation for join should check if remain child is just BroadcastQueryStageExec #46523
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What changes were proposed in this pull request?
It's a new approach to fix SPARK-39551
This situation happened for AQEPropagateEmptyRelation when one side is empty and one side is BroadcastQueryStateExec
This pr avoid do propagate, not to revert all queryStagePreparationRules's result.
Why are the changes needed?
Fix bug
Does this PR introduce any user-facing change?
No
How was this patch tested?
Manuel tested
SPARK-39551: Invalid plan check - invalid broadcast query stage
, it can work well without origin fix and current prFor added UT,
before this pr the adaptive plan is
After this patch
Was this patch authored or co-authored using generative AI tooling?
No