Kimahriman commented on code in PR #52642:
URL: https://github.com/apache/spark/pull/52642#discussion_r2477469547
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sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/runtime/MicroBatchExecution.scala:
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@@ -344,9 +344,40 @@ class MicroBatchExecution(
setLatestExecutionContext(execCtx)
populateStartOffsets(execCtx, sparkSessionForStream)
+
+ // SPARK-53941: This code path is executed for the first batch, regardless
of whether it's a
+ // fresh new run or restart.
+ disableAQESupportInStatelessIfUnappropriated(sparkSessionForStream)
Review Comment:
No that's the case I'm talking about. A common use case for us is a stateful
stream with a FEB to merge into a delta table, and enabling AQE inside the
batch helps with the merge performance
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