cloud-fan commented on code in PR #47856:
URL: https://github.com/apache/spark/pull/47856#discussion_r2297038532
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sql/core/src/main/scala/org/apache/spark/sql/execution/ExternalAppendOnlyUnsafeRowArray.scala:
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@@ -138,6 +142,7 @@ private[sql] class ExternalAppendOnlyUnsafeRowArray(
initialSize,
pageSizeBytes,
numRowsSpillThreshold,
+ maxSizeSpillThreshold,
Review Comment:
looking at this `def add` method, it trigger spilling only if the num rows
exceeds `numRowsInMemoryBufferThreshold`. IIUC we are not using memory-based
threshold here, as we keep appending data to a memory buffer based on the num
rows threshold.
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