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[MINOR][R] Match collectAsArrowToR with non-streaming collectAsArrowToPython #29100

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[MINOR][R] Match collectAsArrowToR with non-streaming collectAsArrowToPython #29100

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2 changes: 1 addition & 1 deletion sql/core/src/main/scala/org/apache/spark/sql/Dataset.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -3587,7 +3587,7 @@ class Dataset[T] private[sql](
val numPartitions = arrowBatchRdd.partitions.length

// Store collection results for worst case of 1 to N-1 partitions
val results = new Array[Array[Array[Byte]]](numPartitions - 1)
val results = new Array[Array[Array[Byte]]](Math.max(0, numPartitions - 1))
var lastIndex = -1 // index of last partition written

// Handler to eagerly write partitions to Python in order
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