cloud-fan commented on code in PR #49372:
URL: https://github.com/apache/spark/pull/49372#discussion_r1907130292
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sql/core/src/main/scala/org/apache/spark/sql/SparkSession.scala:
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@@ -449,14 +449,10 @@ class SparkSession private(
var result: Option[Seq[Row]] = None
while (sse.hasNext) {
+ val df = sse.next()
Review Comment:
can we add some comments here to say that we have to collect results first
because `sse.hasNext` is not idempotent?
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