Github user goungoun commented on the issue:
https://github.com/apache/spark/pull/20800
For additional check that I mentioned. The following code shows that Spark
users does not need to add take(1). ds.rdd.take(1).isEmpty is redundant.
[RDD.scala](https://github.com/apache/spark/blob/master/core/src/main/scala/org/apache/spark/rdd/RDD.scala)
`def isEmpty(): Boolean = withScope {
partitions.length == 0 || take(1).length == 0
}`
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