amaliujia commented on code in PR #40070:
URL: https://github.com/apache/spark/pull/40070#discussion_r1110375466
##########
connector/connect/client/jvm/src/main/scala/org/apache/spark/sql/Dataset.scala:
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@@ -2065,6 +2065,15 @@ class Dataset[T] private[sql] (val session:
SparkSession, private[sql] val plan:
collectResult().iterator.asInstanceOf[java.util.Iterator[T]]
}
+ /**
+ * Returns the number of rows in the Dataset.
+ * @group action
+ * @since 3.4.0
+ */
+ def count(): Long = {
+ groupBy().count().collect().head.getLong(0)
Review Comment:
In my local branch that I rebased today, there is no this API.
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