viirya commented on code in PR #52502:
URL: https://github.com/apache/spark/pull/52502#discussion_r2431344140
##########
sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/runtime/memory.scala:
##########
@@ -158,6 +158,20 @@ case class MemoryStream[A : Encoder](
id: Int,
sqlContext: SQLContext,
numPartitions: Option[Int] = None)
+ extends MemoryStreamBaseClass[A](
+ id, sqlContext, numPartitions = numPartitions)
+
+/**
+ * A [[Source]] that produces value stored in memory as they are added by the
user. This [[Source]]
+ * is intended for use in unit tests as it can only replay data when the
object is still
+ * available.
+ *
+ * If numPartitions is provided, the rows will be redistributed to the given
number of partitions.
+ */
Review Comment:
Hm, this doc is same and copied from `MemoryStream`. Do we need to update
the doc of `MemoryStream` so it can be more specified or reflect the difference
between it and LowLatencyMemoryStream?
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