tdas commented on a change in pull request #33093:
URL: https://github.com/apache/spark/pull/33093#discussion_r661561469
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/FlatMapGroupsWithStateExec.scala
##########
@@ -178,6 +257,47 @@ case class FlatMapGroupsWithStateExec(
}
}
+ /**
+ * Process the new data iterator along with the initial state. The initial
state is applied
+ * before processing the new data for every key. The user defined function
is called only
Review comment:
this is not quite right... user function is called only once for every
key that has either initial state or data or both.
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