rangadi commented on code in PR #40845:
URL: https://github.com/apache/spark/pull/40845#discussion_r1171850573
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sql/core/src/main/scala/org/apache/spark/sql/streaming/StreamingQueryListener.scala:
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@@ -55,6 +55,12 @@ abstract class StreamingQueryListener {
*/
def onQueryProgress(event: QueryProgressEvent): Unit
+ /**
+ * Called when the query is idle for a certain time period and waiting for
new data to process.
+ * @since 3.5.0
+ */
+ def onQueryIdle(event: QueryIdleEvent): Unit = {}
Review Comment:
I am not clear on the motivation for this still. I haven't fully understood
the problem with onQueryProgress().
In any case, should the default implementation call onQueryProgress() and
that would avoid changing behavior for those not implementing this .
Or may be add 'isIdle' flag to progress?
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