cloud-fan commented on a change in pull request #29767:
URL: https://github.com/apache/spark/pull/29767#discussion_r491827460
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/streaming/DataStreamWriter.scala
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@@ -380,17 +381,44 @@ final class DataStreamWriter[T] private[sql](ds:
Dataset[T]) {
createV1Sink(optionsWithPath)
}
- df.sparkSession.sessionState.streamingQueryManager.startQuery(
- extraOptions.get("queryName"),
- extraOptions.get("checkpointLocation"),
- df,
- optionsWithPath.originalMap,
- sink,
- outputMode,
- useTempCheckpointLocation = source == "console" || source == "noop",
- recoverFromCheckpointLocation = true,
- trigger = trigger)
+ startQuery(sink, optionsWithPath.originalMap)
+ }
+ }
+
+ private def startQuery(
+ sink: Table,
+ newOptions: Map[String, String],
+ resultDf: Option[DataFrame] = None,
+ recoverFromCheckpoint: Boolean = true): StreamingQuery = {
+ val queryName = extraOptions.get("queryName")
+ val checkpointLocation = extraOptions.get("checkpointLocation")
+ val useTempCheckpointLocation =
SOURCES_ALLOW_ONE_TIME_QUERY.contains(source)
+
+ val query = df.sparkSession.sessionState.streamingQueryManager.startQuery(
+ queryName,
+ checkpointLocation,
+ df,
+ newOptions,
+ sink,
+ outputMode,
+ useTempCheckpointLocation = useTempCheckpointLocation,
+ recoverFromCheckpointLocation = recoverFromCheckpoint,
+ trigger = trigger)
+
+ resultDf.foreach { resDf => resDf.createOrReplaceTempView(query.name) }
Review comment:
only the in-memory sink passes in `resultDf`. Shall we register temp
view only in the `else if (source == "memory")` branch?
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