Hi, I think watermark does not work for StreamingSymmetricHashJoinExec because of the following:
1. leftKeys and rightKeys have no spark.watermarkDelayMs metadata entry at planning [1] 2. Since the left and right keys had no watermark delay at planning the code [2] won't find it at execution Is my understanding correct? If not, can you point me at examples with watermark on 1) join keys and 2) values ? Merci beaucoup. [1] https://github.com/apache/spark/blob/v3.0.0-preview/sql/core/src/main/scala/org/apache/spark/sql/execution/SparkStrategies.scala#L477-L478 [2] https://github.com/apache/spark/blob/v3.0.0-preview/sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/StreamingSymmetricHashJoinHelper.scala#L156-L164 Pozdrawiam, Jacek Laskowski ---- https://about.me/JacekLaskowski The Internals of Spark SQL https://bit.ly/spark-sql-internals The Internals of Spark Structured Streaming https://bit.ly/spark-structured-streaming The Internals of Apache Kafka https://bit.ly/apache-kafka-internals Follow me at https://twitter.com/jaceklaskowski
