HeartSaVioR commented on code in PR #40215: URL: https://github.com/apache/spark/pull/40215#discussion_r1127778137
########## docs/structured-streaming-programming-guide.md: ########## @@ -1848,12 +1848,137 @@ Additional details on supported joins: - As of Spark 2.4, you can use joins only when the query is in Append output mode. Other output modes are not yet supported. -- As of Spark 2.4, you cannot use other non-map-like operations before joins. Here are a few examples of - what cannot be used. +- You cannot use mapGroupsWithState and flatMapGroupsWithState before and after joins. - - Cannot use streaming aggregations before joins. +In append output mode, you can construct a query having non-map-like operations before/after join. Review Comment: Sounds better. I'll list some operations here. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org
