wangyum commented on code in PR #37104: URL: https://github.com/apache/spark/pull/37104#discussion_r916897153
########## sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala: ########## @@ -3024,12 +3024,15 @@ object SQLConf { val TOP_K_SORT_FALLBACK_THRESHOLD = buildConf("spark.sql.execution.topKSortFallbackThreshold") - .doc("In SQL queries with a SORT followed by a LIMIT like " + + .doc("In SQL queries with a SORT followed by a LIMIT or maximum number of rows exists like " + "'SELECT x FROM t ORDER BY y LIMIT m', if m is under this threshold, do a top-K sort" + " in memory, otherwise do a global sort which spills to disk if necessary.") .version("2.4.0") .intConf - .createWithDefault(ByteArrayMethods.MAX_ROUNDED_ARRAY_LENGTH) + .checkValue(_ <= ByteArrayMethods.MAX_ROUNDED_ARRAY_LENGTH, + "The top-K sort fallback threshold should be less than or equal to " + + s"${ByteArrayMethods.MAX_ROUNDED_ARRAY_LENGTH}.") + .createWithDefault(5000000) Review Comment: New PR: https://github.com/apache/spark/pull/37140 -- 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