zhengruifeng commented on code in PR #38973: URL: https://github.com/apache/spark/pull/38973#discussion_r1043095105
########## connector/connect/common/src/main/protobuf/spark/connect/relations.proto: ########## @@ -570,3 +571,21 @@ message Hint { // (Optional) Hint parameters. repeated Expression.Literal parameters = 3; } + +// Unpivot a DataFrame from wide format to long format, optionally leaving identifier columns set. +message Melt { Review Comment: since `melt` == `unpivot`, and `Unpivot` is just a logical plan, so I suggest renaming it as `Unpivot` -- 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