amaliujia commented on code in PR #38631: URL: https://github.com/apache/spark/pull/38631#discussion_r1020563219
########## connector/connect/src/main/scala/org/apache/spark/sql/connect/planner/SparkConnectPlanner.scala: ########## @@ -334,7 +334,11 @@ class SparkConnectPlanner(session: SparkSession) { } private def transformAlias(alias: proto.Expression.Alias): NamedExpression = { - Alias(transformExpression(alias.getExpr), alias.getName)() + if (alias.getNameCount == 1) { + Alias(transformExpression(alias.getExpr), alias.getName(0))() + } else { + MultiAlias(transformExpression(alias.getExpr), alias.getNameList.asScala.toSeq) Review Comment: I actually expect Scala client will re-use Connect DSL. if you take a closer look, Connect DSL is DataFrame like internal API that offers `toProto` logic (equivalent to `plan.py` for python). Anything adding to the DSL will not only help testing coverage but also help Scala client potentially. -- 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