cloud-fan commented on code in PR #38793:
URL: https://github.com/apache/spark/pull/38793#discussion_r1034229052
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connector/connect/src/main/scala/org/apache/spark/sql/connect/planner/SparkConnectPlanner.scala:
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@@ -242,6 +243,17 @@ class SparkConnectPlanner(session: SparkSession) {
.logicalPlan
}
+ private def transformWithColumns(rel: proto.WithColumns): LogicalPlan = {
+ val (names, cols) =
+ rel.getNameExprListList.asScala
+ .map(e => (e.getName(0), Column(transformExpression(e.getExpr))))
Review Comment:
I think it's better to have server-side validation if it's not hard. Or we
can add a new proto message `MultiAlias` so that this is "type-safe".
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