hvanhovell commented on code in PR #40070:
URL: https://github.com/apache/spark/pull/40070#discussion_r1110347846
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connector/connect/client/jvm/src/main/scala/org/apache/spark/sql/RelationalGroupedDataset.scala:
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@@ -109,44 +109,131 @@ class RelationalGroupedDataset protected[sql] (
agg(exprs.asScala.toMap)
}
- private[this] def strToExpr(expr: String, inputExpr: proto.Expression):
proto.Expression = {
+ private[this] def strToExpr(expr: String, columnName: String):
proto.Expression = {
val builder = proto.Expression.newBuilder()
expr.toLowerCase(Locale.ROOT) match {
// We special handle a few cases that have alias that are not in
function registry.
case "avg" | "average" | "mean" =>
- builder.getUnresolvedFunctionBuilder
- .setFunctionName("avg")
- .addArguments(inputExpr)
- .setIsDistinct(false)
+ functions.avg(columnName)
Review Comment:
You currently don't return this function, but the result of builder.build().
If you do, it should be `functions.avg(columnName).expr`.
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