amaliujia commented on code in PR #40070:
URL: https://github.com/apache/spark/pull/40070#discussion_r1110349585
##########
connector/connect/client/jvm/src/main/scala/org/apache/spark/sql/RelationalGroupedDataset.scala:
##########
@@ -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)
case "stddev" | "std" =>
- builder.getUnresolvedFunctionBuilder
- .setFunctionName("stddev")
- .addArguments(inputExpr)
- .setIsDistinct(false)
+ functions.stddev(columnName)
// Also special handle count because we need to take care count(*).
case "count" | "size" =>
- // Turn count(*) into count(1)
- inputExpr match {
- case s if s.hasUnresolvedStar =>
- val exprBuilder = proto.Expression.newBuilder
- exprBuilder.getLiteralBuilder.setInteger(1)
- builder.getUnresolvedFunctionBuilder
- .setFunctionName("count")
- .addArguments(exprBuilder)
- .setIsDistinct(false)
- case _ =>
- builder.getUnresolvedFunctionBuilder
- .setFunctionName("count")
- .addArguments(inputExpr)
- .setIsDistinct(false)
- }
+ functions.col(columnName)
case name =>
builder.getUnresolvedFunctionBuilder
.setFunctionName(name)
- .addArguments(inputExpr)
+ .addArguments(df(columnName).expr)
Review Comment:
Hold on that I will revert this part. It seems hit an issue somewhere if I
switch to use functions API. I need to understand more on the functions
implementation.
I will debug this separately.
--
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: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
