ueshin opened a new pull request, #49449:
URL: https://github.com/apache/spark/pull/49449
### What changes were proposed in this pull request?
Fixes `SparkConnectPlanner` to analyze the inputs for typed aggregations.
### Why are the changes needed?
The inputs for typed aggregations should be analyzed.
For example:
```scala
val ds = Seq("abc", "xyz", "hello").toDS().select("*").as[String]
ds.groupByKey(_.length).reduceGroups(_ + _).show()
```
fails with:
```
org.apache.spark.SparkException: [INTERNAL_ERROR] Invalid call to
toAttribute on unresolved object SQLSTATE: XX000
org.apache.spark.sql.catalyst.analysis.Star.toAttribute(unresolved.scala:439)
org.apache.spark.sql.catalyst.plans.logical.Project.$anonfun$output$1(basicLogicalOperators.scala:74)
scala.collection.immutable.List.map(List.scala:247)
scala.collection.immutable.List.map(List.scala:79)
org.apache.spark.sql.catalyst.plans.logical.Project.output(basicLogicalOperators.scala:74)
org.apache.spark.sql.connect.planner.SparkConnectPlanner.transformExpressionWithTypedReduceExpression(SparkConnectPlanner.scala:2340)
org.apache.spark.sql.connect.planner.SparkConnectPlanner.$anonfun$transformKeyValueGroupedAggregate$1(SparkConnectPlanner.scala:2244)
scala.collection.immutable.List.map(List.scala:247)
scala.collection.immutable.List.map(List.scala:79)
org.apache.spark.sql.connect.planner.SparkConnectPlanner.transformKeyValueGroupedAggregate(SparkConnectPlanner.scala:2244)
org.apache.spark.sql.connect.planner.SparkConnectPlanner.transformAggregate(SparkConnectPlanner.scala:2232)
...
```
### Does this PR introduce _any_ user-facing change?
The failure will not appear.
### How was this patch tested?
Added the related tests.
### Was this patch authored or co-authored using generative AI tooling?
No.
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