xupefei commented on code in PR #46849:
URL: https://github.com/apache/spark/pull/46849#discussion_r1630945022
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connector/connect/client/jvm/src/main/scala/org/apache/spark/sql/expressions/Aggregator.scala:
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@@ -52,7 +56,7 @@ import org.apache.spark.sql.{Encoder, TypedColumn}
* @since 4.0.0
*/
@SerialVersionUID(2093413866369130093L)
-abstract class Aggregator[-IN, BUF, OUT] extends Serializable {
+abstract class Aggregator[-IN: TypeTag, BUF, OUT] extends Serializable {
Review Comment:
I reverted this change and switched to use reflection. The new method is
hacky but should work in all cases.
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