Github user viirya commented on a diff in the pull request:
https://github.com/apache/spark/pull/22749#discussion_r226846925
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/encoders/ExpressionEncoder.scala
---
@@ -43,10 +44,11 @@ import org.apache.spark.util.Utils
* to the name `value`.
*/
object ExpressionEncoder {
+
def apply[T : TypeTag](): ExpressionEncoder[T] = {
- // We convert the not-serializable TypeTag into StructType and
ClassTag.
val mirror = ScalaReflection.mirror
- val tpe = typeTag[T].in(mirror).tpe
+ val tpe = ScalaReflection.localTypeOf[T]
--- End diff --
I think it should be fine, but let me revert this change first.
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