Schema for type T1 is not supported

      java.lang.UnsupportedOperationException: Schema for type T1 is not supported
      at org.apache.spark.sql.catalyst.ScalaReflection$.$anonfun$schemaFor$1(ScalaReflection.scala:706)
      at scala.reflect.internal.tpe.TypeConstraints$UndoLog.undo(TypeConstraints.scala:68)
      at org.apache.spark.sql.catalyst.ScalaReflection.cleanUpReflectionObjects(ScalaReflection.scala:848)
      at org.apache.spark.sql.catalyst.ScalaReflection.cleanUpReflectionObjects$(ScalaReflection.scala:847)
      at org.apache.spark.sql.catalyst.ScalaReflection$.cleanUpReflectionObjects(ScalaReflection.scala:47)
      at org.apache.spark.sql.catalyst.ScalaReflection$.schemaFor(ScalaReflection.scala:634)
      at org.apache.spark.sql.catalyst.ScalaReflection$.$anonfun$deserializerFor$9(ScalaReflection.scala:346)
      at scala.collection.TraversableLike.$anonfun$map$1(TraversableLike.scala:237)
      at scala.collection.immutable.List.foreach(List.scala:392)
      at scala.collection.TraversableLike.map(TraversableLike.scala:237)
      at scala.collection.TraversableLike.map$(TraversableLike.scala:230)
      at scala.collection.immutable.List.map(List.scala:298)
      at org.apache.spark.sql.catalyst.ScalaReflection$.$anonfun$deserializerFor$1(ScalaReflection.scala:345)
      at scala.reflect.internal.tpe.TypeConstraints$UndoLog.undo(TypeConstraints.scala:68)
      at org.apache.spark.sql.catalyst.ScalaReflection.cleanUpReflectionObjects(ScalaReflection.scala:848)
      at org.apache.spark.sql.catalyst.ScalaReflection.cleanUpReflectionObjects$(ScalaReflection.scala:847)
      at org.apache.spark.sql.catalyst.ScalaReflection$.cleanUpReflectionObjects(ScalaReflection.scala:47)
      at org.apache.spark.sql.catalyst.ScalaReflection$.deserializerFor(ScalaReflection.scala:184)
      at org.apache.spark.sql.catalyst.ScalaReflection$.$anonfun$deserializerForType$1(ScalaReflection.scala:169)
      at org.apache.spark.sql.catalyst.DeserializerBuildHelper$.deserializerForWithNullSafetyAndUpcast(DeserializerBuildHelper.scala:54)
      at org.apache.spark.sql.catalyst.ScalaReflection$.deserializerForType(ScalaReflection.scala:169)
      at org.apache.spark.sql.catalyst.encoders.ExpressionEncoder$.apply(ExpressionEncoder.scala:55)
      at org.apache.spark.sql.Encoders$.product(Encoders.scala:289)
      at org.apache.spark.sql.LowPrioritySQLImplicits.newProductEncoder(SQLImplicits.scala:253)
      at org.apache.spark.sql.LowPrioritySQLImplicits.newProductEncoder$(SQLImplicits.scala:253)
      at org.apache.spark.sql.SQLImplicits.newProductEncoder(SQLImplicits.scala:34)
      at org.apache.spark.sql.execution.SQLExecutionSuite.$anonfun$new$3(SQLExecutionSuite.scala:50)
      at scala.runtime.java8.JFunction1$mcJI$sp.apply(JFunction1$mcJI$sp.java:23)
      at scala.Function1.apply$mcVI$sp(Function1.scala:41)
      at scala.collection.parallel.immutable.ParRange$ParRangeIterator.foreach(ParRange.scala:94)
      at scala.collection.parallel.ParIterableLike$Foreach.leaf(ParIterableLike.scala:974)
      at scala.collection.parallel.Task.$anonfun$tryLeaf$1(Tasks.scala:53)
      at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
      at scala.util.control.Breaks$$anon$1.catchBreak(Breaks.scala:67)
      at scala.collection.parallel.Task.tryLeaf(Tasks.scala:56)
      at scala.collection.parallel.Task.tryLeaf$(Tasks.scala:50)
      at scala.collection.parallel.ParIterableLike$Foreach.tryLeaf(ParIterableLike.scala:971)
      at scala.collection.parallel.AdaptiveWorkStealingTasks$WrappedTask.internal(Tasks.scala:160)
      at scala.collection.parallel.AdaptiveWorkStealingTasks$WrappedTask.internal$(Tasks.scala:157)
      at scala.collection.parallel.AdaptiveWorkStealingForkJoinTasks$WrappedTask.internal(Tasks.scala:440)
      at scala.collection.parallel.AdaptiveWorkStealingTasks$WrappedTask.compute(Tasks.scala:150)
      at scala.collection.parallel.AdaptiveWorkStealingTasks$WrappedTask.compute$(Tasks.scala:149)
      at scala.collection.parallel.AdaptiveWorkStealingForkJoinTasks$WrappedTask.compute(Tasks.scala:440)
      at java.base/java.util.concurrent.RecursiveAction.exec(RecursiveAction.java:189)
      at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:290)
      at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1020)
      at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1656)
      at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1594)
      at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:177)