Minor Description
In the current master, ScriptTransformation doesn't work with timestamp_ntz values.
spark.sql("SELECT transform(col1) USING 'cat' AS (col1 timestamp_ntz) FROM VALUES timestamp_ntz'2021-09-06 20:19:13' t").show(false) 21/09/06 22:03:55 ERROR Executor: Exception in task 0.0 in stage 0.0 (TID 0) org.apache.spark.SparkException: SparkScriptTransformation without serde does not support TimestampNTZType$ as output data type at org.apache.spark.sql.errors.QueryExecutionErrors$.outputDataTypeUnsupportedByNodeWithoutSerdeError(QueryExecutionErrors.scala:1740) at org.apache.spark.sql.execution.BaseScriptTransformationExec.$anonfun$outputFieldWriters$1(BaseScriptTransformationExec.scala:245) at scala.collection.immutable.List.map(List.scala:293) at org.apache.spark.sql.execution.BaseScriptTransformationExec.org$apache$spark$sql$execution$BaseScriptTransformationExec$$outputFieldWriters(BaseScriptTransformationExec.scala:194) at org.apache.spark.sql.execution.BaseScriptTransformationExec.org$apache$spark$sql$execution$BaseScriptTransformationExec$$outputFieldWriters$(BaseScriptTransformationExec.scala:194) at org.apache.spark.sql.execution.SparkScriptTransformationExec.org$apache$spark$sql$execution$BaseScriptTransformationExec$$outputFieldWriters$lzycompute(SparkScriptTransformationExec.scala:38) at org.apache.spark.sql.execution.SparkScriptTransformationExec.org$apache$spark$sql$execution$BaseScriptTransformationExec$$outputFieldWriters(SparkScriptTransformationExec.scala:38) at org.apache.spark.sql.execution.BaseScriptTransformationExec$$anon$1.$anonfun$processRowWithoutSerde$1(BaseScriptTransformationExec.scala:121) at org.apache.spark.sql.execution.BaseScriptTransformationExec$$anon$1.next(BaseScriptTransformationExec.scala:162) at org.apache.spark.sql.execution.BaseScriptTransformationExec$$anon$1.next(BaseScriptTransformationExec.scala:113)
