Github user maropu commented on a diff in the pull request: https://github.com/apache/spark/pull/20306#discussion_r162263815 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Cast.scala --- @@ -838,6 +839,7 @@ case class Cast(child: Expression, dataType: DataType, timeZoneId: Option[String |$evPrim = $buffer.build(); """.stripMargin } + case pudt: PythonUserDefinedType => castToStringCode(pudt.sqlType, ctx) --- End diff -- The second one (Deserializing the catalyst value to customer object and call toString). See: https://github.com/apache/spark/blob/master/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Cast.scala#L286
--- --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org