Github user icexelloss commented on a diff in the pull request: https://github.com/apache/spark/pull/18664#discussion_r144148579 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/arrow/ArrowUtils.scala --- @@ -31,7 +31,8 @@ object ArrowUtils { // todo: support more types. - def toArrowType(dt: DataType): ArrowType = dt match { + /** Maps data type from Spark to Arrow. NOTE: timeZoneId required for TimestampTypes */ + def toArrowType(dt: DataType, timeZoneId: Option[String]): ArrowType = dt match { --- End diff -- Btw, why don't we set default values for `timeZoneId`? Seems a bit weird having to specify `None` for other types.
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