Hi , Here is example snippet in scala
// Convert to a Date typeval timestamp2datetype: (Column) => Column = (x) => { to_date(x) }df = df.withColumn("date", timestamp2datetype(col("end_date"))) Hope this helps ! Thanks, Divya On 28 March 2018 at 15:16, Junfeng Chen <darou...@gmail.com> wrote: > I am working on adding a date transformed field on existed dataset. > > The current dataset contains a column named timestamp in ISO format. I > want to parse this field to joda time type, and then extract the year, > month, day, hour info as new column attaching to original dataset. > I have tried df.withColumn function, but it seems only support simple > expression rather than customized function like MapFunction. > How to solve it? > > Thanks! > > > > Regard, > Junfeng Chen >