If it does not return a column you expect, then what does this return ? Do
you will have 2 columns with the same column name ?
On Sun, Dec 20, 2015 at 7:40 PM, Eran Witkon <eranwit...@gmail.com> wrote:
> Hi,
>
> I am a bit confused with dataframe operations.
> I have a function which takes a string and returns a string
> I want to apply this functions on all rows on a single column in my
> dataframe
>
> I was thinking of the following:
> jsonData.withColumn("computedField",computeString(jsonData("hse")))
>
> BUT jsonData("hse") return a column not the row data
> What am I missing here?
>
--
Best Regards
Jeff Zhang
