Hi Alberto,
if you want to read a single column you have to wrap it in a Tuple1:
val text4 = env.readCsvFile[Tuple1[String]]("file:data.csv"
,includedFields = Array(1))
Best, Fabian
2016-10-06 20:59 GMT+02:00 Alberto Ramón <a.ramonporto...@gmail.com>:
> I'm learning readCsvFile
> (I discover if the file ends on "/n", you will return a null exception)
>
> *if I try to read only 1 column *
>
> val text4 = env.readCsvFile[String]("file:data.csv" ,includedFields =
> Array(1))
>
> The error is: he type String has to be a tuple or pojo type. [null]
>
>
>
>
> *If I put > 1 column; (*1º and 2º in this case*)*
>
> val text4 = env.readCsvFile [(String,String)]("data.csv"
> ,fieldDelimiter = ","
> ,includedFields = Array(0,1))
>
> Read all columns from, CSV (3 in my example)
>
>
>
>
