By doing so, I got the following error :
Exception in thread "main" org.apache.spark.sql.AnalysisException: GetField
is not valid on fields
Seems that it doesn't like image.data expression.
On Wed, Feb 25, 2015 at 12:37 AM, Xiangrui Meng wrote:
> Btw, the correct syntax for alias should be
> `
Btw, the correct syntax for alias should be
`df.select($"image.data".as("features"))`.
On Tue, Feb 24, 2015 at 3:35 PM, Xiangrui Meng wrote:
> If you make `Image` a case class, then select("image.data") should work.
>
> On Tue, Feb 24, 2015 at 3:06 PM, Jaonary Rabarisoa wrote:
>> Hi all,
>>
>> I
If you make `Image` a case class, then select("image.data") should work.
On Tue, Feb 24, 2015 at 3:06 PM, Jaonary Rabarisoa wrote:
> Hi all,
>
> I have a DataFrame that contains a user defined type. The type is an image
> with the following attribute
>
> class Image(w: Int, h: Int, data: Vector)
