Hi,
You can take the schema line in another rdd and than do a union of the two
rdd .
List<String> schemaList = new ArrayList<String>;
schemaList.add("xyz");
// where xyz is your schema line
JavaRDD schemaRDD<String> = sc.parallize(schemaList) ;
//where sc is your sparkcontext
JavaRDD newRDD<String> = schemaRDD.union(yourRDD);
// where yourRDD is your another rdd starting of which you want to add the
schema line.
<The code is in java, you can change it to scala >
Thanks.
On Thu, Jan 15, 2015 at 7:46 PM, Hafiz Mujadid [via Apache Spark User List]
<ml-node+s1001560n21161...@n3.nabble.com> wrote:
> hi experts!
>
> I hav an RDD[String] and i want to add schema line at beginning in this
> rdd. I know RDD is immutable. So is there anyway to have a new rdd with one
> schema line and contents of previous rdd?
>
>
> Thanks
>
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