help!!!----issue with spark-sql type cast form long to longwritable

[Sirisha Cheruvu]

Hi Team,

I am trying to keep below code in get method and calling that get mthod in
another hive UDF
and running the hive UDF using Hive Context.sql procedure..


switch (f) {
    case "double" :  return ((DoubleWritable)obj).get();
            case "bigint" :  return ((LongWritable)obj).get();
            case "string" :  return ((Text)obj).toString();
    default  :  return obj;
  }
}

Suprisingly only LongWritable and Text convrsions are throwing error but
DoubleWritable is working
So I tried changing below code to

switch (f) {
    case "double" :  return ((DoubleWritable)obj).get();
            case "bigint" :  return ((DoubleWritable)obj).get();
            case "string" :  return ((Text)obj).toString();
    default  :  return obj;
  }
}

Still its throws error saying Java.Lang.Long cant be convrted
to org.apache.hadoop.hive.serde2.io.DoubleWritable



its working fine on hive but throwing error on spark-sql

I am importing the below packages.
import java.util.*;
import org.apache.hadoop.hive.serde2.objectinspector.*;
import org.apache.hadoop.io.LongWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.hive.serde2.io.DoubleWritable;

.Please let me know why it is making issue in spark when perfectly running
fine on hive