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From "Sanoj MG (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CARBONDATA-730) unsupported type: DecimalType
Date Sun, 26 Feb 2017 10:02:45 GMT
Sanoj MG created CARBONDATA-730:
-----------------------------------

             Summary: unsupported type: DecimalType
                 Key: CARBONDATA-730
                 URL: https://issues.apache.org/jira/browse/CARBONDATA-730
             Project: CarbonData
          Issue Type: Improvement
          Components: spark-integration
    Affects Versions: 1.0.0-incubating
         Environment: Spark 1.6.2 Hadoop 2.6
            Reporter: Sanoj MG
            Priority: Minor
             Fix For: 1.1.0-incubating


Below exception is thrown while trying to save dataframe with a decimal column type. 

scala> df.printSchema

 |-- account: integer (nullable = true)
 |-- currency: integer (nullable = true)
 |-- branch: integer (nullable = true)
 |-- country: integer (nullable = true)
 |-- date: date (nullable = true)
 |-- fcbalance: decimal(16,3) (nullable = true)
 |-- lcbalance: decimal(16,3) (nullable = true)

scala> df.write.format("carbondata").option("tableName", "accBal").option("compress", "true").mode(SaveMode.Overwrite).save()

java.lang.RuntimeException: unsupported type: DecimalType(16,3)
        at scala.sys.package$.error(package.scala:27)
        at org.apache.carbondata.spark.CarbonDataFrameWriter.org$apache$carbondata$spark$CarbonDataFrameWriter$$convertToCarbonType(CarbonDataFrameWriter.scala:172)
        at org.apache.carbondata.spark.CarbonDataFrameWriter$$anonfun$2.apply(CarbonDataFrameWriter.scala:178)
        at org.apache.carbondata.spark.CarbonDataFrameWriter$$anonfun$2.apply(CarbonDataFrameWriter.scala:177)
        at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)

This is working fine with below change : 
git diff
diff --git a/integration/spark/src/main/scala/org/apache/carbondata/spark/CarbonDataFrameWriter.scala
b/integration/spark/src/main/scala/org/apache/carbondata/spark/CarbonDataFrameWriter.scala
index b843f59..cf9a775 100644
--- a/integration/spark/src/main/scala/org/apache/carbondata/spark/CarbonDataFrameWriter.scala
+++ b/integration/spark/src/main/scala/org/apache/carbondata/spark/CarbonDataFrameWriter.scala
@@ -169,6 +169,7 @@ class CarbonDataFrameWriter(val dataFrame: DataFrame) {
       case BooleanType => CarbonType.DOUBLE.getName
       case TimestampType => CarbonType.TIMESTAMP.getName
       case DateType => CarbonType.DATE.getName
+      case dt: DecimalType => s"${CarbonType.DECIMAL.getName}(${dt.precision}, ${dt.scale})"
       case other => sys.error(s"unsupported type: $other")
     }
   }

Can I create a pull request?






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