[ 
https://issues.apache.org/jira/browse/SPARK-26567?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

eaton updated SPARK-26567:
--------------------------
    Description: 
If we want to be consistent, we can modify the makeConverter function in 
UnivocityParser, but the performance may get worse.The modified code is as 
follows:
{code:java}
// code placeholder 
def makeConverter( name: String, dataType: DataType, nullable: Boolean = true, 
options: CSVOptions): ValueConverter = dataType match { case : ByteType => (d: 
String) => nullSafeDatum(d, name, nullable, 
options)(.toDouble.intValue().toByte) case : ShortType => (d: String) => 
nullSafeDatum(d, name, nullable, options)(.toDouble.intValue().toShort) case : 
IntegerType => (d: String) => nullSafeDatum(d, name, nullable, 
options)(.toDouble.intValue()) case : LongType => (d: String) => 
nullSafeDatum(d, name, nullable, options)(.toDouble.intValue().toLong)
{code}
 

  was:
If we want to be consistent, we can modify the makeConverter function in 
UnivocityParser, but the performance may get worse.The modified code is as 
follows:
{code:java}
// code placeholder
{code}
def makeConverter( name: String, dataType: DataType, nullable: Boolean = true, 
options: CSVOptions): ValueConverter = dataType match { case _: ByteType => (d: 
String) => nullSafeDatum(d, name, nullable, 
options)(_.toDouble.intValue().toByte) case _: ShortType => (d: String) => 
nullSafeDatum(d, name, nullable, options)(_.toDouble.intValue().toShort) case 
_: IntegerType => (d: String) => nullSafeDatum(d, name, nullable, 
options)(_.toDouble.intValue()) case _: LongType => (d: String) => 
nullSafeDatum(d, name, nullable, options)(_.toDouble.intValue().toLong)


> Should we align CSV query results with hive text query results: an int field, 
> if the input value is 1.0, hive text query results is 1, CSV query results is 
> null
> ----------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-26567
>                 URL: https://issues.apache.org/jira/browse/SPARK-26567
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 2.4.0
>            Reporter: eaton
>            Priority: Minor
>
> If we want to be consistent, we can modify the makeConverter function in 
> UnivocityParser, but the performance may get worse.The modified code is as 
> follows:
> {code:java}
> // code placeholder 
> def makeConverter( name: String, dataType: DataType, nullable: Boolean = 
> true, options: CSVOptions): ValueConverter = dataType match { case : ByteType 
> => (d: String) => nullSafeDatum(d, name, nullable, 
> options)(.toDouble.intValue().toByte) case : ShortType => (d: String) => 
> nullSafeDatum(d, name, nullable, options)(.toDouble.intValue().toShort) case 
> : IntegerType => (d: String) => nullSafeDatum(d, name, nullable, 
> options)(.toDouble.intValue()) case : LongType => (d: String) => 
> nullSafeDatum(d, name, nullable, options)(.toDouble.intValue().toLong)
> {code}
>  



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