[jira] [Closed] (CARBONDATA-1625) Introduce new datatype of varchar(size) to store column length more than short limit.

[Akash R Nilugal (Jira)]

     [ https://issues.apache.org/jira/browse/CARBONDATA-1625?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Zhichao  Zhang closed CARBONDATA-1625.
--------------------------------------
    Resolution: Duplicate

This feature was supported

> Introduce new datatype of  varchar(size) to store column length more than short limit.
> --------------------------------------------------------------------------------------
>
>                 Key: CARBONDATA-1625
>                 URL: https://issues.apache.org/jira/browse/CARBONDATA-1625
>             Project: CarbonData
>          Issue Type: New Feature
>          Components: file-format
>            Reporter: Zhichao  Zhang
>            Priority: Minor
>
> I am using Spark 2.1 + CarbonData 1.2, and find that if
> enable.unsafe.sort=true, the length of bytes of column exceed 32768, it will
> load data unsuccessfully.
> My test code:
>    
> {code:java}
> val longStr = sb.toString()  // the getBytes length of longStr exceeds 32768
>     println(longStr.length())
>     println(longStr.getBytes("UTF-8").length)
>    
>     import spark.implicits._
>     val df1 = spark.sparkContext.parallelize(0 to 1000)
>       .map(x => ("a", x.toString(), longStr, x, x.toLong, x * 2))
>       .toDF("stringField1", "stringField2", "stringField3", "intField",
> "longField", "int2Field")
>      
>     val df2 = spark.sparkContext.parallelize(1001 to 2000)
>       .map(x => ("b", x.toString(), (x % 2).toString(), x, x.toLong, x * 2))
>       .toDF("stringField1", "stringField2", "stringField3", "intField",
> "longField", "int2Field")
>      
>     val df3 = df1.union(df2)
>     val tableName = "study_carbondata_test"
>     spark.sql(s"DROP TABLE IF EXISTS ${tableName} ").show()
>     val sortScope = "LOCAL_SORT"   // LOCAL_SORT   GLOBAL_SORT
>     spark.sql(s"""
>         |  CREATE TABLE IF NOT EXISTS ${tableName} (
>         |    stringField1          string,
>         |    stringField2          string,
>         |    stringField3          string,
>         |    intField              int,
>         |    longField             bigint,
>         |    int2Field             int
>         |  )
>         |  STORED BY 'carbondata'
>         |  TBLPROPERTIES('DICTIONARY_INCLUDE'='stringField1, stringField2',
>         |    'SORT_COLUMNS'='stringField1, stringField2, intField,
> longField',
>         |    'SORT_SCOPE'='${sortScope}',
>         |    'NO_INVERTED_INDEX'='stringField3, int2Field',
>         |    'TABLE_BLOCKSIZE'='64'
>         |  )
>        """.stripMargin)
>     df3.write
>       .format("carbondata")  
>       .option("tableName", "study_carbondata_test")
>       .option("compress", "true")  // just valid when tempCSV is true
>       .option("tempCSV", "false")
>       .option("single_pass", "true")
>       .mode(SaveMode.Append)
>       .save()
> {code}
> The error message:
> {code:java}
> *java.lang.NegativeArraySizeException
>         at
> org.apache.carbondata.processing.newflow.sort.unsafe.UnsafeCarbonRowPage.getRow(UnsafeCarbonRowPage.java:182)
>         at
> org.apache.carbondata.processing.newflow.sort.unsafe.holder.UnsafeInmemoryHolder.readRow(UnsafeInmemoryHolder.java:63)
>         at
> org.apache.carbondata.processing.newflow.sort.unsafe.merger.UnsafeSingleThreadFinalSortFilesMerger.startSorting(UnsafeSingleThreadFinalSortFilesMerger.java:114)
>         at
> org.apache.carbondata.processing.newflow.sort.unsafe.merger.UnsafeSingleThreadFinalSortFilesMerger.startFinalMerge(UnsafeSingleThreadFinalSortFilesMerger.java:81)
>         at
> org.apache.carbondata.processing.newflow.sort.impl.UnsafeParallelReadMergeSorterImpl.sort(UnsafeParallelReadMergeSorterImpl.java:105)
>         at
> org.apache.carbondata.processing.newflow.steps.SortProcessorStepImpl.execute(SortProcessorStepImpl.java:62)
>         at
> org.apache.carbondata.processing.newflow.steps.DataWriterProcessorStepImpl.execute(DataWriterProcessorStepImpl.java:87)
>         at
> org.apache.carbondata.processing.newflow.DataLoadExecutor.execute(DataLoadExecutor.java:51)
>         at
> org.apache.carbondata.spark.rdd.NewDataFrameLoaderRDD$$anon$2.<init>(NewCarbonDataLoadRDD.scala:442)
>         at
> org.apache.carbondata.spark.rdd.NewDataFrameLoaderRDD.internalCompute(NewCarbonDataLoadRDD.scala:405)
>         at
> org.apache.carbondata.spark.rdd.CarbonRDD.compute(CarbonRDD.scala:62)
>         at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:323)
>         at org.apache.spark.rdd.RDD.iterator(RDD.scala:287)*
> {code}
> Currently, the length of column was stored by short type.
> Introduce new datatype of  varchar(size) to store column length more than short limit.

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