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From "xubo245 (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CARBONDATA-1551) There is an error when table has Array<STRING> column and ENABLE_AUTO_LOAD_MERGE is true
Date Sun, 29 Oct 2017 13:24:00 GMT

    [ https://issues.apache.org/jira/browse/CARBONDATA-1551?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16223994#comment-16223994
] 

xubo245 commented on CARBONDATA-1551:
-------------------------------------

When compact table that has array<string> complex data type, there also is an error:


{code:java}
java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
	at java.util.ArrayList.rangeCheck(ArrayList.java:653)
	at java.util.ArrayList.get(ArrayList.java:429)
	at org.apache.carbondata.core.datastore.block.SegmentProperties.assignComplexOrdinal(SegmentProperties.java:473)
	at org.apache.carbondata.core.datastore.block.SegmentProperties.fillDimensionAndMeasureDetails(SegmentProperties.java:398)
	at org.apache.carbondata.core.datastore.block.SegmentProperties.<init>(SegmentProperties.java:174)
	at org.apache.carbondata.spark.rdd.CarbonMergerRDD$$anon$1.<init>(CarbonMergerRDD.scala:160)
	at org.apache.carbondata.spark.rdd.CarbonMergerRDD.internalCompute(CarbonMergerRDD.scala:78)
	at org.apache.carbondata.spark.rdd.CarbonRDD.compute(CarbonRDD.scala:60)
	at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:323)
	at org.apache.spark.rdd.RDD.iterator(RDD.scala:287)
	at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:87)
	at org.apache.spark.scheduler.Task.run(Task.scala:99)
	at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:282)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:748)
{code}


test code is :

{code:java}
 sql(
      """
        | CREATE TABLE big_array(
        |  list ARRAY<STRING>
        |  )
        | STORED BY 'carbondata'
      """.stripMargin)
    sql(
      s"""
         | LOAD DATA LOCAL INPATH '${file.getAbsolutePath}'
         | INTO TABLE big_array
         | OPTIONS ('header'='false')
      """.stripMargin)

    sql(
      s"""
         | LOAD DATA LOCAL INPATH '${file.getAbsolutePath}'
         | INTO TABLE big_array
         | OPTIONS ('header'='false')
      """.stripMargin)

    checkAnswer(
      sql("select count(*) from big_array"),
      Row(66000)
    )

    val exception_compaction: Exception = intercept[Exception] {
      sql("alter table big_array compact 'major'")
    }
{code}

Analysis:

in compaction, the array<string> is expressed with one column, but normal should be
two column, so it will out of index. 

> There is an error when table has Array<STRING> column and ENABLE_AUTO_LOAD_MERGE
is true
> ----------------------------------------------------------------------------------------
>
>                 Key: CARBONDATA-1551
>                 URL: https://issues.apache.org/jira/browse/CARBONDATA-1551
>             Project: CarbonData
>          Issue Type: Bug
>          Components: data-load
>    Affects Versions: 1.1.1
>            Reporter: xubo245
>
> There is an error when table has Array<STRING> column and ENABLE_AUTO_LOAD_MERGE
is true
> {code:java}
>     //unfinish
>     sql("drop table if exists array_table")
>     CarbonProperties.getInstance().addProperty(CarbonCommonConstants.ENABLE_AUTO_LOAD_MERGE,
"true")
>     sql(
>       s"""
>          | CREATE TABLE array_table(
>          | complexData ARRAY<STRING>
>          | )
>          | STORED BY 'carbondata'
>          | TBLPROPERTIES('sort_columns'='')
>        """.stripMargin)
>     val storeLocation = s"$rootPath/integration/spark-common-test/src/test/resources/bool/ArrayString.csv"
>     for (i <- 0 until 4) {
>       sql(
>         s"""
>            | LOAD DATA LOCAL INPATH '${storeLocation}'
>            | INTO TABLE array_table
>            | options('FILEHEADER'='complexData')
>            """.stripMargin)
>     }
>     checkAnswer(
>       sql("select count(*) from array_table"),
>       Seq(Row(40))
>     )
>     val segments = sql("SHOW SEGMENTS FOR TABLE array_table")
>     val SegmentSequenceIds = segments.collect().map { each => (each.toSeq) (0) }
>     assert(!SegmentSequenceIds.contains("0.1"))
>     assert(SegmentSequenceIds.length == 4)
>     CarbonProperties.getInstance().addProperty(CarbonCommonConstants.ENABLE_AUTO_LOAD_MERGE,
>       CarbonCommonConstants.DEFAULT_ENABLE_AUTO_LOAD_MERGE)
>     sql("drop table if exists array_table")
> {code}



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