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From "Liang Chen (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CARBONDATA-1508) Fixed bug for maintaining compatibility of decimal type with older releases of Carbondata
Date Mon, 09 Oct 2017 15:22:00 GMT

     [ https://issues.apache.org/jira/browse/CARBONDATA-1508?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Liang Chen updated CARBONDATA-1508:
-----------------------------------
    Fix Version/s:     (was: 1.2.0)

> Fixed bug for maintaining compatibility of decimal type with older releases of Carbondata
> -----------------------------------------------------------------------------------------
>
>                 Key: CARBONDATA-1508
>                 URL: https://issues.apache.org/jira/browse/CARBONDATA-1508
>             Project: CarbonData
>          Issue Type: Bug
>            Reporter: Manish Gupta
>            Assignee: Manish Gupta
>
> In old Carbondata releases, precision and scale is not stored for decimal data type and
both values are initialized to -1. In TableSpec.ColumnSpec  default values for precision and
scale are initialized to 0 because of which exception is thrown while reading the old store
with decimal column. Exception trace
> Caused by: java.lang.ClassCastException: [B cannot be cast to java.lang.Long
> 	at org.apache.carbondata.core.metadata.datatype.DecimalConverterFactory$DecimalIntConverter.getDecimal(DecimalConverterFactory.java:98)
> 	at org.apache.carbondata.core.datastore.page.UnsafeDecimalColumnPage.getDecimal(UnsafeDecimalColumnPage.java:260)
> 	at org.apache.carbondata.core.datastore.page.LazyColumnPage.getDecimal(LazyColumnPage.java:111)
> 	at org.apache.carbondata.core.scan.result.vector.MeasureDataVectorProcessor$DecimalMeasureVectorFiller.fillMeasureVector(MeasureDataVectorProcessor.java:215)
> 	at org.apache.carbondata.core.scan.result.AbstractScannedResult.fillColumnarMeasureBatch(AbstractScannedResult.java:257)
> 	at org.apache.carbondata.core.scan.collector.impl.DictionaryBasedVectorResultCollector.scanAndFillResult(DictionaryBasedVectorResultCollector.java:164)
> 	at org.apache.carbondata.core.scan.collector.impl.DictionaryBasedVectorResultCollector.collectVectorBatch(DictionaryBasedVectorResultCollector.java:155)
> 	at org.apache.carbondata.core.scan.processor.impl.DataBlockIteratorImpl.processNextBatch(DataBlockIteratorImpl.java:65)
> 	at org.apache.carbondata.core.scan.result.iterator.VectorDetailQueryResultIterator.processNextBatch(VectorDetailQueryResultIterator.java:46)
> 	at org.apache.carbondata.spark.vectorreader.VectorizedCarbonRecordReader.nextBatch(VectorizedCarbonRecordReader.java:258)
> 	at org.apache.carbondata.spark.vectorreader.VectorizedCarbonRecordReader.nextKeyValue(VectorizedCarbonRecordReader.java:145)
> 	at org.apache.carbondata.spark.rdd.CarbonScanRDD$$anon$1.hasNext(CarbonScanRDD.scala:246)



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