A demonstration by Maven editor hadoop Hive The UDF function in the sample project.

cdh-query\.classpath
.........\.project
.........\.settings\org.eclipse.core.resources.prefs
.........\.........\org.eclipse.jdt.core.prefs
.........\.........\org.eclipse.m2e.core.prefs
.........\eclipse-classes\com\catt\AppTest.class
.........\...............\...\....\Demo.class
.........\...............\...\....\DereplicationDemo$Map.class
.........\...............\...\....\DereplicationDemo$Reduce.class
.........\...............\...\....\DereplicationDemo.class
.........\...............\...\....\udaf\UDAFExampleAvg$UDAFAvgState.class
.........\...............\...\....\....\UDAFExampleAvg$UDAFExampleAvgEvaluator.class
.........\...............\...\....\....\UDAFExampleAvg.class
.........\...............\...\....\....\UDAFExampleGroupConcat$UDAFExampleGroupConcatEvaluator.class
.........\...............\...\....\....\UDAFExampleGroupConcat.class
.........\...............\...\....\....\UDAFExampleMax$MaxDoubleEvaluator.class
.........\...............\...\....\....\UDAFExampleMax$MaxFloatEvaluator.class
.........\...............\...\....\....\UDAFExampleMax$MaxIntEvaluator.class
.........\...............\...\....\....\UDAFExampleMax$MaxLongEvaluator.class
.........\...............\...\....\....\UDAFExampleMax$MaxShortEvaluator.class
.........\...............\...\....\....\UDAFExampleMax$MaxStringEvaluator.class
.........\...............\...\....\....\UDAFExampleMax.class
.........\...............\...\....\....\UDAFExampleMaxMinNUtil$1.class
.........\...............\...\....\....\UDAFExampleMaxMinNUtil$2.class
.........\...............\...\....\....\UDAFExampleMaxMinNUtil$Evaluator.class
.........\...............\...\....\....\UDAFExampleMaxMinNUtil$State.class
.........\...............\...\....\....\UDAFExampleMaxMinNUtil.class
.........\...............\...\....\....\UDAFExampleMin$MinDoubleEvaluator.class
.........\...............\...\....\....\UDAFExampleMin$MinFloatEvaluator.class
.........\...............\...\....\....\UDAFExampleMin$MinIntEvaluator.class
.........\...............\...\....\....\UDAFExampleMin$MinLongEvaluator.class
.........\...............\...\....\....\UDAFExampleMin$MinShortEvaluator.class
.........\...............\...\....\....\UDAFExampleMin$MinStringEvaluator.class
.........\...............\...\....\....\UDAFExampleMin.class
.........\...............\...\....\....\UDFRowSquece.class
.........\...............\...\....\..tf\GenericUDTFCount2.class
.........\...............\...\....\....\GenericUDTFExplode2.class
.........\...............\...\....\WordCount$IntSumReducer.class
.........\...............\...\....\WordCount$TokenizerMapper.class
.........\...............\...\....\WordCount.class
.........\...............\...\....\WordCountTest.class
.........\...............\impala\ClouderaImpalaJdbcExample.class
.........\...............\......\ConcurrencyQuery.class
.........\...............\......\Demo$1.class
.........\...............\......\Demo.class
.........\...............\......\HiveOperate.class
.........\...............\......\Task.class
.........\...............\log4j.xml
.........\...............\org\apache\hadoop\hive\contrib\udaf\example\UDAFExampleAvg$UDAFAvgState.class
.........\...............\...\......\......\....\.......\....\.......\UDAFExampleAvg$UDAFExampleAvgEvaluator.class
.........\...............\...\......\......\....\.......\....\.......\UDAFExampleAvg.class
.........\...............\...\......\......\....\.......\....\.......\UDAFExampleGroupConcat$UDAFExampleGroupConcatEvaluator.class
.........\...............\...\......\......\....\.......\....\.......\UDAFExampleGroupConcat.class
.........\...............\...\......\......\....\.......\....\.......\UDAFExampleMax$MaxDoubleEvaluator.class
.........\...............\...\......\......\....\.......\....\.......\UDAFExampleMax$MaxFloatEvaluator.class
.........\...............\...\......\......\....\.......\....\.......\UDAFExampleMax$MaxIntEvaluator.class
.........\...............\...\......\......\....\.......\....\.......\UDAFExampleMax$MaxLongEvaluator.class
.........\...............\...\......\......\....\.......

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