Prasanth Jayachandran created HIVE-12684:
--------------------------------------------
Summary: NPE in stats annotation when all values in decimal column
are NULLs
Key: HIVE-12684
URL: https://issues.apache.org/jira/browse/HIVE-12684
Project: Hive
Issue Type: Bug
Affects Versions: 1.3.0, 2.0.0, 2.1.0
Reporter: Prasanth Jayachandran
Assignee: Prasanth Jayachandran
When all column values are null for a decimal column and when column stats
exists. AnnotateWithStatistics optimization can throw NPE. Following is the
exception trace
{code}
java.lang.NullPointerException
at
org.apache.hadoop.hive.ql.stats.StatsUtils.getColStatistics(StatsUtils.java:712)
at
org.apache.hadoop.hive.ql.stats.StatsUtils.convertColStats(StatsUtils.java:764)
at
org.apache.hadoop.hive.ql.stats.StatsUtils.getTableColumnStats(StatsUtils.java:750)
at
org.apache.hadoop.hive.ql.stats.StatsUtils.collectStatistics(StatsUtils.java:197)
at
org.apache.hadoop.hive.ql.stats.StatsUtils.collectStatistics(StatsUtils.java:143)
at
org.apache.hadoop.hive.ql.stats.StatsUtils.collectStatistics(StatsUtils.java:131)
at
org.apache.hadoop.hive.ql.optimizer.stats.annotation.StatsRulesProcFactory$TableScanStatsRule.process(StatsRulesProcFactory.java:114)
at
org.apache.hadoop.hive.ql.lib.DefaultRuleDispatcher.dispatch(DefaultRuleDispatcher.java:90)
at
org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.dispatchAndReturn(DefaultGraphWalker.java:105)
at
org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.dispatch(DefaultGraphWalker.java:89)
at
org.apache.hadoop.hive.ql.lib.LevelOrderWalker.walk(LevelOrderWalker.java:143)
at
org.apache.hadoop.hive.ql.lib.LevelOrderWalker.startWalking(LevelOrderWalker.java:122)
at
org.apache.hadoop.hive.ql.optimizer.stats.annotation.AnnotateWithStatistics.transform(AnnotateWithStatistics.java:78)
at
org.apache.hadoop.hive.ql.optimizer.Optimizer.optimize(Optimizer.java:228)
at
org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:10156)
at
org.apache.hadoop.hive.ql.parse.CalcitePlanner.analyzeInternal(CalcitePlanner.java:225)
at
org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:237)
at
org.apache.hadoop.hive.ql.parse.ExplainSemanticAnalyzer.analyzeInternal(ExplainSemanticAnalyzer.java:74)
at
org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:237)
{code}
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