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Posted to dev@drill.apache.org by "Aman Sinha (JIRA)" <ji...@apache.org> on 2019/05/06 17:57:00 UTC

[jira] [Created] (DRILL-7242) Query with range predicate hits IOBE when accessing histogram buckets

Aman Sinha created DRILL-7242:
---------------------------------

             Summary: Query with range predicate hits IOBE when accessing histogram buckets
                 Key: DRILL-7242
                 URL: https://issues.apache.org/jira/browse/DRILL-7242
             Project: Apache Drill
          Issue Type: Bug
          Components: Query Planning &amp; Optimization
    Affects Versions: 1.16.0
            Reporter: Aman Sinha
            Assignee: Aman Sinha
             Fix For: 1.17.0


Following query hits an IOBE during histogram access:  (make sure to run ANALYZE command before running this query): 

{noformat}
     select 1 from dfs.tmp.employee where store_id > 24;

Caused by: java.lang.ArrayIndexOutOfBoundsException: 11
	at org.apache.drill.exec.planner.common.NumericEquiDepthHistogram.getSelectedRows(NumericEquiDepthHistogram.java:215) ~[drill-java-exec-1.16.0.0-mapr.jar:1.16.0.0-mapr]
	at org.apache.drill.exec.planner.common.NumericEquiDepthHistogram.estimatedSelectivity(NumericEquiDepthHistogram.java:130) ~[drill-java-exec-1.16.0.0-mapr.jar:1.16.0.0-mapr]
	at org.apache.drill.exec.planner.cost.DrillRelMdSelectivity.computeRangeSelectivity(DrillRelMd
{noformat}

Here, 24.0 is the end point of the last histogram bucket and the  boundary condition is not being correctly handled. 




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