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https://issues.apache.org/jira/browse/HIVE-7312?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14046700#comment-14046700
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Gunther Hagleitner commented on HIVE-7312:
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Only happens when col stats haven't been gathered. Leaving this open though.
There should be a graceful way to detect that and maybe log what's happening.
> CBO throws ArrayIndexOutOfBounds
> --------------------------------
>
> Key: HIVE-7312
> URL: https://issues.apache.org/jira/browse/HIVE-7312
> Project: Hive
> Issue Type: Sub-task
> Reporter: Gunther Hagleitner
>
> Running tpcds query 17. Still confirming if col stats are available.
> When I turn CBO on (this is just the relevant snipped, the actual exception
> is pages long):
> Caused by: java.lang.IndexOutOfBoundsException: Index: 24, Size: 0
> at java.util.ArrayList.rangeCheck(ArrayList.java:635)
> at java.util.ArrayList.get(ArrayList.java:411)
> at
> org.apache.hadoop.hive.ql.optimizer.optiq.RelOptHiveTable.getColStat(RelOptHiveTable.java:97)
> at
> org.apache.hadoop.hive.ql.optimizer.optiq.reloperators.HiveTableScanRel.getColStat(HiveTableScanRel.java:73)
> at
> org.apache.hadoop.hive.ql.optimizer.optiq.stats.HiveRelMdDistinctRowCount.getDistinctRowCount(HiveRelMdDistinctRowCount.java:47)
> at
> org.apache.hadoop.hive.ql.optimizer.optiq.stats.HiveRelMdDistinctRowCount.getDistinctRowCount(HiveRelMdDistinctRowCount.java:36)
> ... 272 more
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