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https://issues.apache.org/jira/browse/HIVE-2540?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13145602#comment-13145602
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Bejoy KS commented on HIVE-2540:
--------------------------------
The map issue on explode was seen on a latest build from hive trunk.
Maps were supported with LATERAL VIEW explode() with JIRA HIVE-1735 on 0.8
branch.
> LATERAL VIEW with EXPLODE produces ConcurrentModificationException
> ------------------------------------------------------------------
>
> Key: HIVE-2540
> URL: https://issues.apache.org/jira/browse/HIVE-2540
> Project: Hive
> Issue Type: Bug
> Components: Query Processor
> Affects Versions: 0.7.1
> Reporter: David Phillips
>
> The following produces {{ConcurrentModificationException}} on the {{for}}
> loop inside EXPLODE:
> {code}
> create table foo as select array(1, 2) a from src limit 1;
> select a, x.b from foo lateral view explode(a) x as b;
> {code}
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