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https://issues.apache.org/jira/browse/HIVE-9322?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14328457#comment-14328457
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Prasanth Jayachandran commented on HIVE-9322:
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+1
> Make null-checks consistent for MapObjectInspector subclasses.
> --------------------------------------------------------------
>
> Key: HIVE-9322
> URL: https://issues.apache.org/jira/browse/HIVE-9322
> Project: Hive
> Issue Type: Bug
> Components: Serializers/Deserializers
> Affects Versions: 0.14.0
> Reporter: Mithun Radhakrishnan
> Assignee: Mithun Radhakrishnan
> Priority: Minor
> Attachments: HIVE-9322.1.patch
>
>
> {{LazyBinaryMapObjectInspector}}, {{DeepParquetHiveMapInspector}}, etc. check
> both the map-column value and the map-key for null, before dereferencing
> them. {{OrcMapObjectInspector}} and {{LazyMapObjectInspector}} do not.
> This patch brings them all in sync. Might not be a real problem, unless (for
> example) the lookup key is itself a (possibly null) value from another column.
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