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https://issues.apache.org/jira/browse/HIVE-15130?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15718830#comment-15718830
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ASF GitHub Bot commented on HIVE-15130:
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Github user sunchao closed the pull request at:
https://github.com/apache/hive/pull/112
> Fixing shifting index issue related to object inspector caching
> ---------------------------------------------------------------
>
> Key: HIVE-15130
> URL: https://issues.apache.org/jira/browse/HIVE-15130
> Project: Hive
> Issue Type: Sub-task
> Components: Reader
> Reporter: Chao Sun
> Assignee: Chao Sun
> Fix For: 2.2.0
>
> Attachments: HIVE-15130.1.patch, HIVE-15130.2.patch
>
>
> Hive caches object inspector in memory to avoid recreating the same object.
> However, in {{ArrayWritableObjectInspector}}, the {{equals}} and {{hashCode}}
> doesn't take account on all attributes of the class, therefore, even though
> the internal state (e.g., {{adjustedIndex}}) is different, it could still be
> mapped to the same result. This could cause wrong field index being used when
> reading Parquet data.
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