Chao Sun updated HIVE-15130:
    Attachment:     (was: HIVE-15130.2.patch)

> 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
>         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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