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Posted to issues@hive.apache.org by "Chao Sun (JIRA)" <ji...@apache.org> on 2016/11/04 16:27:58 UTC
[jira] [Updated] (HIVE-15130) Fixing shifting index issue related
to object inspector caching
[ https://issues.apache.org/jira/browse/HIVE-15130?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Chao Sun updated HIVE-15130:
----------------------------
Attachment: HIVE-15130.1.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 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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