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https://issues.apache.org/jira/browse/HIVE-19992?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16544706#comment-16544706
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Prasanth Jayachandran commented on HIVE-19992:
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+1 pending tests
> Vectorization: Follow-on to HIVE-19951 --> add call to
> SchemaEvolution.isOnlyImplicitConversion to disable encoded LLAP I/O for ORC
> only when data type conversion is not implicit
> ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: HIVE-19992
> URL: https://issues.apache.org/jira/browse/HIVE-19992
> Project: Hive
> Issue Type: Bug
> Components: Hive
> Reporter: Matt McCline
> Assignee: Matt McCline
> Priority: Critical
> Attachments: HIVE-19992.01.patch, HIVE-19992.02.patch
>
>
> When ORC-380 that adds the SchemaEvolution.isOnlyImplicitConversion call is
> available in the ORC release used by Apache master (and branch-3), then
> update LlapRecordReader (see comments in HIVE-19951 change).
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