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https://issues.apache.org/jira/browse/HIVE-11245?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14626784#comment-14626784
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Gunther Hagleitner commented on HIVE-11245:
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[~sershe] any thoughts on factoring out such a "DataSource" API?

> LLAP: Fix the LLAP to ORC APIs
> ------------------------------
>
>                 Key: HIVE-11245
>                 URL: https://issues.apache.org/jira/browse/HIVE-11245
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Owen O'Malley
>            Assignee: Sergey Shelukhin
>            Priority: Blocker
>
> Currently the LLAP branch has refactored the ORC code to have different code 
> paths depending on whether the data is coming from the cache or a FileSystem.
> We need to introduce a concept of a DataSource that is responsible for 
> getting the necessary bytes regardless of whether they are coming from a 
> FileSystem, in memory cache, or both.



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