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From "Sergey Shelukhin (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-9555) assorted ORC refactorings for LLAP on trunk
Date Mon, 02 Feb 2015 23:38:34 GMT
Sergey Shelukhin created HIVE-9555:
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             Summary: assorted ORC refactorings for LLAP on trunk
                 Key: HIVE-9555
                 URL: https://issues.apache.org/jira/browse/HIVE-9555
             Project: Hive
          Issue Type: Bug
            Reporter: Sergey Shelukhin
            Assignee: Sergey Shelukhin


To minimize conflicts and given that ORC is being developed rapidly on trunk, I would like
to refactor some parts of ORC "in advance" based on the changes in LLAP branch. Mostly it
concerns making parts of ORC code (esp. SARG, but also some internal methods) more modular
and easier to use from alternative codepaths. There's also significant change to how data
reading is handled - BufferChunk inherits from DiskRange; the reader receives a list of DiskRange-s
(as before), but instead of making a list of buffer chunks it replaces ranges with buffer
chunks in the original (linked) list. 



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