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https://issues.apache.org/jira/browse/ORC-642?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dongjoon Hyun resolved ORC-642.
-------------------------------
Fix Version/s: 2.1.0
Resolution: Fixed
> ORC specification for RLEv2 is incomplete
> -----------------------------------------
>
> Key: ORC-642
> URL: https://issues.apache.org/jira/browse/ORC-642
> Project: ORC
> Issue Type: Bug
> Reporter: Devavret Makkar
> Assignee: Jeffrey Vo
> Priority: Minor
> Fix For: 2.1.0
>
>
> The documentation at [https://orc.apache.org/specification/ORCv1/] fails to
> mention that in RLEv2 patched base mode, the bit width of PW + PGW is to be
> ceiled to the nearest fixed bit size. The values in the fixed bit size set
> appear to be from the table here
> [https://github.com/apache/orc/blob/9c65bc116a2208d5d729687b7744b2ffbd72fea0/c%2B%2B/src/RLEV2Util.cc#L30-L37]
> which does not exactly match the values in the 5 bit width encoding table as
> the latter lacks support for sizes 22 and 23.
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