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Posted to issues@orc.apache.org by "Deshan Xiao (Jira)" <ji...@apache.org> on 2024/04/11 01:49:00 UTC
[jira] [Commented] (ORC-642) Update PatchedBase doc with patch ceiling in spec
[ https://issues.apache.org/jira/browse/ORC-642?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17835943#comment-17835943 ]
Deshan Xiao commented on ORC-642:
---------------------------------
Thanks [~dongjoon]. I tried to use the official merge script but I encountered the problem I mentioned above
> Update PatchedBase doc with patch ceiling in spec
> -------------------------------------------------
>
> Key: ORC-642
> URL: https://issues.apache.org/jira/browse/ORC-642
> Project: ORC
> Issue Type: Bug
> Components: documentation
> 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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