Devavret Makkar created ORC-642:
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Summary: 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
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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