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Posted to dev@orc.apache.org by "Fang Zheng (JIRA)" <ji...@apache.org> on 2018/10/30 00:31:00 UTC

[jira] [Created] (ORC-426) Errors in ORC Specification

Fang Zheng created ORC-426:
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             Summary: Errors in ORC Specification
                 Key: ORC-426
                 URL: https://issues.apache.org/jira/browse/ORC-426
             Project: ORC
          Issue Type: Bug
          Components: documentation
            Reporter: Fang Zheng


There are some errors in the ORC format specifications:

1. In specification/ORCv1.md and specification/ORCv2.md, the following sentence appears twice in the description of "Patched Base”:

Data values (W * L bits padded to the byte) - A sequence of W bit positive
  values that are added to the base value.

2. In specification/ORCv0.md, specification/ORCv1.md, and specification/ORCv2.md, there is an error in the description of “Map Columns”:

Maps are encoded as the PRESENT stream and a length stream with number
of items in each list. —> The last word “list” should be changed to “map”

3. In specification/ORCv1.md and specification/ORCv2.md, the word “BloomFilterEntry” should be changed to “bloom filter entry”, as “BloomFilterEntry” does not exist in the source code or ProtocolBuffer definition.




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