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From omalley <...@git.apache.org>
Subject [GitHub] orc pull request #247: ORC-339. Reorganize the ORC file format specification...
Date Tue, 17 Apr 2018 16:18:17 GMT
Github user omalley commented on a diff in the pull request:

    https://github.com/apache/orc/pull/247#discussion_r182139793
  
    --- Diff: site/specification/ORCv2.md ---
    @@ -0,0 +1,1032 @@
    +---
    +layout: page
    +title: Evolving Draft for ORC Specification v2
    +---
    +
    +This specification is rapidly evolving and should only be used for
    +developers on the project.
    +
    +# TO DO items
    +
    +The list of things that we plan to change:
    +
    +* Create a decimal representation with fixed scale using rle.
    +* Create a better float/double encoding that splits mantissa and
    +  exponent.
    +* Create a dictionary encoding for float, double, and decimal.
    +* Create RLEv3:
    +   * 64 and 128 bit variants
    --- End diff --
    
    Just to clarify the answer "variant" means "one of the instances of something that varies."
The unfortunately similar looking "varint" is an unofficial contraction of "variable length
integer."


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