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Posted to dev@parquet.apache.org by "Zoltan Ivanfi (JIRA)" <ji...@apache.org> on 2017/06/08 13:45:18 UTC

[jira] [Updated] (PARQUET-686) Allow for Unsigned Statistics in Binary Type

     [ https://issues.apache.org/jira/browse/PARQUET-686?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Zoltan Ivanfi updated PARQUET-686:
----------------------------------
    Component/s: parquet-format

> Allow for Unsigned Statistics in Binary Type
> --------------------------------------------
>
>                 Key: PARQUET-686
>                 URL: https://issues.apache.org/jira/browse/PARQUET-686
>             Project: Parquet
>          Issue Type: Bug
>          Components: parquet-format
>            Reporter: Andrew Duffy
>            Assignee: Ryan Blue
>             Fix For: 1.9.0
>
>
> BinaryStatistics currently only have a min/max, which are compared as signed {{byte[]}}. However, for real UTF8-friendly lexicographic comparison, e.g. for string columns, we would want to calculate the BinaryStatistics based off of a comparator that treats the bytes as unsigned.



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