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Posted to dev@parquet.apache.org by "Gabor Szadovszky (JIRA)" <ji...@apache.org> on 2018/04/21 12:39:03 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 ]

Gabor Szadovszky updated PARQUET-686:
-------------------------------------
    Fix Version/s: 1.8.2

> 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
>            Priority: Major
>             Fix For: 1.9.0, 1.8.2
>
>
> 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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