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

["Ivan Gozali (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PARQUET-686?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16248231#comment-16248231 ] 

Ivan Gozali edited comment on PARQUET-686 at 11/11/17 12:39 AM:
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Hi all, just curious if this issue is also resolved in Parquet 1.8.2, which is what Spark 2.2.0 uses?


was (Author: igozali):
Hi all, just curious if this issue is also resolved in Parquet 1.8.2, which is what Spark 2.2.0 currently uses?

> 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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