[jira] [Commented] (PARQUET-1685) Truncate the stored min and max for String statistics to reduce the footer size

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PARQUET-1685?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16973152#comment-16973152 ] 

ASF GitHub Bot commented on PARQUET-1685:
-----------------------------------------

gszadovszky commented on pull request #696: PARQUET-1685: Truncate Min/Max for Statistics
URL: https://github.com/apache/parquet-mr/pull/696
 
 
   
 
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> Truncate the stored min and max for String statistics to reduce the footer size 
> --------------------------------------------------------------------------------
>
>                 Key: PARQUET-1685
>                 URL: https://issues.apache.org/jira/browse/PARQUET-1685
>             Project: Parquet
>          Issue Type: Improvement
>          Components: parquet-mr
>    Affects Versions: 1.10.1
>            Reporter: Xinli Shang
>            Assignee: Xinli Shang
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.12.0
>
>
> Iceberg has a cool feature that truncates the stored min, max statistics to minimize the metadata size. We can borrow to truncate them in Parquet also to reduce the size of the footer, or even the page header. Here is the code in IceBerg [https://github.com/apache/incubator-iceberg/blob/master/api/src/main/java/org/apache/iceberg/util/UnicodeUtil.java]. 
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