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Posted to dev@parquet.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2021/08/05 02:34:00 UTC

[jira] [Commented] (PARQUET-2072) Do Not Determine Both Min/Max for Binary Stats

    [ https://issues.apache.org/jira/browse/PARQUET-2072?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17393560#comment-17393560 ] 

ASF GitHub Bot commented on PARQUET-2072:
-----------------------------------------

belugabehr opened a new pull request #920:
URL: https://github.com/apache/parquet-mr/pull/920


   Make sure you have checked _all_ steps below.
   
   ### Jira
   
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   No change in functionality. Use existing unit tests.
   
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> Do Not Determine Both Min/Max for Binary Stats
> ----------------------------------------------
>
>                 Key: PARQUET-2072
>                 URL: https://issues.apache.org/jira/browse/PARQUET-2072
>             Project: Parquet
>          Issue Type: Improvement
>            Reporter: David Mollitor
>            Assignee: David Mollitor
>            Priority: Minor
>
> I'm looking at some benchmarking code of Apache ORC v.s. Apache Parquet and see that Parquet is quite a bit slower for writes (reads TBD).  Based on my investigation, I have noticed a significant amount of time spent in determining min/max for binary types.
> One quick improvement is to bypass a "max" value determinization if the value has already been determined to be a "min".
> While I'm at it, remove calls to deprecated functions.



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