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https://issues.apache.org/jira/browse/PARQUET-1487?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16736960#comment-16736960
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ASF GitHub Bot commented on PARQUET-1487:
-----------------------------------------

nandorKollar commented on pull request #585: PARQUET-1487: Do not write 
original type for timezone-agnostic timestamps
URL: https://github.com/apache/parquet-mr/pull/585
 
 
   
 
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> Do not write original type for timezone-agnostic timestamps
> -----------------------------------------------------------
>
>                 Key: PARQUET-1487
>                 URL: https://issues.apache.org/jira/browse/PARQUET-1487
>             Project: Parquet
>          Issue Type: Improvement
>          Components: parquet-mr
>    Affects Versions: 1.11.0
>            Reporter: Zoltan Ivanfi
>            Assignee: Nandor Kollar
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.11.0
>
>
> Historically, the TIMESTAMP_MILLIS and TIMESTAMP_MICROS original types used 
> for the INT64 physical type were always UTC-normalized.
> The new TIMESTAMP logical type allows both UTC-normalized and 
> timezone-agnostic timestamps and writes the legacy original types for 
> compatibility reasons. However, the latter should only be written for 
> UTC-normalized timestamps, because legacy readers are not prepared to handle 
> timezone-agnostic timestamps correctly and the original type would just be 
> misleading.



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