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https://issues.apache.org/jira/browse/IMPALA-7427?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17317352#comment-17317352
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Ryan Blue commented on IMPALA-7427:
-----------------------------------
I don't have concerns about using this field. The purpose was to be able to
handle bugs introduced by different object models from Parquet MR. I would keep
the value here simple, though. The `created_by` field is for version
information. This is just for the object model within that version for Parquet
MR.
> Write Impala version information to writer.model.name footer field of Parquet
> -----------------------------------------------------------------------------
>
> Key: IMPALA-7427
> URL: https://issues.apache.org/jira/browse/IMPALA-7427
> Project: IMPALA
> Issue Type: Improvement
> Components: Backend
> Reporter: Zoltan Ivanfi
> Assignee: Amogh Margoor
> Priority: Minor
> Labels: newbie, parquet, ramp-up
>
> PARQUET-352 added support for the "writer.model.name" property in the Parquet
> metadata to identify the object model (application) that wrote the file.
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