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https://issues.apache.org/jira/browse/PARQUET-484?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ryan Blue resolved PARQUET-484.
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Resolution: Fixed
Fix Version/s: 1.9.0
Merged #316. Thanks for fixing this, [~proflin]!
> Warn when Decimal is stored as INT64 while could be stored as INT32
> -------------------------------------------------------------------
>
> Key: PARQUET-484
> URL: https://issues.apache.org/jira/browse/PARQUET-484
> Project: Parquet
> Issue Type: Improvement
> Components: parquet-mr
> Affects Versions: 1.8.0, 1.8.1
> Reporter: Liwei Lin
> Assignee: Liwei Lin
> Fix For: 1.9.0
>
>
> Below is documented in
> https://github.com/Parquet/parquet-format/blob/master/LogicalTypes.md#decimal:
> {quote} int32: for 1 <= precision <= 9
> int64: for 1 <= precision <= 18; precision < 10 will produce a warning {quote}
> This JIRA proposes to implement the `precision < 10 will produce a warning`
> part.
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