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https://issues.apache.org/jira/browse/PARQUET-1160?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16253764#comment-16253764
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Ryan Blue commented on PARQUET-1160:
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I believe the initial Hive implementation used variable-length byte arrays. But
the more important point is that if it is in the spec, then parquet-cpp should
implement it. The point of having a spec is to ensure interoperability,
regardless of known implementations.
> [C++] Determine whether we need to implement BYTE_ARRAY-backed Decimal reads
> ----------------------------------------------------------------------------
>
> Key: PARQUET-1160
> URL: https://issues.apache.org/jira/browse/PARQUET-1160
> Project: Parquet
> Issue Type: Task
> Components: parquet-cpp
> Affects Versions: cpp-1.3.0
> Reporter: Phillip Cloud
> Assignee: Phillip Cloud
>
> These are valid in the parquet spec, but it seems like no system in use today
> implements a writer for this type.
> We should determine whether this is YAGNI, or if it's actually in use
> anywhere.
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