[jira] [Commented] (PARQUET-1160) [C++] Determine whether we need to implement BYTE_ARRAY-backed Decimal reads

["Ryan Blue (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PARQUET-1160?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16253764#comment-16253764 ] 

Ryan Blue commented on PARQUET-1160:
------------------------------------

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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