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https://issues.apache.org/jira/browse/PARQUET-428?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15102254#comment-15102254
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Ryan Blue commented on PARQUET-428:
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[~mdeepak], thanks for taking this on! You're right about the Hive mappings so
you'll need this to support DECIMAL and the current TIMESTAMP. A couple of
things to keep in mind on that eventual goal: first, while Hive maps decimal to
an underlying fixed, there are several primitive types allowed by the spec that
need to be supported when it comes time. I'm happy to help when it comes to
ensuring compatibility so just open up a JIRA and ping me. Second, the int96
timestamp type has a lot of problems that I'm trying to fix in various
processing engines. Again, when it comes time to implement we can help you
through the compatibility story.
> Support INT96 and FIXED_LEN_BYTE_ARRAY types
> --------------------------------------------
>
> Key: PARQUET-428
> URL: https://issues.apache.org/jira/browse/PARQUET-428
> Project: Parquet
> Issue Type: Improvement
> Components: parquet-cpp
> Reporter: Deepak Majeti
>
> I would like to add support for INT96 and FIXED_LEN_BYTE_ARRAY parquet types.
> Hive data types DATE and TIMESTAMP get mapped to INT96 parquet type.
> Hive DECIMAL gets mapped to parquet FIXED_LEN_BYTE_ARRAY type.
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