[jira] [Commented] (AVRO-806) add a column-major codec for data files

["Jakob Homan (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AVRO-806?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13267017#comment-13267017 ] 

Jakob Homan commented on AVRO-806:
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The Avro Serde already exists: https://github.com/jghoman/haivvreo and is being ported to Hive directly.  I'd love to test this format with it, but I in all likelihood won't have time in the next month.  If someone wants to do that, it'd be great.  Shouldn't be too hard at all.
                
> add a column-major codec for data files
> ---------------------------------------
>
>                 Key: AVRO-806
>                 URL: https://issues.apache.org/jira/browse/AVRO-806
>             Project: Avro
>          Issue Type: New Feature
>          Components: java, spec
>            Reporter: Doug Cutting
>            Assignee: Doug Cutting
>             Fix For: 1.7.0
>
>         Attachments: AVRO-806-v2.patch, AVRO-806.patch, avro-file-columnar.pdf
>
>
> Define a codec that, when a data file's schema is a record schema, writes blocks within the file in column-major order.  This would permit better compression and also permit efficient skipping of fields that are not of interest.

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