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

["Raymie Stata (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AVRO-806?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Raymie Stata updated AVRO-806:
------------------------------


In about a month we will have some Hive benchmarks, but the data won't be very wide, so they won't be good for testing column-major formats.  However, maybe we should walk before we run: If someone puts Avro SerDe's in place against the regular Avro format, we could benchmark and maybe even help tune that configuration, which would provide a baseline for testing a column-major configuration.  (Unfortunately, we can't do the SerDe work itself.)
                
> 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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