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