add a column-major codec for data files
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Key: AVRO-806
URL: https://issues.apache.org/jira/browse/AVRO-806
Project: Avro
Issue Type: New Feature
Components: java, spec
Reporter: Doug Cutting
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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