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From "Alan Gates (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (PIG-833) Storage access layer
Date Tue, 08 Sep 2009 21:06:57 GMT

     [ https://issues.apache.org/jira/browse/PIG-833?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Alan Gates resolved PIG-833.
----------------------------

       Resolution: Fixed
    Fix Version/s: 0.4.0

Patch was checked in a while ago.

> Storage access layer
> --------------------
>
>                 Key: PIG-833
>                 URL: https://issues.apache.org/jira/browse/PIG-833
>             Project: Pig
>          Issue Type: New Feature
>            Reporter: Jay Tang
>             Fix For: 0.4.0
>
>         Attachments: hadoop20.jar.bz2, PIG-833-zebra.patch, PIG-833-zebra.patch.bz2,
PIG-833-zebra.patch.bz2, TEST-org.apache.hadoop.zebra.pig.TestCheckin1.txt, test.out, zebra-javadoc.tgz
>
>
> A layer is needed to provide a high level data access abstraction and a tabular view
of data in Hadoop, and could free Pig users from implementing their own data storage/retrieval
code.  This layer should also include a columnar storage format in order to provide fast data
projection, CPU/space-efficient data serialization, and a schema language to manage physical
storage metadata.  Eventually it could also support predicate pushdown for further performance
improvement.  Initially, this layer could be a contrib project in Pig and become a hadoop
subproject later on.

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