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Posted to dev@hive.apache.org by "Zheng Shao (JIRA)" <ji...@apache.org> on 2009/04/30 07:13:30 UTC

[jira] Updated: (HIVE-460) Improve ColumnPruner to prune more aggressively and keep column information for input tables

     [ https://issues.apache.org/jira/browse/HIVE-460?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Zheng Shao updated HIVE-460:
----------------------------

    Attachment: HIVE-460.1.patch

This patch illustrates my idea. However it does not pass all the tests, and an elegant fix will depend on HIVE-153

> Improve ColumnPruner to prune more aggressively and keep column information for input tables
> --------------------------------------------------------------------------------------------
>
>                 Key: HIVE-460
>                 URL: https://issues.apache.org/jira/browse/HIVE-460
>             Project: Hadoop Hive
>          Issue Type: Improvement
>          Components: Query Processor
>            Reporter: Zheng Shao
>         Attachments: HIVE-460.1.patch
>
>
> This is required for column-based table format.

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