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https://issues.apache.org/jira/browse/HIVE-1642?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Liyin Tang updated HIVE-1642:
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Attachment: hive-1642_5.patch
Add more descriptions to the configuration files.
Revert the DriverContext.
> Convert join queries to map-join based on size of table/row
> -----------------------------------------------------------
>
> Key: HIVE-1642
> URL: https://issues.apache.org/jira/browse/HIVE-1642
> Project: Hive
> Issue Type: Improvement
> Components: Query Processor
> Reporter: Namit Jain
> Assignee: Liyin Tang
> Fix For: 0.7.0
>
> Attachments: hive-1642_5.patch, hive_1642_1.patch, hive_1642_2.patch,
> hive_1642_4.patch
>
>
> Based on the number of rows and size of each table, Hive should automatically
> be able to convert a join into map-join.
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