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Posted to dev@hive.apache.org by "Liyin Tang (JIRA)" <ji...@apache.org> on 2010/11/13 02:22:15 UTC
[jira] Updated: (HIVE-1642) Convert join queries to map-join based
on size of table/row
[ https://issues.apache.org/jira/browse/HIVE-1642?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Liyin Tang updated HIVE-1642:
-----------------------------
Attachment: hive_1642_1.patch
> 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_1.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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