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https://issues.apache.org/jira/browse/HIVE-1792?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12935232#action_12935232
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Namit Jain commented on HIVE-1792:
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//set task tag
199 if(this.taskTag == Task.CONVERTED_LOCAL_MAPJOIN) {
200 backupTask.setTaskTag(Task.BACKUP_COMMON_JOIN);
201 }
This should not be added to a task - task does not interpret these tags - it is
a black box for the tasks.
This logic should be present in MapJoinResolver - it can be inferred at compile
time
> track the joins which are being converted to map-join automatically
> -------------------------------------------------------------------
>
> Key: HIVE-1792
> URL: https://issues.apache.org/jira/browse/HIVE-1792
> Project: Hive
> Issue Type: New Feature
> Components: Query Processor
> Affects Versions: 0.7.0
> Reporter: Liyin Tang
> Assignee: Liyin Tang
> Fix For: 0.7.0
>
> Attachments: hive-1792-1.patch, hive-1792-2.patch, hive-1792-3.patch
>
>
> We should be able to track how many queries (join) got converted to
> map-join
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