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https://issues.apache.org/jira/browse/HIVE-1582?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ning Zhang resolved HIVE-1582.
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Resolution: Not A Problem
Taked to Namit and Yongqiang, this is not a bug. INSERT OVERWRITE to (HDFS)
directory should be merged as before. INSERT OVERWRITE LOCAL DIRECTORY cannot
be merged and this is not the case.
> merge mapfiles task behaves incorrectly for 'inserting overwrite directory...'
> ------------------------------------------------------------------------------
>
> Key: HIVE-1582
> URL: https://issues.apache.org/jira/browse/HIVE-1582
> Project: Hadoop Hive
> Issue Type: Bug
> Reporter: He Yongqiang
>
> hive>
> >
> >
> > SET hive.input.format=org.apache.hadoop.hive.ql.io.HiveInputFormat;
> hive> SET hive.exec.compress.output=false;
> hive> INSERT OVERWRITE DIRECTORY 'xxxxx'
> > SELECT yyyy from a;
> Total MapReduce jobs = 2
> Launching Job 1 out of 2
> Number of reduce tasks is set to 0 since there's no reduce operator
> ......
> Ended Job = job_201008191557_54169
> Ended Job = 450290112, job is filtered out (removed at runtime).
> Launching Job 2 out of 2
> .....
> the second job should not get started.
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