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https://issues.apache.org/jira/browse/HIVE-18702?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Oleksiy Sayankin updated HIVE-18702:
------------------------------------
Status: In Progress (was: Patch Available)
> INSERT OVERWRITE TABLE doesn't clean the table directory before overwriting
> ---------------------------------------------------------------------------
>
> Key: HIVE-18702
> URL: https://issues.apache.org/jira/browse/HIVE-18702
> Project: Hive
> Issue Type: Bug
> Affects Versions: 2.3.2
> Reporter: Oleksiy Sayankin
> Assignee: Oleksiy Sayankin
> Priority: Major
> Fix For: 3.0.0, 2.3.3
>
> Attachments: HIVE-18702.1.patch
>
>
> Enable Hive on TEZ. (MR works fine).
> *STEP 1. Create test data*
> {code}
> nano /home/test/users.txt
> {code}
> Add to file:
> {code}
> Peter,34
> John,25
> Mary,28
> {code}
> {code}
> hadoop fs -mkdir /bug
> hadoop fs -copyFromLocal /home/test/users.txt /bug
> hadoop fs -ls /bug
> {code}
> *EXPECTED RESULT:*
> {code}
> Found 2 items
>
> -rwxr-xr-x 3 root root 25 2015-10-15 16:11 /bug/users.txt
> {code}
> *STEP 2. Upload data to hive*
> {code}
> create external table bug(name string, age int) ROW FORMAT DELIMITED FIELDS
> TERMINATED BY ',' LINES TERMINATED BY '\n' LOCATION '/bug';
> select * from bug;
> {code}
> *EXPECTED RESULT:*
> {code}
> OK
> Peter 34
> John 25
> Mary 28
> {code}
> {code}
> create external table bug1(name string, age int) ROW FORMAT DELIMITED FIELDS
> TERMINATED BY ',' LINES TERMINATED BY '\n' LOCATION '/bug1';
> insert overwrite table bug select * from bug1;
> select * from bug;
> {code}
> *EXPECTED RESULT:*
> {code}
> OK
> Time taken: 0.097 seconds
> {code}
> *ACTUAL RESULT:*
> {code}
> hive> select * from bug;
> OK
> Peter 34
> John 25
> Mary 28
> Time taken: 0.198 seconds, Fetched: 3 row(s)
> {code}
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