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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:
------------------------------------
    Fix Version/s: 3.0.0

> 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
>
>
> *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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