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From "Oleksiy Sayankin (JIRA)" <j...@apache.org>
Subject [jira] [Work started] (HIVE-18702) INSERT OVERWRITE TABLE doesn't clean the table directory before overwriting
Date Wed, 28 Mar 2018 11:31:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-18702?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Work on HIVE-18702 started by Oleksiy Sayankin.
-----------------------------------------------
> 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, HIVE-18702.2.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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