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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-4367) enhance TRUNCATE syntex to drop data of external table
Date Sat, 23 Jun 2018 00:30:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-4367?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16520917#comment-16520917
] 

Hive QA commented on HIVE-4367:
-------------------------------

| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} @author {color} | {color:green}  0m  0s{color} |
{color:green} The patch does not contain any @author tags. {color} |
|| || || || {color:brown} master Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 37s{color} | {color:blue}
Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  7m 13s{color}
| {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m  5s{color} |
{color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 44s{color}
| {color:green} master passed {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue}  3m 57s{color} | {color:blue}
ql in master has 2282 extant Findbugs warnings. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 56s{color} |
{color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m  9s{color} | {color:blue}
Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  1m 23s{color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m  2s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  1m  2s{color} | {color:green}
the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 41s{color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green}  0m  0s{color}
| {color:green} The patch has no whitespace issues. {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red}  4m 15s{color} | {color:red}
ql generated 3 new + 2278 unchanged - 4 fixed = 2281 total (was 2282) {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 55s{color} |
{color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 13s{color}
| {color:green} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 23m 45s{color} | {color:black}
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|| Reason || Tests ||
| FindBugs | module:ql |
|  |  Should org.apache.hadoop.hive.ql.parse.HiveParser$DFA227 be a _static_ inner class?
 At HiveParser.java:inner class?  At HiveParser.java:[lines 46224-46237] |
|  |  Should org.apache.hadoop.hive.ql.parse.HiveParser$DFA271 be a _static_ inner class?
 At HiveParser.java:inner class?  At HiveParser.java:[lines 46561-46574] |
|  |  Should org.apache.hadoop.hive.ql.parse.HiveParser$DFA286 be a _static_ inner class?
 At HiveParser.java:inner class?  At HiveParser.java:[lines 46697-46710] |
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|| Subsystem || Report/Notes ||
| Optional Tests |  asflicense  javac  javadoc  findbugs  checkstyle  compile  |
| uname | Linux hiveptest-server-upstream 3.16.0-4-amd64 #1 SMP Debian 3.16.36-1+deb8u1 (2016-09-03)
x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /data/hiveptest/working/yetus_PreCommit-HIVE-Build-12004/dev-support/hive-personality.sh
|
| git revision | master / 23d2b80 |
| Default Java | 1.8.0_111 |
| findbugs | v3.0.0 |
| findbugs | http://104.198.109.242/logs//PreCommit-HIVE-Build-12004/yetus/new-findbugs-ql.html
|
| modules | C: itests ql U: . |
| Console output | http://104.198.109.242/logs//PreCommit-HIVE-Build-12004/yetus.txt |
| Powered by | Apache Yetus    http://yetus.apache.org |


This message was automatically generated.



> enhance  TRUNCATE syntex  to drop data of external table
> --------------------------------------------------------
>
>                 Key: HIVE-4367
>                 URL: https://issues.apache.org/jira/browse/HIVE-4367
>             Project: Hive
>          Issue Type: Improvement
>          Components: Query Processor
>    Affects Versions: 0.11.0
>            Reporter: caofangkun
>            Assignee: caofangkun
>            Priority: Minor
>         Attachments: HIVE-4367-1.patch, HIVE-4367.2.patch.txt, HIVE-4367.3.patch, HIVE-4367.4.patch
>
>
> In my use case ,
> sometimes I have to remove data of external tables to free up storage space of the cluster
.
> So it's necessary for to enhance the syntax like 
> "TRUNCATE TABLE srcpart_truncate PARTITION (dt='201130412') FORCE;"
> to remove data from EXTERNAL table.
> And I add a configuration property to enable remove data to Trash 
> <property>
>   <name>hive.truncate.skiptrash</name>
>   <value>false</value>
>   <description>
>      if true will remove data to trash, else false drop data immediately
>   </description>
> </property>
> For example :
> hive (default)> TRUNCATE TABLE external1 partition (ds='11'); 
> FAILED: Error in semantic analysis: Cannot truncate non-managed table external1
> hive (default)> TRUNCATE TABLE external1 partition (ds='11') FORCE;
> [2013-04-16 17:15:52]: Compile Start 
> [2013-04-16 17:15:52]: Compile End
> [2013-04-16 17:15:52]: OK
> [2013-04-16 17:15:52]: Time taken: 0.413 seconds
> hive (default)> set hive.truncate.skiptrash;
> hive.truncate.skiptrash=false
> hive (default)> set hive.truncate.skiptrash=true; 
> hive (default)> TRUNCATE TABLE external1 partition (ds='12') FORCE;
> [2013-04-16 17:16:21]: Compile Start 
> [2013-04-16 17:16:21]: Compile End
> [2013-04-16 17:16:21]: OK
> [2013-04-16 17:16:21]: Time taken: 0.143 seconds
> hive (default)> dfs -ls /user/test/.Trash/Current/; 
> Found 1 items
> drwxr-xr-x -test supergroup 0 2013-04-16 17:06 /user/test/.Trash/Current/ds=11



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