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https://issues.apache.org/jira/browse/HIVE-21462?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16795086#comment-16795086
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Hive QA commented on HIVE-21462:
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| (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}  1m 
44s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  7m 
15s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  7m 
36s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
25s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  7m 
34s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} whitespace {color} | {color:red}  0m  
0s{color} | {color:red} The patch 21 line(s) with tabs. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  7m 
31s{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} 32m 48s{color} | 
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Optional Tests |  asflicense  javac  javadoc  |
| 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-16556/dev-support/hive-personality.sh
 |
| git revision | master / 36bd89d |
| Default Java | 1.8.0_111 |
| whitespace | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-16556/yetus/whitespace-tabs.txt
 |
| modules | C: standalone-metastore/metastore-server . U: . |
| Console output | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-16556/yetus.txt |
| Powered by | Apache Yetus    http://yetus.apache.org |


This message was automatically generated.



> Upgrading SQL server backed metastore when changing data type of a column 
> with constraints
> ------------------------------------------------------------------------------------------
>
>                 Key: HIVE-21462
>                 URL: https://issues.apache.org/jira/browse/HIVE-21462
>             Project: Hive
>          Issue Type: Bug
>          Components: Standalone Metastore
>            Reporter: Ashutosh Bapat
>            Assignee: Ashutosh Bapat
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 4.0.0
>
>         Attachments: HIVE-21462.01.patch
>
>   Original Estimate: 24h
>          Time Spent: 10m
>  Remaining Estimate: 23h 50m
>
> SQL server does not allow changing data type of a column which has a 
> constraint or an index on it. The constraint or the index needs to be dropped 
> before changing the data type and needs to be recreated after that. Metastore 
> upgrade scripts aren't doing this and thus upgrade fails.



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