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https://issues.apache.org/jira/browse/HIVE-15995?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16360935#comment-16360935
 ] 

Hive QA commented on HIVE-15995:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
|| || || || {color:brown} Prechecks {color} ||
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue}  0m  
0s{color} | {color:blue} Findbugs executables are not available. {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 
25s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:red}-1{color} | {color:red} mvninstall {color} | {color:red}  3m 
47s{color} | {color:red} root in master failed. {color} |
| {color:red}-1{color} | {color:red} compile {color} | {color:red}  2m 
43s{color} | {color:red} root in master failed. {color} |
| {color:red}-1{color} | {color:red} compile {color} | {color:red}  1m 
31s{color} | {color:red} ql in master failed. {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  4m 
20s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  8m 
45s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m  
8s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  7m 
53s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  6m 
44s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} javac {color} | {color:red}  5m 32s{color} 
| {color:red} root generated 29 new + 5 unchanged - 2 fixed = 34 total (was 7) 
{color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  1m 
12s{color} | {color:green} ql generated 0 new + 5 unchanged - 44 fixed = 5 
total (was 49) {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red}  2m 
18s{color} | {color:red} root: The patch generated 4 new + 825 unchanged - 0 
fixed = 829 total (was 825) {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red}  0m 
51s{color} | {color:red} ql: The patch generated 4 new + 825 unchanged - 0 
fixed = 829 total (was 825) {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} javadoc {color} | {color:red}  6m 
14s{color} | {color:red} root generated 1 new + 335 unchanged - 0 fixed = 336 
total (was 335) {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} asflicense {color} | {color:red}  0m 
13s{color} | {color:red} The patch generated 49 ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 47m 15s{color} | 
{color:black} {color} |
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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/dev-support/hive-personality.sh |
| git revision | master / 887233d |
| Default Java | 1.8.0_111 |
| mvninstall | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-9173/yetus/branch-mvninstall-root.txt
 |
| compile | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-9173/yetus/branch-compile-root.txt
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| compile | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-9173/yetus/branch-compile-ql.txt
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| javac | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-9173/yetus/diff-compile-javac-root.txt
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| checkstyle | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-9173/yetus/diff-checkstyle-root.txt
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| checkstyle | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-9173/yetus/diff-checkstyle-ql.txt
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| javadoc | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-9173/yetus/diff-javadoc-javadoc-root.txt
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| asflicense | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-9173/yetus/patch-asflicense-problems.txt
 |
| modules | C: . ql U: . |
| Console output | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-9173/yetus.txt |
| Powered by | Apache Yetus    http://yetus.apache.org |


This message was automatically generated.



> Syncing metastore table with serde schema
> -----------------------------------------
>
>                 Key: HIVE-15995
>                 URL: https://issues.apache.org/jira/browse/HIVE-15995
>             Project: Hive
>          Issue Type: Bug
>          Components: Metastore
>    Affects Versions: 1.2.1, 2.1.0, 3.0.0
>            Reporter: Michal Ferlinski
>            Assignee: Adam Szita
>            Priority: Major
>         Attachments: HIVE-15995.1.patch, HIVE-15995.2.patch, 
> HIVE-15995.patch, cx1.avsc, cx2.avsc
>
>
> Hive enables table schema evolution via properties. For avro e.g. we can 
> alter the 'avro.schema.url' property to update table schema to the next 
> version. Updating properties however doesn't affect column list stored in 
> metastore DB so the table is not in the newest version when returned from 
> metastore API. This is problem for tools working with metastore (e.g. Presto).
> To solve this issue I suggest to introduce new DDL statement syncing 
> metastore columns with those from serde:
> {code}
> ALTER TABLE user_test1 UPDATE COLUMNS
> {code}
> Note that this is format independent solution. 
> To reproduce, follow the instructions below:
> - Create table based on avro schema version 1 (cxv1.avsc)
> {code}
> CREATE EXTERNAL TABLE user_test1
>   PARTITIONED BY (dt string)
>   ROW FORMAT SERDE
>   'org.apache.hadoop.hive.serde2.avro.AvroSerDe'
>   STORED AS INPUTFORMAT
>   'org.apache.hadoop.hive.ql.io.avro.AvroContainerInputFormat'
>   OUTPUTFORMAT
>   'org.apache.hadoop.hive.ql.io.avro.AvroContainerOutputFormat'
>   LOCATION
>   '/tmp/schema-evolution/user_test1'
>   TBLPROPERTIES ('avro.schema.url'='/tmp/schema-evolution/cx1.avsc');
> {code}
> - Update schema to version 2 (cx2.avsc)
> {code}
> ALTER TABLE user_test1 SET TBLPROPERTIES ('avro.schema.url' = 
> '/tmp/schema-evolution/cx2.avsc');
> {code}
> - Print serde columns (top info) and metastore columns (Detailed Table 
> Information):
> {code}
> DESCRIBE EXTENDED user_test1
> {code}



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