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https://issues.apache.org/jira/browse/HIVE-21292?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16777239#comment-16777239
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Hive QA commented on HIVE-21292:
--------------------------------



Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12960053/HIVE-21292.13.patch

{color:green}SUCCESS:{color} +1 due to 1 test(s) being added or modified.

{color:green}SUCCESS:{color} +1 due to 15811 tests passed

Test results: 
https://builds.apache.org/job/PreCommit-HIVE-Build/16238/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/16238/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-16238/

Messages:
{noformat}
Executing org.apache.hive.ptest.execution.TestCheckPhase
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.YetusPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12960053 - PreCommit-HIVE-Build

> Break up DDLTask 1 - extract Database related operations
> --------------------------------------------------------
>
>                 Key: HIVE-21292
>                 URL: https://issues.apache.org/jira/browse/HIVE-21292
>             Project: Hive
>          Issue Type: Improvement
>          Components: Hive
>    Affects Versions: 3.1.1
>            Reporter: Miklos Gergely
>            Assignee: Miklos Gergely
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 4.0.0
>
>         Attachments: HIVE-21292.01.patch, HIVE-21292.02.patch, 
> HIVE-21292.03.patch, HIVE-21292.04.patch, HIVE-21292.05.patch, 
> HIVE-21292.06.patch, HIVE-21292.07.patch, HIVE-21292.08.patch, 
> HIVE-21292.09.patch, HIVE-21292.10.patch, HIVE-21292.11.patch, 
> HIVE-21292.12.patch, HIVE-21292.13.patch
>
>          Time Spent: 7h
>  Remaining Estimate: 0h
>
> DDLTask is a huge class, more than 5000 lines long. The related DDLWork is 
> also a huge class, which has a field for each DDL operation it supports. The 
> goal is to refactor these in order to have everything cut into more 
> handleable classes under the package  org.apache.hadoop.hive.ql.exec.ddl:
>  * have a separate class for each operation
>  * have a package for each operation group (database ddl, table ddl, etc), so 
> the amount of classes under a package is more manageable
>  * make all the requests (DDLDesc subclasses) immutable
>  * DDLTask should be agnostic to the actual operations
>  * right now let's ignore the issue of having some operations handled by 
> DDLTask which are not actual DDL operations (lock, unlock, desc...)
> In the interim time when there are two DDLTask and DDLWork classes in the 
> code base the new ones in the new package are called DDLTask2 and DDLWork2 
> thus avoiding the usage of fully qualified class names where both the old and 
> the new classes are in use.
> Step #1: extract all the database related operations from the old DDLTask, 
> and move them under the new package. Also create the new internal framework.



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