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https://issues.apache.org/jira/browse/HIVE-20255?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16572606#comment-16572606
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Hive QA commented on HIVE-20255:
--------------------------------
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12934736/HIVE-20255.3.patch
{color:red}ERROR:{color} -1 due to no test(s) being added or modified.
{color:green}SUCCESS:{color} +1 due to 14868 tests passed
Test results:
https://builds.apache.org/job/PreCommit-HIVE-Build/13093/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/13093/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-13093/
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: 12934736 - PreCommit-HIVE-Build
> Review LevelOrderWalker.java
> ----------------------------
>
> Key: HIVE-20255
> URL: https://issues.apache.org/jira/browse/HIVE-20255
> Project: Hive
> Issue Type: Improvement
> Components: Query Planning
> Affects Versions: 3.0.0, 4.0.0
> Reporter: BELUGA BEHR
> Assignee: BELUGA BEHR
> Priority: Minor
> Attachments: HIVE-20255.1.patch, HIVE-20255.2.patch,
> HIVE-20255.3.patch
>
>
> https://github.com/apache/hive/blob/6d890faf22fd1ede3658a5eed097476eab3c67e9/ql/src/java/org/apache/hadoop/hive/ql/lib/LevelOrderWalker.java
> * Make code more concise
> * Fix some check style issues
> {code}
> if (toWalk.get(index).getChildren() != null) {
> for(Node child : toWalk.get(index).getChildren()) {
> {code}
> Actually, the underlying implementation of {{getChildren()}} has to do some
> real work, so do not throw away the work after checking for null. Simply
> call once and store the results.
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