[
https://issues.apache.org/jira/browse/HIVE-22079?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16937500#comment-16937500
]
Hive QA commented on HIVE-22079:
--------------------------------
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12981262/HIVE-22079.8.patch
{color:red}ERROR:{color} -1 due to no test(s) being added or modified.
{color:green}SUCCESS:{color} +1 due to 17000 tests passed
Test results:
https://builds.apache.org/job/PreCommit-HIVE-Build/18715/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/18715/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-18715/
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: 12981262 - PreCommit-HIVE-Build
> Post order walker for iterating over expression tree
> ----------------------------------------------------
>
> Key: HIVE-22079
> URL: https://issues.apache.org/jira/browse/HIVE-22079
> Project: Hive
> Issue Type: Improvement
> Components: Logical Optimizer, Physical Optimizer
> Affects Versions: 4.0.0
> Reporter: Vineet Garg
> Assignee: Vineet Garg
> Priority: Major
> Labels: pull-request-available
> Attachments: HIVE-22079.1.patch, HIVE-22079.2.patch,
> HIVE-22079.3.patch, HIVE-22079.4.patch, HIVE-22079.5.patch,
> HIVE-22079.6.patch, HIVE-22079.7.patch, HIVE-22079.8.patch
>
> Time Spent: 1h
> Remaining Estimate: 0h
>
> Current {{DefaultGraphWalker}} is used to iterate over an expression tree.
> This walker uses hash map to keep track of visited/processed nodes. If an
> expression tree is large this adds significant overhead due to map lookup.
> For an expression trees we can instead use post order traversal and avoid
> using map.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
