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https://issues.apache.org/jira/browse/HIVE-23006?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17082232#comment-17082232
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Hive QA commented on HIVE-23006:
--------------------------------



Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12999753/HIVE-23006.08.patch

{color:green}SUCCESS:{color} +1 due to 2 test(s) being added or modified.

{color:green}SUCCESS:{color} +1 due to 18218 tests passed

Test results: 
https://builds.apache.org/job/PreCommit-HIVE-Build/21600/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/21600/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-21600/

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: 12999753 - PreCommit-HIVE-Build

> Basic compiler support for Probe MapJoin
> ----------------------------------------
>
>                 Key: HIVE-23006
>                 URL: https://issues.apache.org/jira/browse/HIVE-23006
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Panagiotis Garefalakis
>            Assignee: Panagiotis Garefalakis
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: HIVE-23006.01.patch, HIVE-23006.02.patch, 
> HIVE-23006.03.patch, HIVE-23006.04.patch, HIVE-23006.05.patch, 
> HIVE-23006.06.patch, HIVE-23006.07.patch, HIVE-23006.08.patch
>
>          Time Spent: 3h
>  Remaining Estimate: 0h
>
> The decision of pushing down information to the Record reader (potentially 
> reducing decoding time by row-level filtering) should be done at query 
> compilation time.
> This patch adds an extra optimisation step with the goal of finding Table 
> Scan operators that could reduce the number of rows decoded at runtime using 
> extra available information.
> It currently looks for all the available MapJoin operators that could use the 
> smaller HashTable on the probing side (where TS is) to filter-out rows that 
> would never match. 
> To do so the HashTable information is pushed down to the TS properties and 
> then propagated as part of MapWork.
> If the a single TS is used by multiple operators (shared-word), this rule can 
> not be applied.
> This rule can be extended to support static filter expressions like:
> _select * from sales where sold_state = 'PR';_
> This optimisation manly targets the Tez execution engine running on Llap.



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