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https://issues.apache.org/jira/browse/HIVE-16867?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16045271#comment-16045271
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Hive QA commented on HIVE-16867:
--------------------------------
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12872289/HIVE-16867.01.patch
{color:red}ERROR:{color} -1 due to no test(s) being added or modified.
{color:red}ERROR:{color} -1 due to 7 failed/errored test(s), 10829 tests
executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestBeeLineDriver.testCliDriver[insert_overwrite_local_directory_1]
(batchId=237)
org.apache.hadoop.hive.cli.TestMiniLlapCliDriver.testCliDriver[orc_ppd_basic]
(batchId=140)
org.apache.hadoop.hive.cli.TestMiniLlapCliDriver.testCliDriver[unionDistinct_1]
(batchId=141)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[multiMapJoin2]
(batchId=158)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[vector_if_expr]
(batchId=145)
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver[explainanalyze_2]
(batchId=99)
org.apache.hadoop.hive.cli.TestPerfCliDriver.testCliDriver[query14]
(batchId=232)
{noformat}
Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/5610/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/5610/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-5610/
Messages:
{noformat}
Executing org.apache.hive.ptest.execution.TestCheckPhase
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
Tests exited with: TestsFailedException: 7 tests failed
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12872289 - PreCommit-HIVE-Build
> Extend shared scan optimizer to reuse computation from other operators
> ----------------------------------------------------------------------
>
> Key: HIVE-16867
> URL: https://issues.apache.org/jira/browse/HIVE-16867
> Project: Hive
> Issue Type: Improvement
> Components: Physical Optimizer
> Affects Versions: 3.0.0
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Attachments: HIVE-16867.01.patch, HIVE-16867.patch
>
>
> Follow-up of the work in HIVE-16602.
> HIVE-16602 introduced an optimization that identifies scans on input tables
> that can be merged so the data is read only once.
> This extension to that rule allows to reuse the computation that is done in
> the work containing those scans. In particular, we traverse both parts of the
> plan upstream and reuse the operators if possible.
> Currently, the optimizer will not go beyond the output edge(s) of that work.
> Follow-up extensions might remove this limitation.
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