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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-16809) Improve filter condition for correlated subqueries
Date Fri, 02 Jun 2017 05:49:04 GMT

    [ https://issues.apache.org/jira/browse/HIVE-16809?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16034182#comment-16034182
] 

Hive QA commented on HIVE-16809:
--------------------------------



Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12870875/HIVE-16809.1.patch

{color:red}ERROR:{color} -1 due to no test(s) being added or modified.

{color:red}ERROR:{color} -1 due to 18 failed/errored test(s), 10813 tests executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[cbo_subq_exists] (batchId=73)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[mapjoin1] (batchId=5)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[subquery_in_having] (batchId=55)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[subquery_notexists] (batchId=84)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[subquery_notexists_having] (batchId=80)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[subquery_notin_having] (batchId=47)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[subquery_unqualcolumnrefs] (batchId=17)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[view_cbo] (batchId=64)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[cbo_subq_exists] (batchId=159)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[cbo_subq_not_in] (batchId=154)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[explainuser_1] (batchId=151)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[subquery_in] (batchId=156)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[subquery_multi] (batchId=147)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[subquery_notin] (batchId=157)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[subquery_views] (batchId=146)
org.apache.hadoop.hive.cli.TestNegativeCliDriver.testCliDriver[subquery_notin_implicit_gby]
(batchId=89)
org.apache.hadoop.hive.cli.TestSparkCliDriver.testCliDriver[cbo_subq_not_in] (batchId=121)
org.apache.hadoop.hive.cli.TestSparkCliDriver.testCliDriver[subquery_in] (batchId=127)
{noformat}

Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/5508/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/5508/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-5508/

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: 18 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12870875 - PreCommit-HIVE-Build

> Improve filter condition for correlated subqueries
> --------------------------------------------------
>
>                 Key: HIVE-16809
>                 URL: https://issues.apache.org/jira/browse/HIVE-16809
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Vineet Garg
>            Assignee: Vineet Garg
>         Attachments: HIVE-16809.1.patch
>
>
> A filter condition such as {{col1=col1}} generated during rewrite of subqueries is not
folded/rewritten into {{co1 is not null}}. This messes up the statistic estimation and could
result in bad plans.



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