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https://issues.apache.org/jira/browse/HIVE-19684?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16491582#comment-16491582
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Hive QA commented on HIVE-19684:
--------------------------------
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12925223/HIVE-19684.3.patch
{color:green}SUCCESS:{color} +1 due to 1 test(s) being added or modified.
{color:green}SUCCESS:{color} +1 due to 14393 tests passed
Test results:
https://builds.apache.org/job/PreCommit-HIVE-Build/11224/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/11224/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-11224/
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: 12925223 - PreCommit-HIVE-Build
> Hive stats optimizer wrongly uses stats against non native tables
> -----------------------------------------------------------------
>
> Key: HIVE-19684
> URL: https://issues.apache.org/jira/browse/HIVE-19684
> Project: Hive
> Issue Type: Bug
> Components: Druid integration, Physical Optimizer
> Reporter: slim bouguerra
> Assignee: slim bouguerra
> Priority: Blocker
> Attachments: HIVE-19684.2.patch, HIVE-19684.3.patch, HIVE-19684.patch
>
>
> Stats of non native tables are inaccurate, thus queries over non native
> tables can not optimized by stats optimizer.
> Take example of query
> {code}
> Explain select count(*) from (select `__time` from druid_test_table limit 1)
> as src ;
> {code}
> the plan will be reduced to
> {code}
> POSTHOOK: query: explain extended select count(*) from (select `__time` from
> druid_test_table limit 1) as src
> POSTHOOK: type: QUERY
> STAGE DEPENDENCIES:
> Stage-0 is a root stage
> STAGE PLANS:
> Stage: Stage-0
> Fetch Operator
> limit: 1
> Processor Tree:
> ListSink
> {code}
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