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https://issues.apache.org/jira/browse/HIVE-22978?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17055852#comment-17055852
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Hive QA commented on HIVE-22978:
--------------------------------
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12996233/HIVE-22978.02.patch
{color:green}SUCCESS:{color} +1 due to 1 test(s) being added or modified.
{color:green}SUCCESS:{color} +1 due to 18093 tests passed
Test results:
https://builds.apache.org/job/PreCommit-HIVE-Build/21049/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/21049/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-21049/
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: 12996233 - PreCommit-HIVE-Build
> Fix decimal precision and scale inference for aggregate rewriting in Calcite
> ----------------------------------------------------------------------------
>
> Key: HIVE-22978
> URL: https://issues.apache.org/jira/browse/HIVE-22978
> Project: Hive
> Issue Type: Bug
> Components: CBO
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Priority: Major
> Labels: pull-request-available
> Attachments: HIVE-22978.01.patch, HIVE-22978.02.patch,
> HIVE-22978.patch
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> Calcite rules can do rewritings of aggregate functions, e.g., {{avg}} into
> {{sum/count}}. When type of {{avg}} is decimal, inference of intermediate
> precision and scale for the division is not done correctly. The reason is
> that we miss support for some types in method {{getDefaultPrecision}} in
> {{HiveTypeSystemImpl}}. Additionally, {{deriveSumType}} should be overridden
> in {{HiveTypeSystemImpl}} to abide by the Hive semantics for sum aggregate
> type inference.
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