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https://issues.apache.org/jira/browse/HIVE-23282?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17099221#comment-17099221
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Hive QA commented on HIVE-23282:
--------------------------------
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/13001991/HIVE-23282.6.patch
{color:red}ERROR:{color} -1 due to no test(s) being added or modified.
{color:green}SUCCESS:{color} +1 due to 17201 tests passed
Test results:
https://builds.apache.org/job/PreCommit-HIVE-Build/22122/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/22122/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-22122/
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: 13001991 - PreCommit-HIVE-Build
> Reduce number of DB calls in ObjectStore::getPartitionsByExprInternal
> ---------------------------------------------------------------------
>
> Key: HIVE-23282
> URL: https://issues.apache.org/jira/browse/HIVE-23282
> Project: Hive
> Issue Type: Improvement
> Components: Metastore
> Reporter: Rajesh Balamohan
> Assignee: Attila Magyar
> Priority: Major
> Attachments: HIVE-23282.1.patch, HIVE-23282.3.patch,
> HIVE-23282.5.patch, HIVE-23282.6.patch, image-2020-04-23-14-07-06-077.png
>
>
> ObjectStore::getPartitionsByExprInternal internally uses Table information
> for getting partitionKeys, table, catalog name.
>
> For this, it ends up populating entire table data from DB (including skew
> column, parameters, sort, bucket cols etc). This makes it a lot more
> expensive call. It would be good to check if MTable itself can be used
> instead of Table.
> [https://github.com/apache/hive/blob/master/standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/ObjectStore.java#L3327]
> [https://github.com/apache/hive/blob/master/standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/ObjectStore.java#L3669]
>
> !image-2020-04-23-14-07-06-077.png|width=665,height=592!
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