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https://issues.apache.org/jira/browse/HIVE-14018?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15335000#comment-15335000
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Hive QA commented on HIVE-14018:
--------------------------------
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12811059/HIVE-14018.1.patch
{color:red}ERROR:{color} -1 due to no test(s) being added or modified.
{color:red}ERROR:{color} -1 due to 9 failed/errored test(s), 10233 tests
executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_acid_globallimit
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_list_bucket_dml_12
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_repair
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_stats_list_bucket
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_subquery_multiinsert
org.apache.hadoop.hive.cli.TestMiniSparkOnYarnCliDriver.testCliDriver_index_bitmap3
org.apache.hadoop.hive.cli.TestMinimrCliDriver.testCliDriver_table_nonprintable
org.apache.hadoop.hive.ql.metadata.TestHiveMetaStoreChecker.testPartitionsCheck
org.apache.hadoop.hive.ql.metadata.TestHiveMetaStoreChecker.testTableCheck
{noformat}
Test results:
https://builds.apache.org/job/PreCommit-HIVE-MASTER-Build/142/testReport
Console output:
https://builds.apache.org/job/PreCommit-HIVE-MASTER-Build/142/console
Test logs:
http://ec2-50-18-27-0.us-west-1.compute.amazonaws.com/logs/PreCommit-HIVE-MASTER-Build-142/
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: 9 tests failed
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12811059 - PreCommit-HIVE-MASTER-Build
> Make IN clause row selectivity estimation customizable
> ------------------------------------------------------
>
> Key: HIVE-14018
> URL: https://issues.apache.org/jira/browse/HIVE-14018
> Project: Hive
> Issue Type: Improvement
> Components: Statistics
> Affects Versions: 2.1.0, 2.2.0
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Priority: Minor
> Attachments: HIVE-14018.1.patch, HIVE-14018.patch
>
>
> After HIVE-13287 went in, we calculate IN clause estimates natively (instead
> of just dividing incoming number of rows by 2). However, as the distribution
> of values of the columns is considered uniform, we might end up heavily
> underestimating/overestimating the resulting number of rows.
> This issue is to add a factor that multiplies the IN clause estimation so we
> can alleviate this problem. The solution is not very elegant, but it is the
> best we can do until we have histograms to improve our estimate.
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