[jira] [Commented] (HIVE-12309) TableScan should use column stats when available for better data size estimate

["Hive QA (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-12309?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14984235#comment-14984235 ] 

Hive QA commented on HIVE-12309:
--------------------------------



Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12769963/HIVE-12309.2.patch

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

{color:red}ERROR:{color} -1 due to 5 failed/errored test(s), 9742 tests executed
*Failed tests:*
{noformat}
TestMarkPartition - did not produce a TEST-*.xml file
org.apache.hadoop.hive.cli.TestHBaseCliDriver.testCliDriver_hbase_queries
org.apache.hadoop.hive.cli.TestNegativeCliDriver.testNegativeCliDriver_authorization_uri_import
org.apache.hadoop.hive.hwi.TestHWISessionManager.testHiveDriver
org.apache.hive.jdbc.TestSSL.testSSLVersion
{noformat}

Test results: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/5882/testReport
Console output: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/5882/console
Test logs: http://ec2-174-129-184-35.compute-1.amazonaws.com/logs/PreCommit-HIVE-TRUNK-Build-5882/

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: 5 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12769963 - PreCommit-HIVE-TRUNK-Build

> TableScan should use column stats when available for better data size estimate
> ------------------------------------------------------------------------------
>
>                 Key: HIVE-12309
>                 URL: https://issues.apache.org/jira/browse/HIVE-12309
>             Project: Hive
>          Issue Type: Improvement
>          Components: Statistics
>            Reporter: Ashutosh Chauhan
>            Assignee: Ashutosh Chauhan
>         Attachments: HIVE-12309.2.patch, HIVE-12309.patch
>
>
> Currently, all other operators use column stats to figure out data size, whereas TableScan relies on rawDataSize. This inconsistency can result in an inconsistency where TS may have lower Datasize then subsequent operators.



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