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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-6192) Optimize sum(1) to answer query using metadata
Date Thu, 16 Jan 2014 23:49:20 GMT

    [ https://issues.apache.org/jira/browse/HIVE-6192?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13874171#comment-13874171
] 

Hive QA commented on HIVE-6192:
-------------------------------



{color:red}Overall{color}: -1 at least one tests failed

Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12623492/HIVE-6192.2.patch

{color:red}ERROR:{color} -1 due to 1 failed/errored test(s), 4927 tests executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestNegativeMinimrCliDriver.testNegativeCliDriver_mapreduce_stack_trace_hadoop20
{noformat}

Test results: http://bigtop01.cloudera.org:8080/job/PreCommit-HIVE-Build/939/testReport
Console output: http://bigtop01.cloudera.org:8080/job/PreCommit-HIVE-Build/939/console

Messages:
{noformat}
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: 1 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12623492

> Optimize sum(1) to answer query using metadata
> ----------------------------------------------
>
>                 Key: HIVE-6192
>                 URL: https://issues.apache.org/jira/browse/HIVE-6192
>             Project: Hive
>          Issue Type: New Feature
>          Components: Query Processor, Statistics
>            Reporter: Ashutosh Chauhan
>            Assignee: Ashutosh Chauhan
>         Attachments: HIVE-6192.2.patch, HIVE-6192.patch
>
>
> sum(1) has same semantics as count(1) so it can also be optimized in similar fashion
by answering query using stats stored in metastore.



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