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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-18873) Skipping predicate pushdown for MR silently at HiveInputFormat can cause storage handlers to produce erroneous result
Date Fri, 24 Aug 2018 09:51:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-18873?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16591421#comment-16591421
] 

Hive QA commented on HIVE-18873:
--------------------------------



Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12936884/HIVE-18873.2.patch

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

{color:red}ERROR:{color} -1 due to 1 failed/errored test(s), 14896 tests executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestAccumuloCliDriver.testCliDriver[accumulo_joins] (batchId=256)
{noformat}

Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/13437/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/13437/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-13437/

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
Tests exited with: TestsFailedException: 1 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12936884 - PreCommit-HIVE-Build

> Skipping predicate pushdown for MR silently at HiveInputFormat can cause storage handlers
to produce erroneous result
> ---------------------------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-18873
>                 URL: https://issues.apache.org/jira/browse/HIVE-18873
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 3.0.0
>            Reporter: Ankit Singhal
>            Assignee: Ankit Singhal
>            Priority: Major
>         Attachments: HIVE-18873.2.patch, HIVE-18873.patch
>
>
> {code:java}
> // disable filter pushdown for mapreduce when there are more than one table aliases,
>     // since we don't clone jobConf per alias
>     if (mrwork != null && mrwork.getAliases() != null && mrwork.getAliases().size()
> 1 &&
>       jobConf.get(ConfVars.HIVE_EXECUTION_ENGINE.varname).equals("mr")) {
>       return;
>     }
> {code}
> I believe this needs to be handled at OpProcFactory so that hive doesn't believe that
predicate is handled by storage handler.



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