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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-11548) HCatLoader should support predicate pushdown.
Date Tue, 25 Aug 2015 10:05:46 GMT

    [ https://issues.apache.org/jira/browse/HIVE-11548?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14711032#comment-14711032
] 

Hive QA commented on HIVE-11548:
--------------------------------



{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/12752103/HIVE-11548.1.patch

{color:red}ERROR:{color} -1 due to 2 failed/errored test(s), 9377 tests executed
*Failed tests:*
{noformat}
org.apache.hive.hcatalog.api.TestHCatClient.testTableSchemaPropagation
org.apache.hive.hcatalog.hbase.TestPigHBaseStorageHandler.testPigFilterProjection
{noformat}

Test results: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/5059/testReport
Console output: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/5059/console
Test logs: http://ec2-174-129-184-35.compute-1.amazonaws.com/logs/PreCommit-HIVE-TRUNK-Build-5059/

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: 2 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12752103 - PreCommit-HIVE-TRUNK-Build

> HCatLoader should support predicate pushdown.
> ---------------------------------------------
>
>                 Key: HIVE-11548
>                 URL: https://issues.apache.org/jira/browse/HIVE-11548
>             Project: Hive
>          Issue Type: New Feature
>          Components: HCatalog
>            Reporter: Mithun Radhakrishnan
>            Assignee: Mithun Radhakrishnan
>         Attachments: HIVE-11548.1.patch
>
>
> When one uses {{HCatInputFormat}}/{{HCatLoader}} to read from file-formats that support
predicate pushdown (such as ORC, with {{hive.optimize.index.filter=true}}), one sees that
the predicates aren't actually pushed down into the storage layer.
> The forthcoming patch should allow for filter-pushdown, if any of the partitions being
scanned with {{HCatLoader}} support the functionality. The patch should technically allow
the same for users of {{HCatInputFormat}}, but I don't currently have a neat interface to
build a compound predicate-expression. Will add this separately, if required.



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