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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-15056) Support index shifting for struct fields
Date Wed, 26 Oct 2016 20:58:59 GMT

    [ https://issues.apache.org/jira/browse/HIVE-15056?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15609650#comment-15609650
] 

Hive QA commented on HIVE-15056:
--------------------------------



Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12835390/HIVE-15056.2.patch

{color:green}SUCCESS:{color} +1 due to 1 test(s) being added or modified.

{color:red}ERROR:{color} -1 due to 3 failed/errored test(s), 10622 tests executed
*Failed tests:*
{noformat}
org.apache.hive.beeline.TestBeelineArgParsing.testAddLocalJarWithoutAddDriverClazz[0] (batchId=164)
org.apache.hive.beeline.TestBeelineArgParsing.testAddLocalJar[0] (batchId=164)
org.apache.hive.beeline.TestBeelineArgParsing.testAddLocalJar[1] (batchId=164)
{noformat}

Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/1827/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/1827/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-1827/

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: 3 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12835390 - PreCommit-HIVE-Build

> Support index shifting for struct fields
> ----------------------------------------
>
>                 Key: HIVE-15056
>                 URL: https://issues.apache.org/jira/browse/HIVE-15056
>             Project: Hive
>          Issue Type: Sub-task
>          Components: File Formats, Physical Optimizer, Serializers/Deserializers
>            Reporter: Chao Sun
>            Assignee: Chao Sun
>         Attachments: HIVE-15056.1.patch, HIVE-15056.2.patch
>
>
> In HIVE-13873, the following case doesn't work:
> {code}
> select s.c from tbl
> {code}
> where {{tbl}} is of schema:
> {code}
> a                   	int
> s                   	struct<b:int,c:string>
> {code}
> This is because currently we generate a "pruned" schema (in terms of {{GroupType}}) for
Parquet reader to scan the data. However, on the Hive side the object inspector still uses
the original schema. In particular, in this case for {{s.c}} the data returned by Parquet
reader is in index 0, but the object inspector tries to read it in index 1. Therefore, in
correct result will be returned.



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