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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-5788) select * fails for table after adding new columns using rcfile storage format
Date Thu, 14 Nov 2013 17:19:22 GMT

    [ https://issues.apache.org/jira/browse/HIVE-5788?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13822635#comment-13822635
] 

Hive QA commented on HIVE-5788:
-------------------------------



{color:green}Overall{color}: +1 all checks pass

Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12613659/HIVE-5788.1.patch

{color:green}SUCCESS:{color} +1 4612 tests passed

Test results: http://bigtop01.cloudera.org:8080/job/PreCommit-HIVE-Build/276/testReport
Console output: http://bigtop01.cloudera.org:8080/job/PreCommit-HIVE-Build/276/console

Messages:
{noformat}
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12613659

> select * fails for table after adding new columns using rcfile storage format
> -----------------------------------------------------------------------------
>
>                 Key: HIVE-5788
>                 URL: https://issues.apache.org/jira/browse/HIVE-5788
>             Project: Hive
>          Issue Type: Bug
>          Components: Serializers/Deserializers
>    Affects Versions: 0.12.0
>            Reporter: Szehon Ho
>            Assignee: Szehon Ho
>         Attachments: HIVE-5788.1.patch, HIVE-5788.patch
>
>
> Given the following tables:
> {code}
> select * from two;
> +-----+----+
> | id  | a  |
> +-----+----+
> | 1   | a  |
> | 2   | b  |
> +-----+----+
>  select * from three;
> +-----+----+----+
> | id  | a  | b  |
> +-----+----+----+
> | 1   | a  | z  |
> | 2   | b  | y  |
> | 3   | c  | x  |
> +-----+----+----+
> {code}
> Execute the following steps:
> {code}
> create table testrc (id bigint, a string) stored as rcfile;
> insert into table testrc select * from two;
> select * from testrc;  //returns correctly
> +-----+----+
> | id  | a  |
> +-----+----+
> | 1   | a  |
> | 2   | b  |
> +-----+----+
>  alter table testrc add columns (b string);
>  insert into table testrc select * from three;
> select * from testrc;  //new column returns null values
> +-----+----+----+
> | id  | a  | b  |
> +-----+----+----+
> | 1   | a  |    |
> | 2   | b  |    |
> | 1   | a  |    |
> | 2   | b  |    |
> | 3   | c  |    |
> +-----+----+----+
> {code}



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