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From "Mark Grover (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-3245) UTF encoded data not displayed correctly by Hive driver
Date Thu, 30 Aug 2012 21:12:07 GMT

    [ https://issues.apache.org/jira/browse/HIVE-3245?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13445297#comment-13445297
] 

Mark Grover commented on HIVE-3245:
-----------------------------------

I got into some trouble with the JDBC driver on Hive 0.7.1 as well. I did some poking around
too but couldn't spend much time. While doing so, I got to org.apache.hadoop.hive.jdbc.HiveQueryResultSet
class. Inside next(), the code has:

{code:title=HiveQueryResultSet.java|borderStyle=solid}
Object data = serde.deserialize(new BytesWritable(rowStr.getBytes()));
{code}

Now, getBytes() comes in two variants, one that takes no parameters and uses the default encoding
(like in the above row) or one that explicitly takes the encoding as parameter. I have a hunch
that this could be a problem and that the encoding should be sent as a parameter. However,
I haven't gotten the chance to verify/refute my hunch.
                
> UTF encoded data not displayed correctly by Hive driver
> -------------------------------------------------------
>
>                 Key: HIVE-3245
>                 URL: https://issues.apache.org/jira/browse/HIVE-3245
>             Project: Hive
>          Issue Type: Bug
>          Components: JDBC
>    Affects Versions: 0.8.0
>            Reporter: N Campbell
>         Attachments: ASF.LICENSE.NOT.GRANTED--screenshot-1.jpg, CERT.TLJA.txt
>
>
> various foreign language data (i.e. japanese, thai etc) is loaded into string columns
via tab delimited text files. A simple projection of the columns in the table is not displaying
the correct data. Exporting the data from Hive and looking at the files implies the data is
loaded properly. it appears to be an encoding issue at the driver but unaware of any required
URL connection properties re encoding that Hive JDBC requires.
> create table if not exists CERT.TLJA_JP_E ( RNUM int , C1 string, ORD int)
> row format delimited
> fields terminated by '\t'
> stored as textfile;
> create table if not exists CERT.TLJA_JP ( RNUM int , C1 string, ORD int)
> stored as sequencefile;
> load data local inpath '/home/hadoopadmin/jdbc-cert/CERT/CERT.TLJA_JP.txt'
> overwrite into table CERT.TLJA_JP_E;
> insert overwrite table CERT.TLJA_JP  select * from CERT.TLJA_JP_E;

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