[jira] Commented: (HIVE-48) Support JDBC connections for interoperability between Hive and RDBMS

["Ashish Thusoo (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-48?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12660774#action_12660774 ] 

Ashish Thusoo commented on HIVE-48:
-----------------------------------

A few questions:
1. What is the motivation for Driver.java:87 change?
2. In JdbcSessionState.java what are execString and fileName variables used for?
3. Shouldn't HiveResultSetMetadata.java be doing something?
4. In HiveResultSet.java:436 the getDouble function is missing TODO comment? Same is true for getFloat and getInt.
5. For the non implemented functions should we through a non implemented run time exception instead of just returning 0.




> Support JDBC connections for interoperability between Hive and RDBMS
> --------------------------------------------------------------------
>
>                 Key: HIVE-48
>                 URL: https://issues.apache.org/jira/browse/HIVE-48
>             Project: Hadoop Hive
>          Issue Type: Bug
>          Components: Clients
>            Reporter: YoungWoo Kim
>            Assignee: Michi Mutsuzaki
>            Priority: Minor
>         Attachments: hadoop-4101.1.patch, hadoop-4101.2.patch, hadoop-4101.3.patch, hadoop-4101.4.patch, hive-48.5.patch, hive-48.6.patch
>
>
> In many DW and BI systems, the data are stored in RDBMS for now such as oracle, mysql, postgresql ... for reporting, charting and etc.
> It would be useful to be able to import data from RDBMS and export data to RDBMS using JDBC connections.
> If Hive support JDBC connections, It wll be much easier to use 3rd party DW/BI tools.

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