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From "Jihoon Son (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (TAJO-176) Implement Tajo JDBC Driver
Date Sun, 17 Nov 2013 12:31:33 GMT

    [ https://issues.apache.org/jira/browse/TAJO-176?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13824824#comment-13824824

Jihoon Son commented on TAJO-176:

There are some points which should be discussed.
* The first is the different handling of unimplemented functions. While some unimplemented
functions return a meaningless value such as 0, false, or "", other functions throw an exception.
It will be better to use the same way to handle the unimplemented functions.
* There are *too many* wrong exception messages. For example, getMaxColumnsInGroupBy() throws
SQLFeatureNotSupportedException("getMaxColumnsInGroupBy") instead of SQLFeatureNotSupportedException("commit").
* In this patch, RpcConnectionPool is closed when TajoClient.close() is called. I'm not sure
that this is a valid action. If there are two or more TajoClients, what will happen?

> Implement Tajo JDBC Driver
> --------------------------
>                 Key: TAJO-176
>                 URL: https://issues.apache.org/jira/browse/TAJO-176
>             Project: Tajo
>          Issue Type: New Feature
>          Components: client
>            Reporter: Hyunsik Choi
>            Assignee: Keuntae Park
>             Fix For: 0.8-incubating
>         Attachments: TAJO-176.patch
> Tajo is required to be integrated with legacy BI or OLAP tools. For this, Tajo should
provide a JDBC driver.

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