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From "Jacques Nadeau (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-3180) Apache Drill JDBC storage plugin to query rdbms systems such as MySQL and Netezza from Apache Drill
Date Tue, 01 Sep 2015 02:53:45 GMT

    [ https://issues.apache.org/jira/browse/DRILL-3180?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14724640#comment-14724640
] 

Jacques Nadeau commented on DRILL-3180:
---------------------------------------

Moving to 1.3.  The plugin has an issue with pushing down certain types of expressions.  People
are welcome to use the current patch as it is very functional.  However, we should hold off
merging until the plugin correctly identifies expressions trees that can be pushed down into
JDBC versus that cannot.  An example failing query is 

{code}
SELECT CONVERT_FROM(a,'JSON') FROM jdbctable;
{code}

> Apache Drill JDBC storage plugin to query rdbms systems such as MySQL and Netezza from
Apache Drill
> ---------------------------------------------------------------------------------------------------
>
>                 Key: DRILL-3180
>                 URL: https://issues.apache.org/jira/browse/DRILL-3180
>             Project: Apache Drill
>          Issue Type: New Feature
>          Components: Storage - Other
>    Affects Versions: 1.0.0
>            Reporter: Magnus Pierre
>            Assignee: Jacques Nadeau
>              Labels: Drill, JDBC, plugin
>             Fix For: 1.3.0
>
>         Attachments: patch.diff, pom.xml, storage-mpjdbc.zip
>
>   Original Estimate: 1m
>  Remaining Estimate: 1m
>
> I have developed the base code for a JDBC storage-plugin for Apache Drill. The code is
primitive but consitutes a good starting point for further coding. Today it provides primitive
support for SELECT against RDBMS with JDBC. 
> The goal is to provide complete SELECT support against RDBMS with push down capabilities.
> Currently the code is using standard JDBC classes.



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