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From "Andrew Wilson (JIRA)" <>
Subject [jira] [Commented] (HIVE-1555) JDBC Storage Handler
Date Mon, 13 Jun 2011 21:05:51 GMT


Andrew Wilson commented on HIVE-1555:

I'm struggling a little getting this code integrated into the hive trunk. I am trying to follow
the pattern established by the hbase-handler.

1) Right now the storage handler is implemented using the org.apache.hadoop.mapreduce.lib.db
package that was introduced in 0.21.0. Is there a way to build against this distro? I tried
running "$ ant -Dhadoop.version=0.21.0 package" but the hadoop-core.jar couldn't be resolved.

2) Is there a way to indicate in the build.xml only to build this jar if the minimum hadoop
version requirement is met? 

3) A lot of the unit tests for this storage handler currently depend on a local MySql instance
that the developers on my team all have available. I am unsure how to replicate this kind
of testing resource in the hive trunk.

> JDBC Storage Handler
> --------------------
>                 Key: HIVE-1555
>                 URL:
>             Project: Hive
>          Issue Type: New Feature
>          Components: JDBC
>            Reporter: Bob Robertson
>            Assignee: Andrew Wilson
>         Attachments: JDBCStorageHandler Design Doc.pdf
>   Original Estimate: 24h
>  Remaining Estimate: 24h
> With the Cassandra and HBase Storage Handlers I thought it would make sense to include
a generic JDBC RDBMS Storage Handler so that you could import a standard DB table into Hive.
Many people must want to perform HiveQL joins, etc against tables in other systems etc.

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