Github user felixcheung commented on the pull request: https://github.com/apache/incubator-zeppelin/pull/661#issuecomment-181606224 @vgmartinez sorry, i think my comment has confused you. Please change this [line](https://github.com/apache/incubator-zeppelin/pull/661/files#diff-12ee03bf05e397a25720e23c90890661R53) to `It is not necessary to add driver jar to the classpath for PostgreSQL as it is included in Zeppelin.`
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