Github user felixcheung commented on the pull request: https://github.com/apache/incubator-zeppelin/pull/361#issuecomment-152012132 If I recall there were 3 areas of discussions around JDBC: 1. JDBC url, authentication etc would need to be extensible since they vary greatly between platforms 2. Autocomplete hint etc would also need to be extensible since reserve words etc are different 3. More importantly - multi-instances - if we are to have one JDBC interpreter we need to have a way of supporting multiple instances of the interpreter? Otherwise we are limiting to work with one JDBC host at a time and can't talk to Hive, PostgresQL, Phoenix etc at the same time.
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