title: Kafka connect JDBC source connector not working
body: <p>Hello Everyone,
                I am using Kafka JDBC Source connector using for postgres. Following is my connector configuration. Some how it is not bringing any data. What is wrong in this configuration?</p>
  
  <pre><code>{
      "name": "test-connection",
      "config": {
         "connector.class": "io.confluent.connect.jdbc.JdbcSourceConnector",
         "mode": "timestamp",
         "timestamp.column.name": "TEST_DT",
         "topic.prefix": "test",
         "connection.password": "xxxxxx",
         "validate.non.null": "false",
         "connection.user": "xxxxxx",
         "table.whitelist": "test.test",
         "connection.url": "jdbc:postgresql://xxxx:5432/xxxx?ssl=true&amp;stringtype=unspecified",
         "name": "test-connection"
  },
    "tasks": [],
    "type": "source"
  }
  </code></pre>
  
  <p>Do I need to create the topic or does it get generated automatically?</p>
  
  <p>I expect the data to be flowing based on the example but the data is not flowing.Following is the log I see in the kafka connect. But, no data is flowing in.</p>
  
  <p>Log</p>
  
  <p>[2019-07-07 20:52:37,465] INFO WorkerSourceTask{id=test-connection-0} Committing offsets (org.apache.kafka.connect.runtime.WorkerSourceTask)
  [2019-07-07 20:52:37,465] INFO WorkerSourceTask{id=test-connection-0} flushing 0 outstanding messages for offset commit (org.apache.kafka.connect.runtime.WorkerSourceTask)</p>