Loading Oracle into Elastic with Logstash

I'm trying to load Oracle data into Elastic with Logstash.
The query returns a number of rows, but it only loaded one record into Elastic.
Is there anything wrong with my config file?

input {
jdbc {
jdbc_driver_library => "C:\jdbc\lib\ojdbc8.jar"
jdbc_driver_class => "Java::oracle.jdbc.driver.OracleDriver"
jdbc_connection_string => "jdbc:oracle:thin:@hostname:port:SID"
jdbc_user => "my_user"
jdbc_password => "my_password"
statement => "SELECT * FROM MY_TABLE"
}
}
output {
elasticsearch {
index => "my_index"
document_id => "%{table_id}"
hosts => "hostname:9200"
}
}

Try putting the tracking column too..

input {
  jdbc {
    statement => "SELECT * FROM MY_TABLE"
    use_column_value => true
    tracking_column_type => "numeric"
    tracking_column => "some_primary_key_or_sequence"
    last_run_metadata_path => "/elastic/tmp/testing/confs/test-jdbc-int-sql_last_value.yml"
    # ... other configuration bits
  }
}

Still only one record was loaded.
But thanks for your reply.

If every document has the same [table_id] field this will keep overwriting the document and you will only have one document in elasticsearch.

You get the point!
Thanks. It works well now.