dbunit + postgresql

package homeWorkTest;
import static org.junit.Assert.*;
import org.junit.Test;

import java.io.FileOutputStream;

import org.dbunit.JdbcDatabaseTester;

import org.dbunit.database.DatabaseConfig;

import org.dbunit.database.IDatabaseConnection;

import org.dbunit.database.QueryDataSet;

import org.dbunit.dataset.IDataSet;

import org.dbunit.dataset.excel.XlsDataSet;

import org.dbunit.ext.postgresql.PostgresqlDataTypeFactory;

//import org.dbunit.dataset.xml.FlatXmlDataSet;




public class dbDmpSample {
	@Test

	public void test() throws Exception {

		//fail("Not yet implemented");

			JdbcDatabaseTester tester = new JdbcDatabaseTester(

					"org.postgresql.Driver",

					"jdbc:postgresql://localhost:5432/prototype", "tk", "");

			IDatabaseConnection connection = tester.getConnection();

			connection.getConfig().setProperty(DatabaseConfig.PROPERTY_DATATYPE_FACTORY, 

							new PostgresqlDataTypeFactory());

			

			

			

			QueryDataSet ds = new QueryDataSet(connection);

			FileOutputStream stream = new FileOutputStream("/Users/tk/foo_selects.xls");

			

			ds.addTable("foo", "select memo from foo where id = 2");

			XlsDataSet.write(ds, stream);

	

			//below are table  

			//String[] tableNamesToDump = new String[] { "foo" };

			//IDataSet target = connection.createDataSet(tableNamesToDump);

			//FileOutputStream stream = new FileOutputStream("/Users/tk/foo_select.xls");

			//XlsDataSet.write(target, stream);

		

	}
}
it needs some customized class
https://sourceforge.net/p/dbunit/feature-requests/188/
and add jsonb type it like
public DataType createDataType(int sqlType, String sqlTypeName) throws DataTypeException {

    

    if ("json".equals(sqlTypeName) || 

        "jsonb".equals(sqlTypeName)  ) {//jsonb type added

            return new JsonType()

    }

    

}
https://qiita.com/crazyNasubi/items/3ae54248c8dc70ab15d9