我已使用以下代码连接到配置单元数据库。第一部分描述表，第二部分执行select查询。select查询运行良好，但不获取任何行。

import java.sql.SQLException;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.Statement;
import java.sql.DriverManager;

public class HiveJdbcClient {
    private static String driverName = "org.apache.hive.jdbc.HiveDriver";

    public static void main(String[] args) throws SQLException {
        try {
            Class.forName(driverName);
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
            System.exit(1);
        }

        Connection con = DriverManager.getConnection("jdbc:hive2://hostname:10000", "mapr", "mapr");
        Statement stmt = con.createStatement();
        String tableName1 = "default.newEmployee";
        // describe table
        String sql = null;

        sql = "describe " + tableName1;
        System.out.println("Running: " + sql);
        ResultSet res = stmt.executeQuery(sql);
        while (res.next()) {
            System.out.println(res.getString(1) + "\t" + res.getString(2));
        }

        // select * query
        sql = "select name from " + tableName1;
        System.out.println("Running: " + sql);
        res = stmt.executeQuery(sql);
        System.out.println("Complete");
        System.out.println("reslut "+res.getBoolean(0));
    }
}

当我登录到hive并进行选择时，我得到了超过一百万行。任何人请建议，如果我在这里做错了什么。