RestfulDriver column name ignore case

[lrzl]

因数据库列名不区分大小写，使用大写的列名寻找数据会导致找不到列
问题复现步骤：

1. 创建表

create table column_name_test (ts timestamp,col NCHAR (64)) tags (t NCHAR (64))

2. 写入数据

insert into data_1 using column_name_test tags ('test tag') values ('2025-01-13 00:00:00','test data');
select * from column_name_test;

           ts            |              col               |               t                |
============================================================================================
 2025-01-13 00:00:00.000 | test data                      | test tag                       |
Query OK, 1 row(s) in set (0.001425s)

3.配置RestfulDriver

... 省略
<property name="jdbcUrl" value="jdbc:TAOS-RS://tdengine:6041/unittest"/>
<property name="driverClassName" value="com.taosdata.jdbc.rs.RestfulDriver"/>
... 省略

3.执行

...
try (Connection connection = hikariDataSource.getConnection()){
              ResultSet resultSet = connection.prepareStatement("select * from column_name_test").executeQuery();
              if (resultSet.next()){
                  System.out.println("get col value:" + resultSet.getObject("col"));
                  System.out.println("get COL value:" +resultSet.getObject("COL"));
              }
 }
...

结果

get col value:test data
java.lang.RuntimeException: java.sql.SQLException: cannot find Column in resultSet

	at ...省略
Caused by: java.sql.SQLException: cannot find Column in resultSet
	at com.taosdata.jdbc.rs.RestfulResultSet.findColumn(RestfulResultSet.java:488)
	at com.taosdata.jdbc.AbstractResultSet.getObject(AbstractResultSet.java:236)
	at com.zaxxer.hikari.pool.HikariProxyResultSet.getObject(HikariProxyResultSet.java)
	at ..省略
	... 28 more