• I have searched the issues of this repository and believe that this is not a duplicate.

Ⅰ. Issue Description

针对于达梦的批量插入，目前分布式AT模式不支持分布式事务

Ⅱ. Describe what happened

Ⅲ. Describe what you expected to happen

Ⅵ. Environment:

• JDK version(e.g. java -version ):1.8
• Seata client/server version: 2.0
• Database version:dameng(达梦数据库) 7
• OS(e.g. uname -a ): Centos
• Others: