private OperationLogMapper getMapper() {
        return Dbutils.getMapper(OperationLogMapper.class);
    }
@author moji
@version UserExecutedDdlCoreServiceImpl.java, v 0.1 September 25, 2022 14:07 moji Exp $
@date 2022/09/25
chat2db-server/chat2db-server-domain/chat2db-server-domain-core/src/main/java/ai/chat2db/server/domain/core/impl/OperationLogServiceImpl.java