connection.setAutoCommit（false）抛出它在AutoCommit模式下的错误

Question

下面给出了我的连接代码，这与他们的示例中给出的基本相同。这段代码工作得比较早，但我最近将mysql c ++连接器库更新到了1.1.7，这个异常开始出现了

driver = get_driver_instance();
try {
    conn = driver->connect(dbHost, dbUser, dbPass);
} catch ( ... ) {
    throw std::invalid_argument("Failed to connect to database! (Check credentials)");
}

//prints out "Is autocommit - 1"
std::cout<<"Is autocommit - "<<conn->getAutoCommit()<<std::endl; 

conn->setAutoCommit(false); // <- this throws the exception
if ( conn->getAutoCommit() ) throw "Failed to disable auto commit mode!";

conn->setSchema(dbName);

例外类型：N3sql24InvalidArgumentExceptionE
exception.what（）：The connection is in autoCommit mode