The interface of sql::ConnectionMetaData, sql::ResultSetMetaData and sql::ParameterMetaData was modified to have a protected destructor. As a result the client code has no need to destruct the metadata objects returned by the connector. MySQL Connector/C++ handles the required destruction. This enables statements such as:

connection->getMetaData->getSchema();

This avoids potential memory leaks that could occur as a result of losing the pointer returned by getMetaData().

Improved memory management. Potential memory leak situations are handled more robustly.

Changed the interface of sql::Driver and sql::Connection so they accept the options map by alias instead of by value.

Changed the return type of sql::SQLException::getSQLState() from std::string to const char * to be consistent with std::exception::what().

Implemented getResultSetType() and setResultSetType() for Statement. Uses TYPE_FORWARD_ONLY, which means unbuffered result set and TYPE_SCROLL_INSENSITIVE, which means buffered result set.

Implemented getResultSetType() for PreparedStatement. The setter is not implemented because currently PreparedStatement cannot do refetching. Storing the result means the bind buffers will be correct.

Added the option defaultStatementResultType to MySQL_Connection::setClientOption(). Also, the method now returns sql::Connection *.

Added Result::getType(). Implemented for the three result set classes.

Enabled tracing functionality when building with Microsoft Visual C++ 8 and later, which corresponds to Microsoft Visual Studio 2005 and later.

Added better support for named pipes, on Windows. Use pipe:// and add the path to the pipe. Shared memory connections are currently not supported.

A bug was fixed in MySQL_Connection::setSessionVariable(), which had been causing exceptions to be thrown.