Bug 152443 Support boolean type in data set
Support boolean type in data set. It'll cause some data transform issue with absence of boolean type.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/odaconsumer/PreparedStatement.java
m_currentResultClass = null;
		
		sm_logger.exiting( sm_className, methodName, rs );
		
		return rs;
	}
	
	/**
	 * Returns the specified named <code>ResultSet</code>.
	 * @param resultSetName	the name of the result set.
	 * @return	the named <code>ResultSet</code>.
	 * @throws DataException	if data source error occurs.
	 */
	public ResultSet getResultSet( String resultSetName ) throws DataException
	{
		String methodName = "getResultSet";
		sm_logger.entering( sm_className, methodName, resultSetName );
		
		checkNamedResultsSupport();
		
		IResultSet resultset = null;
		
		try
		{
			resultset = 
			    getAdvancedStatement().getResultSet( resultSetName );
		}
		catch( OdaException ex )