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
String methodName = "declareCustomColumn";		
		if( sm_logger.isLoggingEnterExitLevel() )
			sm_logger.entering( sm_className, methodName, 
								new Object[] { resultSetName, columnName, columnType } );
		
		checkNamedResultsSupport();
		
		assert columnName != null;
		assert columnName.length() != 0;
		
		 
		 
		
		resetCurrentMetaData( resultSetName );
		getProjectedColumns( resultSetName ).addCustomColumn( columnName, 
		                                                      columnType );
		
		sm_logger.exiting( sm_className, methodName );
	}
	
	 
	 
	 
	 
	 
	
	private void resetCurrentMetaData()
	{
		String methodName = "resetCurrentMetaData";
		sm_logger.entering( sm_className, methodName );