Bug 123545 DateTimeSpan not working properly in Edit Data Set
i cannot use the following script in Edit Data Set, DateTimeSpan.addDate(row["SHIPPEDDATE"], 0, 0, 10) seps to reproduce: - open the attached report design - go to Data Explorer - open Edit Data Set - Preview Results expected behavior: - the above script is executed. actual behavior: - errors were thrown.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/DataEngineImpl.java
throw e; 
		}
		if ( logger.isLoggable( Level.FINE ) )
			logger.logp( Level.FINE,
					DataEngineImpl.class.getName( ),
					"defineDataSource",
					"DataEngine.defineDataSource: "
							+ LogUtil.toString( dataSource ) );
		
		
		Object existingDefn = dataSources.get( dataSource.getName( ) );
		if ( existingDefn != null )
		{
			( (DataSourceRuntime) existingDefn ).closeOdiDataSource( );
			( (DataSourceRuntime) existingDefn ).setDesign( dataSource );
		}
		
		
		
		DataSourceRuntime newDefn = DataSourceRuntime.newInstance( dataSource,
				this );
		dataSources.put( newDefn.getName( ), newDefn );
		
		logger.exiting( DataEngineImpl.class.getName( ), "defineDataSource" );
	}
	/**
	 * Provides the definition of a data set to Data Engine. A data set must be
	 * defined using this method prior to preparing any report query that uses such data set.
	 * <br>
	 * Data sets are uniquely identified name. If specified data set has already