Bug 137130 The cascading parameter does not work when a column name includes double quotation marks
Description: The cascading parameter does not work when a column name includes double quotation marks Steps to reproduce: 1. download the report design file 2. change the flat file path to the related position 3. save and preview. Actual result: The cascading parameter can not retrieve the data.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/QueryResults.java
return this.queryScope;
	}
	
	/*
	 * @see org.eclipse.birt.data.engine.impl.IQueryService#getExecutorHelper()
	 */
	public IExecutorHelper getExecutorHelper( ) throws DataException
	{
		return ( (ResultIterator) this.getResultIterator( ) ).odiResult.getExecutorHelper( );
	}
	
	/*
	 * @see org.eclipse.birt.data.engine.impl.IQueryService#getDataSetRuntime(int)
	 */
	public DataSetRuntime[] getDataSetRuntime( int count )
	{
		return this.queryService.getDataSetRuntimes( count );
	}
	/**
	 * 
	 */
	private static class ResultService implements IServiceForResultSet
	{
		
		private DataEngineContext context;
		private QueryResults queryResults;
		
		/**
		 * @param queryResults
		 */