Bug 195970 Two issues when evaluate a query inlcuding a subquery[07]
Description: Currently, when evaluating a query which includes a subquery, the query will be evaluated twice. The binding of query will pass to subquery twice. If user write a java script such as new Date() and i++. The result of query will be incorrect. Another issue: when write the report document, the binding of query will be written twice and the performance is not good to evalulate it twice.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/ResultIterator.java
private org.eclipse.birt.data.engine.odi.IResultIterator odiResult;
		
		private IDInfo idInfo;
		
		
		private IRDSave rdSave;
		
		
		private boolean isBasicSaved;
		
		/**
		 * @param context
		 * @param queryDefn
		 * @param odiResult
		 * @param idInfo
		 */
		RDSaveHelper( DataEngineContext context, IBaseQueryDefinition queryDefn,
				org.eclipse.birt.data.engine.odi.IResultIterator odiResult,
				IDInfo idInfo )
		{
			this.context = context;
			this.queryDefn = queryDefn;
			this.odiResult = odiResult;
			this.idInfo = idInfo;
		}
		
		/**
		 * @param name
		 * @param value