Bug 131011 Support running query based on report document data
Data Engine should support running a query based on data set and expression data stored in a report document. This bugzilla entry serves as a repository for design docs and notes related to this feature.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/ResultIterator.java
.saveResultIterator( (CachedResultSet) this.odiResult,
								this.groupLevel,
								this.subQueryInfo );
			}
			
			this.getRdSave( )
					.saveExprValue( odiResult.getCurrentResultIndex( ),
							name,
							value );
		}
		/**
		 * @throws DataException
		 */
		void doSaveFinish( ) throws DataException
		{
			if ( needsSaveToDoc( ) == false )
				return;
			if ( isBasicSaved == false )
			{
				isBasicSaved = true;
				this.getRdSave( )
						.saveResultIterator( (CachedResultSet) this.odiResult,
								this.groupLevel,
								this.subQueryInfo );
			}
			this.getRdSave( ).saveFinish( odiResult.getCurrentResultIndex( ) );
		}
		
		/**
		 * @param resultIt