private bool CanGenerateColumnar() { var typeOfTOuterKey = typeof(TOuterKey); var typeOfTInnerKey = typeof(TInnerKey); var typeOfTResult = typeof(TResult); if (!typeOfTResult.CanRepresentAsColumnar()) { return(false); } if (typeOfTOuterKey.GetPartitionType() != null) { return(false); } if (typeOfTInnerKey.GetPartitionType() != null) { return(false); } // For now, restrict the inner key to be anything other than an anonymous type since those can't be ungrouped without using reflection. if (typeOfTInnerKey.IsAnonymousType()) { return(false); } var lookupKey = CacheKey.Create(ResultSelector.ExpressionToCSharp()); var generatedPipeType = cachedPipes.GetOrAdd(lookupKey, key => UngroupTemplate.Generate <TOuterKey, TInnerKey, TInnerResult, TResult>(ResultSelector)); errorMessages = generatedPipeType.Item2; return(generatedPipeType.Item1 != null); }
private IStreamObserver <CompoundGroupKey <TOuterKey, TInnerKey>, TInnerResult> GetPipe(IStreamObserver <TOuterKey, TResult> observer) { var lookupKey = CacheKey.Create(ResultSelector.ExpressionToCSharp()); var generatedPipeType = cachedPipes.GetOrAdd(lookupKey, key => UngroupTemplate.Generate <TOuterKey, TInnerKey, TInnerResult, TResult>(ResultSelector)); Func <PlanNode, IQueryObject, PlanNode> planNode = ((PlanNode p, IQueryObject o) => new UngroupPlanNode( p, o, typeof(CompoundGroupKey <TOuterKey, TInnerKey>), typeof(TOuterKey), typeof(TInnerResult), typeof(TResult), ResultSelector, true, generatedPipeType.Item2)); var instance = Activator.CreateInstance(generatedPipeType.Item1, this, observer, planNode); var returnValue = (IStreamObserver <CompoundGroupKey <TOuterKey, TInnerKey>, TInnerResult>)instance; return(returnValue); }