private bool CanGenerateColumnar()
{
var typeOfTOuterKey = typeof(TOuterKey);
var typeOfTSource = typeof(TSource);
var typeOfTInnerKey = typeof(TInnerKey);
if (!typeOfTSource.CanRepresentAsColumnar())
{
return(false);
}
if (typeOfTOuterKey.GetPartitionType() != null)
{
return(false);
}
if (typeOfTInnerKey.GetPartitionType() != null)
{
return(false);
}
var keyEqComparer = Properties.KeyEqualityComparer;
string inlinedHashCodeComputation;
if (keyEqComparer is CompoundGroupKeyEqualityComparer <TOuterKey, TInnerKey> comparer)
{
var y = comparer.innerComparer.GetGetHashCodeExpr();
inlinedHashCodeComputation = y.Inline("key");
}
else
{
inlinedHashCodeComputation = keyEqComparer.GetGetHashCodeExpr().Inline("key");
}
var lookupKey = CacheKey.Create(inlinedHashCodeComputation, powerOf2);
var generatedPipeType = cachedPipes.GetOrAdd(lookupKey, key => ShuffleTemplate.Generate <TOuterKey, TSource, TInnerKey>(null, inlinedHashCodeComputation, false, this.powerOf2));
errorMessages = generatedPipeType.Item2;
return(generatedPipeType.Item1 != null);
}
private IStreamObserverAndSameKeyGroupedStreamObservable <TOuterKey, TSource, TOuterKey> GetPipe(IStreamObserver <TOuterKey, TSource> observer, int totalBranchesL2, int shuffleId)
{
var keyEqComparer = Properties.KeyEqualityComparer;
string inlinedHashCodeComputation;
if (keyEqComparer is CompoundGroupKeyEqualityComparer <TOuterKey, TInnerKey> comparer)
{
var y = comparer.innerComparer.GetGetHashCodeExpr();
inlinedHashCodeComputation = y.Inline("key");
}
else
{
inlinedHashCodeComputation = keyEqComparer.GetGetHashCodeExpr().Inline("key");
}
var lookupKey = CacheKey.Create(inlinedHashCodeComputation, powerOf2);
var generatedPipeType = cachedPipes.GetOrAdd(lookupKey, key => ShuffleTemplate.Generate <TOuterKey, TSource, TInnerKey>(null, inlinedHashCodeComputation, false, this.powerOf2));
Func <PlanNode, IQueryObject, PlanNode> planNode = ((PlanNode p, IQueryObject o) => new GroupPlanNode(
p,
o,
typeof(TOuterKey),
typeof(CompoundGroupKey <TOuterKey, TInnerKey>),
typeof(TSource),
null,
this.shuffleId,
this.totalBranchesL2,
true,
true,
generatedPipeType.Item2));
var instance = Activator.CreateInstance(generatedPipeType.Item1, this, observer, totalBranchesL2, shuffleId, planNode);
var returnValue = (IStreamObserverAndSameKeyGroupedStreamObservable <TOuterKey, TSource, TOuterKey>)instance;
return(returnValue);
}