public override void RetrieveResults(out ITableResults resTable, out GroupByResults groupByResults)
{
resTable = null;
if (this.groupJobs.Length > 1)
{
groupByResults = new ConDictGroupDictKeyFullBucket(this.globalGroups, new TableResults());
}
else
{
groupByResults = new GroupByResultsList(this.groupJobs[0].groups, this.groupJobs[0].aggResults, this.groupJobs[0].resTable);
}
}
public override void Compute(out ITableResults resTable, out GroupByResults groupByResults)
{
var aggs = this.aggregates.ToArray();
if (next != null)
{
this.next.Compute(out resTable, out groupByResults);
this.next = null;
if (resTable == null)
{
throw new ArgumentNullException($"{this.GetType()}, table results are set to null.");
}
// If there are no results, return empty storage.
if (resTable.NumberOfMatchedElements == 0)
{
groupByResults = new GroupByResultsList(new Dictionary <GroupDictKey, int>(), null, resTable);
}
else
{
Grouper grouper;
if (this.helper.IsSetSingleGroupGroupBy)
{
grouper = new SingleGroupGroupBy(aggs, null, this.helper);
}
else
{
// Use reference single thread solutions because the result table cannot be split equaly among threads.
// This also means that the result table is quite small.
if (resTable.NumberOfMatchedElements / helper.ThreadCount == 0)
{
grouper = Grouper.Factory(GrouperAlias.RefL, aggs, this.hashes, this.helper);
}
else
{
grouper = Grouper.Factory(aggs, this.hashes, this.helper);
}
}
groupByResults = grouper.Group(resTable);
}
}
else
{
throw new NullReferenceException($"{this.GetType()}, next is set to null.");
}
}