コード例 #1
0
        public override AlgebraNode VisitAggregateAlgebraNode(AggregateAlgebraNode node)
        {
            StreamAggregateIterator streamAggregateIterator = new StreamAggregateIterator();

            streamAggregateIterator.RowBuffer   = new object[node.OutputList.Length];
            streamAggregateIterator.Input       = ConvertAlgebraNode(node.Input);
            streamAggregateIterator.InputOutput = GetIteratorOutput(0, node.Input.OutputList, node.OutputList);

            BoundRowBufferEntrySet boundRowBufferEntrySet = new BoundRowBufferEntrySet(streamAggregateIterator.Input.RowBuffer, node.Input.OutputList);

            if (node.Groups == null)
            {
                streamAggregateIterator.GroupByEntries = new IteratorInput[0];
                streamAggregateIterator.DefinedValues  = GetDefinedValues(node.OutputList, node.DefinedValues, boundRowBufferEntrySet);
            }
            else
            {
                streamAggregateIterator.GroupByEntries = GetIteratorInput(node.Input.OutputList, node.Groups);
                streamAggregateIterator.DefinedValues  = GetDefinedValues(node.OutputList, node.DefinedValues, boundRowBufferEntrySet);
            }

            SetLastIterator(node, streamAggregateIterator);

            return(node);
        }
コード例 #2
0
ファイル: IteratorCreator.cs プロジェクト: chenzuo/nquery
		public override AlgebraNode VisitAggregateAlgebraNode(AggregateAlgebraNode node)
		{
			StreamAggregateIterator streamAggregateIterator = new StreamAggregateIterator();
			streamAggregateIterator.RowBuffer = new object[node.OutputList.Length];
			streamAggregateIterator.Input = ConvertAlgebraNode(node.Input);
			streamAggregateIterator.InputOutput = GetIteratorOutput(0, node.Input.OutputList, node.OutputList);

			BoundRowBufferEntrySet boundRowBufferEntrySet = new BoundRowBufferEntrySet(streamAggregateIterator.Input.RowBuffer, node.Input.OutputList);

			if (node.Groups == null)
			{
				streamAggregateIterator.GroupByEntries = new IteratorInput[0];
				streamAggregateIterator.DefinedValues = GetDefinedValues(node.OutputList, node.DefinedValues, boundRowBufferEntrySet);
			}
			else
			{
				streamAggregateIterator.GroupByEntries = GetIteratorInput(node.Input.OutputList, node.Groups);
				streamAggregateIterator.DefinedValues = GetDefinedValues(node.OutputList, node.DefinedValues, boundRowBufferEntrySet);
			}

			SetLastIterator(node, streamAggregateIterator);

			return node;
		}