Package com.facebook.presto.sql.planner.plan

Examples of com.facebook.presto.sql.planner.plan.ExchangeNode


            if (source.isDistributed() || filteringSource.isDistributed()) {
                filteringSource.setRoot(new SinkNode(idAllocator.getNextId(), filteringSource.getRoot(), filteringSource.getRoot().getOutputSymbols()));
                source.setRoot(new SemiJoinNode(node.getId(),
                        source.getRoot(),
                        new ExchangeNode(idAllocator.getNextId(), filteringSource.getId(), filteringSource.getRoot().getOutputSymbols()),
                        node.getSourceJoinSymbol(),
                        node.getFilteringSourceJoinSymbol(),
                        node.getSemiJoinOutput()));
                source.addChild(filteringSource.build());
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                    SubPlanBuilder current = subPlan.accept(this, context);
                    current.setRoot(new SinkNode(idAllocator.getNextId(), current.getRoot(), node.sourceOutputLayout(i)));
                    fragmentIdBuilder.add(current.getId());
                    sourceBuilder.add(current.build());
                }
                ExchangeNode exchangeNode = new ExchangeNode(idAllocator.getNextId(), fragmentIdBuilder.build(), node.getOutputSymbols());
                return createSingleNodePlan(exchangeNode)
                        .setChildren(sourceBuilder.build());
            }
        }
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            else {
                PlanNode sink = new SinkNode(idAllocator.getNextId(), current.getRoot(), current.getRoot().getOutputSymbols());
                current.setRoot(sink)
                        .setHashOutputPartitioning(node.getDistinctSymbols());

                PlanNode exchange = new ExchangeNode(idAllocator.getNextId(), current.getId(), sink.getOutputSymbols());
                MarkDistinctNode markNode = new MarkDistinctNode(idAllocator.getNextId(), exchange, node.getMarkerSymbol(), node.getDistinctSymbols(), node.getSampleWeightSymbol());
                return createFixedDistributionPlan(markNode)
                        .addChild(current.build());
            }
        }
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            // create partial aggregation plan
            AggregationNode partialAggregation = new AggregationNode(idAllocator.getNextId(), plan.getRoot(), groupBy, intermediateCalls, intermediateFunctions, intermediateMask, PARTIAL, sampleWeight, confidence);
            plan.setRoot(new SinkNode(idAllocator.getNextId(), partialAggregation, partialAggregation.getOutputSymbols()));

            // create final aggregation plan
            ExchangeNode source = new ExchangeNode(idAllocator.getNextId(), plan.getId(), plan.getRoot().getOutputSymbols());
            AggregationNode finalAggregation = new AggregationNode(idAllocator.getNextId(), source, groupBy, finalCalls, functions, ImmutableMap.<Symbol, Symbol>of(), FINAL, Optional.<Symbol>absent(), confidence);

            if (groupBy.isEmpty()) {
                plan = createSingleNodePlan(finalAggregation)
                        .addChild(plan.build());
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            if (current.isDistributed()) {
                List<Symbol> partitionedBy = node.getPartitionBy();
                current.setRoot(new SinkNode(idAllocator.getNextId(), current.getRoot(), current.getRoot().getOutputSymbols()));

                ExchangeNode source = new ExchangeNode(idAllocator.getNextId(), current.getId(), current.getRoot().getOutputSymbols());
                if (partitionedBy.isEmpty()) {
                    // create a new non-partitioned fragment
                    current = createSingleNodePlan(source)
                            .addChild(current.build());
                }
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            if (current.isDistributed()) {
                current.setRoot(new SinkNode(idAllocator.getNextId(), current.getRoot(), current.getRoot().getOutputSymbols()));

                // create merge plan fragment
                PlanNode source = new ExchangeNode(idAllocator.getNextId(), current.getId(), current.getRoot().getOutputSymbols());
                TopNNode merge = new TopNNode(idAllocator.getNextId(), source, node.getCount(), node.getOrderBy(), node.getOrderings(), true, node.getSampleWeight());
                current = createSingleNodePlan(merge)
                        .addChild(current.build());
            }
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            if (current.isDistributed()) {
                current.setRoot(new SinkNode(idAllocator.getNextId(), current.getRoot(), current.getRoot().getOutputSymbols()));

                // create a new non-partitioned fragment
                current = createSingleNodePlan(new ExchangeNode(idAllocator.getNextId(), current.getId(), current.getRoot().getOutputSymbols()))
                        .addChild(current.build());
            }

            current.setRoot(new SortNode(node.getId(), current.getRoot(), node.getOrderBy(), node.getOrderings()));
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            if (current.isDistributed()) {
                current.setRoot(new SinkNode(idAllocator.getNextId(), current.getRoot(), current.getRoot().getOutputSymbols()));

                // create a new non-partitioned fragment
                current = createSingleNodePlan(new ExchangeNode(idAllocator.getNextId(), current.getId(), current.getRoot().getOutputSymbols()))
                        .addChild(current.build());
            }

            current.setRoot(new OutputNode(node.getId(), current.getRoot(), node.getColumnNames(), node.getOutputSymbols()));
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            if (current.isDistributed()) {
                current.setRoot(new SinkNode(idAllocator.getNextId(), current.getRoot(), current.getRoot().getOutputSymbols()));

                // create merge plan fragment
                PlanNode source = new ExchangeNode(idAllocator.getNextId(), current.getId(), current.getRoot().getOutputSymbols());
                LimitNode merge = new LimitNode(idAllocator.getNextId(), source, node.getCount(), node.getSampleWeight());
                current = createSingleNodePlan(merge)
                        .addChild(current.build());
            }
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            current.setRoot(new DistinctLimitNode(node.getId(), current.getRoot(), node.getLimit()));

            if (current.isDistributed()) {
                current.setRoot(new SinkNode(idAllocator.getNextId(), current.getRoot(), current.getRoot().getOutputSymbols()));

                PlanNode source = new ExchangeNode(idAllocator.getNextId(), current.getId(), current.getRoot().getOutputSymbols());
                DistinctLimitNode merge = new DistinctLimitNode(idAllocator.getNextId(), source, node.getLimit());
                current = createSingleNodePlan(merge).addChild(current.build());
            }
            return current;
        }
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