Package com.facebook.presto.operator

Examples of com.facebook.presto.operator.OperatorFactory

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            // serialize writes by forcing data through a single writer
            PhysicalOperation source = createInMemoryExchange(node, context);

            // create the table writer
            RecordSink recordSink = recordSinkManager.getRecordSink(node.getTarget());
            OperatorFactory operatorFactory = new TableWriterOperatorFactory(context.getNextOperatorId(), recordSink);

            Map<Symbol, Input> layout = ImmutableMap.<Symbol, Input>builder()
                    .put(node.getOutputSymbols().get(0), new Input(0))
                    .put(node.getOutputSymbols().get(1), new Input(1))
                    .build();
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            for (int i = 0; i < layout.size(); i++) {
                outputMappings.put(layout.get(i), new Input(i));
            }

            // add exchange source as first operator in the current context
            OperatorFactory factory = new InMemoryExchangeSourceOperatorFactory(context.getNextOperatorId(), exchange);
            return new PhysicalOperation(factory, outputMappings.build());
        }
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        @Override
        public PhysicalOperation visitTableCommit(TableCommitNode node, LocalExecutionPlanContext context)
        {
            PhysicalOperation source = node.getSource().accept(this, context);

            OperatorFactory operatorFactory = new TableCommitOperatorFactory(context.getNextOperatorId(), createTableCommitter(node, metadata));
            Map<Symbol, Input> layout = ImmutableMap.of(node.getOutputSymbols().get(0), new Input(0));

            return new PhysicalOperation(operatorFactory, layout, source);
        }
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        @Override
        public PhysicalOperation visitExchange(ExchangeNode node, LocalExecutionPlanContext context)
        {
            List<TupleInfo> tupleInfos = getSourceOperatorTupleInfos(node, context.getTypes());

            OperatorFactory operatorFactory = new ExchangeOperatorFactory(context.getNextOperatorId(), node.getId(), exchangeClientSupplier, tupleInfos);

            ImmutableMap.Builder<Symbol, Input> outputMappings = ImmutableMap.builder();
            int channel = 0;
            for (Symbol symbol : node.getOutputSymbols()) {
                outputMappings.put(symbol, new Input(channel));
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            }

            // otherwise, introduce a projection to match the expected output
            IdentityProjectionInfo mappings = computeIdentityMapping(resultSymbols, source.getLayout(), context.getTypes());

            OperatorFactory operatorFactory = new FilterAndProjectOperatorFactory(context.getNextOperatorId(), FilterFunctions.TRUE_FUNCTION, mappings.getProjections());
            return new PhysicalOperation(operatorFactory, mappings.getOutputLayout(), source);
        }
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            for (Symbol symbol : windowFunctionOutputSymbols) {
                outputMappings.put(symbol, new Input(channel));
                channel++;
            }

            OperatorFactory operatorFactory = new WindowOperatorFactory(
                    context.getNextOperatorId(),
                    source.getTupleInfos(),
                    outputChannels,
                    windowFunctions.build(),
                    partitionChannels,
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            IdentityProjectionInfo mappings = computeIdentityMapping(node.getOutputSymbols(), source.getLayout(), context.getTypes());

            Optional<Integer> sampleWeightChannel = node.getSampleWeight().transform(source.channelGetter());

            OperatorFactory operator = new TopNOperatorFactory(
                    context.getNextOperatorId(),
                    (int) node.getCount(),
                    mappings.getProjections(),
                    ordering,
                    sampleWeightChannel,
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            int[] outputChannels = new int[source.getTupleInfos().size()];
            for (int i = 0; i < outputChannels.length; i++) {
                outputChannels[i] = i;
            }

            OperatorFactory operator = new OrderByOperatorFactory(
                    context.getNextOperatorId(),
                    source.getTupleInfos(),
                    outputChannels,
                    10_000,
                    orderByChannels,
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        {
            PhysicalOperation source = node.getSource().accept(this, context);

            Optional<Integer> sampleWeightChannel = node.getSampleWeight().transform(source.channelGetter());

            OperatorFactory operatorFactory = new LimitOperatorFactory(context.getNextOperatorId(), source.getTupleInfos(), node.getCount(), sampleWeightChannel);
            return new PhysicalOperation(operatorFactory, source.getLayout(), source);
        }
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        @Override
        public PhysicalOperation visitDistinctLimit(DistinctLimitNode node, LocalExecutionPlanContext context)
        {
            PhysicalOperation source = node.getSource().accept(this, context);
            OperatorFactory operatorFactory = new DistinctLimitOperatorFactory(
                    context.getNextOperatorId(),
                    source.getTupleInfos(),
                    node.getLimit());
            return new PhysicalOperation(operatorFactory, source.getLayout(), source);
        }
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Related Classes of com.facebook.presto.operator.OperatorFactory

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  • com.facebook.presto.benchmark.HashAggregationBenchmark
  • com.facebook.presto.benchmark.HashBuildAndJoinBenchmark
  • com.facebook.presto.benchmark.HashBuildBenchmark
  • com.facebook.presto.benchmark.HashJoinBenchmark
  • com.facebook.presto.benchmark.OrderByBenchmark
  • com.facebook.presto.benchmark.PredicateFilterBenchmark
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