Examples of POUnion

org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POUnion
The union operator that combines the two inputs into a single stream. Note that this doesn't eliminate duplicate tuples. The Operator will also be added to every map plan which processes more than one input. This just pulls out data from the piepline using the proposed single threaded shared execution model. By shared execution I mean, one input to the Union operator is called once and the execution moves to the next non-drained input till all the inputs are drained.

Examples of org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POUnion

    }


    @Override
    public void visit(LOUnion loUnion) throws FrontendException {
        String scope = DEFAULT_SCOPE;
        POUnion physOp = new POUnion(new OperatorKey(scope,nodeGen.getNextNodeId(scope)), loUnion.getRequestedParallelisam());
        physOp.setAlias(loUnion.getAlias());
        currentPlan.add(physOp);
        physOp.setResultType(DataType.BAG);
        logToPhyMap.put(loUnion, physOp);
        List<Operator> ops = loUnion.getPlan().getPredecessors(loUnion);


        for (Operator l : ops) {
            PhysicalOperator from = logToPhyMap.get(l);

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Examples of org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POUnion

            mapPlan.addAsLeaf(getUnion());
        }
    }
    
    private POUnion getUnion(){
        return new POUnion(new OperatorKey(scope,nig.getNextNodeId(scope)));
    }

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Examples of org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POUnion

            mapPlan.addAsLeaf(getUnion());
        }
    }
    
    private POUnion getUnion(){
        return new POUnion(new OperatorKey(scope,nig.getNextNodeId(scope)));
    }

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Examples of org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POUnion

    }
    
    @Override
    public void visitLOUnion(LOUnion loUnion) throws IOException {
        String scope = DEFAULT_SCOPE;
        POUnion physOp = new POUnion(new OperatorKey(scope,nodeGen.getNextNodeId(scope)), loUnion.getRequestedParallelisam());
        physOp.setAlias(loUnion.getAlias());
        currentPlan.add(physOp);
        physOp.setResultType(DataType.BAG);
        logToPhyMap.put(loUnion, physOp);
        List<Operator> ops = plan.getPredecessors(loUnion);


        for (Operator l : ops) {
            PhysicalOperator from = logToPhyMap.get(l);

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Examples of org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POUnion

    }


    @Override
    public void visit(LOUnion loUnion) throws FrontendException {
        String scope = DEFAULT_SCOPE;
        POUnion physOp = new POUnion(new OperatorKey(scope,nodeGen.getNextNodeId(scope)), loUnion.getRequestedParallelisam());
        physOp.setAlias(loUnion.getAlias());
        currentPlan.add(physOp);
        physOp.setResultType(DataType.BAG);
        logToPhyMap.put(loUnion, physOp);
        List<Operator> ops = loUnion.getPlan().getPredecessors(loUnion);


        for (Operator l : ops) {
            PhysicalOperator from = logToPhyMap.get(l);

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Examples of org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POUnion

            mapPlan.addAsLeaf(getUnion());
        }
    }
    
    private POUnion getUnion(){
        return new POUnion(new OperatorKey(scope,nig.getNextNodeId(scope)));
    }

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Examples of org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POUnion

            mapPlan.addAsLeaf(getUnion());
        }
    }
    
    private POUnion getUnion(){
        return new POUnion(new OperatorKey(scope,nig.getNextNodeId(scope)));
    }

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Examples of org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POUnion

            mapPlan.addAsLeaf(getUnion());
        }
    }
    
    private POUnion getUnion(){
        return new POUnion(new OperatorKey(scope,nig.getNextNodeId(scope)));
    }

View Full Code Here

Examples of org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POUnion

    }


    @Override
    public void visit(LOUnion loUnion) throws FrontendException {
        String scope = DEFAULT_SCOPE;
        POUnion physOp = new POUnion(new OperatorKey(scope,nodeGen.getNextNodeId(scope)), loUnion.getRequestedParallelism());
        physOp.addOriginalLocation(loUnion.getAlias(), loUnion.getLocation());
        currentPlan.add(physOp);
        physOp.setResultType(DataType.BAG);
        logToPhyMap.put(loUnion, physOp);
        List<Operator> ops = loUnion.getPlan().getPredecessors(loUnion);


        for (Operator l : ops) {
            PhysicalOperator from = logToPhyMap.get(l);

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Examples of org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POUnion

            mapPlan.addAsLeaf(getUnion());
        }
    }
    
    private POUnion getUnion(){
        return new POUnion(new OperatorKey(scope,nig.getNextNodeId(scope)));
    }

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