Examples of LOFilter

Examples of org.apache.pig.experimental.logical.relational.LOFilter

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        // -> filter $1 == 'joe' --> filter name == 'joe' --> stor
       
        LogicalPlan plan = null;
        LOLoad load = null;
        LOForEach foreach = null;
        LOFilter filter = null;
        LOStore stor = null;
       
        plan = new LogicalPlan();
       
        LogicalSchema schema = new LogicalSchema();
        schema.addField(new LogicalSchema.LogicalFieldSchema("name", null, DataType.CHARARRAY));
        LogicalSchema bagSchema = new LogicalSchema();
        LogicalSchema bagTupleSchema = new LogicalSchema();
        bagTupleSchema.addField( new LogicalSchema.LogicalFieldSchema("name", null, DataType.CHARARRAY) );
        bagSchema.addField( new LogicalSchema.LogicalFieldSchema( "t", bagTupleSchema, DataType.TUPLE ) );
        schema.addField(new LogicalSchema.LogicalFieldSchema("cuisines", bagSchema, DataType.BAG));
       
        load = new LOLoad(null, schema, plan);
        load.setAlias("A");
        plan.add(load);
       
        foreach = new LOForEach(plan);
       
        LogicalPlan innerPlan = new LogicalPlan();
        LOInnerLoad innerLoad = new LOInnerLoad(innerPlan, foreach, 0);
        innerPlan.add(innerLoad);
       
        LOInnerLoad innerLoad2 = new LOInnerLoad(innerPlan, foreach, 1);
        innerPlan.add(innerLoad2);
       
        LogicalExpressionPlan namePrj = new LogicalExpressionPlan();       
        ProjectExpression prjName = new ProjectExpression(namePrj, DataType.CHARARRAY, 0, 0);
        namePrj.add(prjName);
       
        LogicalExpressionPlan cuisinesPrj = new LogicalExpressionPlan();
        ProjectExpression prjCuisines = new ProjectExpression(cuisinesPrj, DataType.BAG, 1, 0);
        cuisinesPrj.add(prjCuisines);
       
        List<LogicalExpressionPlan> expPlans = new ArrayList<LogicalExpressionPlan>();
        expPlans.add(namePrj);
        expPlans.add(cuisinesPrj);
       
        boolean flatten[] = new boolean[2];
        flatten[0] = false;
        flatten[1] = true;
       
        LOGenerate generate = new LOGenerate(innerPlan, expPlans, flatten);       
        innerPlan.add(generate);
        innerPlan.connect(innerLoad, generate);
        innerPlan.connect(innerLoad2, generate);
       
        foreach.setInnerPlan(innerPlan);
        foreach.setAlias("B");
        plan.add(foreach);
       
        plan.connect(load, foreach);
       
        filter = new LOFilter(plan);
        LogicalExpressionPlan filterPlan = new LogicalExpressionPlan();
        ProjectExpression namePrj2 = new ProjectExpression(filterPlan, DataType.CHARARRAY, 0, 0);
        filterPlan.add(namePrj2);
        ConstantExpression constExp = new ConstantExpression(filterPlan, DataType.CHARARRAY, "joe");
        filterPlan.add(constExp);
        EqualExpression equal = new EqualExpression(filterPlan, namePrj2, constExp);
        filterPlan.add(equal);
       
        filter.setFilterPlan(filterPlan);
        filter.setAlias("C");
        plan.add(filter);
       
        LOFilter filter2 = new LOFilter(plan);
        LogicalExpressionPlan filter2Plan = new LogicalExpressionPlan();
        ProjectExpression name2Prj2 = new ProjectExpression(filter2Plan, DataType.CHARARRAY, 0, 1);
        filter2Plan.add(name2Prj2);
        ConstantExpression const2Exp = new ConstantExpression(filter2Plan, DataType.CHARARRAY, "joe");
        filter2Plan.add(const2Exp);
        EqualExpression equal2 = new EqualExpression(filter2Plan, namePrj2, constExp);
        filter2Plan.add(equal2);
       
        filter2.setFilterPlan(filter2Plan);
        filter2.setAlias("C1");
        plan.add(filter2);
       
        plan.connect(foreach, filter2);
        plan.connect(filter2, filter);
       
View Full Code Here

Examples of org.apache.pig.experimental.logical.relational.LOFilter

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        // -> filter name == 'joe2' --> filter name == 'joe' --> stor
       
        LogicalPlan plan = null;
        LOLoad load = null;
        LOForEach foreach = null;
        LOFilter filter = null;
        LOStore stor = null;
       
        plan = new LogicalPlan();
       
        LogicalSchema schema = new LogicalSchema();
        schema.addField(new LogicalSchema.LogicalFieldSchema("name", null, DataType.CHARARRAY));
        LogicalSchema bagSchema = new LogicalSchema();
        LogicalSchema bagTupleSchema = new LogicalSchema();
        bagTupleSchema.addField( new LogicalSchema.LogicalFieldSchema("name", null, DataType.CHARARRAY) );
        bagSchema.addField( new LogicalSchema.LogicalFieldSchema( "t", bagTupleSchema, DataType.TUPLE ) );
        schema.addField(new LogicalSchema.LogicalFieldSchema("cuisines", bagSchema, DataType.BAG));
       
        load = new LOLoad(null, schema, plan);
        load.setAlias("A");
        plan.add(load);
       
        foreach = new LOForEach(plan);
       
        LogicalPlan innerPlan = new LogicalPlan();
        LOInnerLoad innerLoad = new LOInnerLoad(innerPlan, foreach, 0);
        innerPlan.add(innerLoad);
       
        LOInnerLoad innerLoad2 = new LOInnerLoad(innerPlan, foreach, 1);
        innerPlan.add(innerLoad2);
       
        LogicalExpressionPlan namePrj = new LogicalExpressionPlan();       
        ProjectExpression prjName = new ProjectExpression(namePrj, DataType.CHARARRAY, 0, 0);
        namePrj.add(prjName);
       
        LogicalExpressionPlan cuisinesPrj = new LogicalExpressionPlan();
        ProjectExpression prjCuisines = new ProjectExpression(cuisinesPrj, DataType.BAG, 1, 0);
        cuisinesPrj.add(prjCuisines);
       
        List<LogicalExpressionPlan> expPlans = new ArrayList<LogicalExpressionPlan>();
        expPlans.add(namePrj);
        expPlans.add(cuisinesPrj);
       
        boolean flatten[] = new boolean[2];
        flatten[0] = false;
        flatten[1] = true;
       
        LOGenerate generate = new LOGenerate(innerPlan, expPlans, flatten);       
        innerPlan.add(generate);
        innerPlan.connect(innerLoad, generate);
        innerPlan.connect(innerLoad2, generate);
       
        foreach.setInnerPlan(innerPlan);
        foreach.setAlias("B");
        plan.add(foreach);
       
        plan.connect(load, foreach);
       
        filter = new LOFilter(plan);
        LogicalExpressionPlan filterPlan = new LogicalExpressionPlan();
        ProjectExpression namePrj2 = new ProjectExpression(filterPlan, DataType.CHARARRAY, 0, 0);
        filterPlan.add(namePrj2);
        ConstantExpression constExp = new ConstantExpression(filterPlan, DataType.CHARARRAY, "joe");
        filterPlan.add(constExp);
        EqualExpression equal = new EqualExpression(filterPlan, namePrj2, constExp);
        filterPlan.add(equal);
       
        filter.setFilterPlan(filterPlan);
        filter.setAlias("C");
        plan.add(filter);
       
        LOFilter filter2 = new LOFilter(plan);
        LogicalExpressionPlan filter2Plan = new LogicalExpressionPlan();
        ProjectExpression name2Prj2 = new ProjectExpression(filter2Plan, DataType.CHARARRAY, 0, 0);
        filter2Plan.add(name2Prj2);
        ConstantExpression const2Exp = new ConstantExpression(filter2Plan, DataType.CHARARRAY, "joe2");
        filter2Plan.add(const2Exp);
        EqualExpression equal2 = new EqualExpression(filter2Plan, namePrj2, constExp);
        filter2Plan.add(equal2);
       
        filter2.setFilterPlan(filter2Plan);
        filter2.setAlias("C1");
        plan.add(filter2);
       
        plan.connect(foreach, filter2);
        plan.connect(filter2, filter);
       
View Full Code Here

Examples of org.apache.pig.experimental.logical.relational.LOFilter

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        // -> filter $1 == 'joe2' --> filter $1 == 'joe' --> stor
       
        LogicalPlan plan = null;
        LOLoad load = null;
        LOForEach foreach = null;
        LOFilter filter = null;
        LOStore stor = null;
       
        plan = new LogicalPlan();
       
        LogicalSchema schema = new LogicalSchema();
        schema.addField(new LogicalSchema.LogicalFieldSchema("name", null, DataType.CHARARRAY));
        LogicalSchema bagSchema = new LogicalSchema();
        LogicalSchema bagTupleSchema = new LogicalSchema();
        bagTupleSchema.addField( new LogicalSchema.LogicalFieldSchema("name", null, DataType.CHARARRAY) );
        bagSchema.addField( new LogicalSchema.LogicalFieldSchema( "t", bagTupleSchema, DataType.TUPLE ) );
        schema.addField(new LogicalSchema.LogicalFieldSchema("cuisines", bagSchema, DataType.BAG));
       
        load = new LOLoad(null, schema, plan);
        load.setAlias("A");
        plan.add(load);
       
        foreach = new LOForEach(plan);
       
        LogicalPlan innerPlan = new LogicalPlan();
        LOInnerLoad innerLoad = new LOInnerLoad(innerPlan, foreach, 0);
        innerPlan.add(innerLoad);
       
        LOInnerLoad innerLoad2 = new LOInnerLoad(innerPlan, foreach, 1);
        innerPlan.add(innerLoad2);
       
        LogicalExpressionPlan namePrj = new LogicalExpressionPlan();       
        ProjectExpression prjName = new ProjectExpression(namePrj, DataType.CHARARRAY, 0, 0);
        namePrj.add(prjName);
       
        LogicalExpressionPlan cuisinesPrj = new LogicalExpressionPlan();
        ProjectExpression prjCuisines = new ProjectExpression(cuisinesPrj, DataType.BAG, 1, 0);
        cuisinesPrj.add(prjCuisines);
       
        List<LogicalExpressionPlan> expPlans = new ArrayList<LogicalExpressionPlan>();
        expPlans.add(namePrj);
        expPlans.add(cuisinesPrj);
       
        boolean flatten[] = new boolean[2];
        flatten[0] = false;
        flatten[1] = true;
       
        LOGenerate generate = new LOGenerate(innerPlan, expPlans, flatten);       
        innerPlan.add(generate);
        innerPlan.connect(innerLoad, generate);
        innerPlan.connect(innerLoad2, generate);
       
        foreach.setInnerPlan(innerPlan);
        foreach.setAlias("B");
        plan.add(foreach);
       
        plan.connect(load, foreach);
       
        filter = new LOFilter(plan);
        LogicalExpressionPlan filterPlan = new LogicalExpressionPlan();
        ProjectExpression namePrj2 = new ProjectExpression(filterPlan, DataType.CHARARRAY, 0, 1);
        filterPlan.add(namePrj2);
        ConstantExpression constExp = new ConstantExpression(filterPlan, DataType.CHARARRAY, "joe");
        filterPlan.add(constExp);
        EqualExpression equal = new EqualExpression(filterPlan, namePrj2, constExp);
        filterPlan.add(equal);
       
        filter.setFilterPlan(filterPlan);
        filter.setAlias("C");
        plan.add(filter);
       
        LOFilter filter2 = new LOFilter(plan);
        LogicalExpressionPlan filter2Plan = new LogicalExpressionPlan();
        ProjectExpression name2Prj2 = new ProjectExpression(filter2Plan, DataType.CHARARRAY, 0, 1);
        filter2Plan.add(name2Prj2);
        ConstantExpression const2Exp = new ConstantExpression(filter2Plan, DataType.CHARARRAY, "joe2");
        filter2Plan.add(const2Exp);
        EqualExpression equal2 = new EqualExpression(filter2Plan, namePrj2, constExp);
        filter2Plan.add(equal2);
       
        filter2.setFilterPlan(filter2Plan);
        filter2.setAlias("C1");
        plan.add(filter2);
       
        plan.connect(foreach, filter2);
        plan.connect(filter2, filter);
       
View Full Code Here

Examples of org.apache.pig.experimental.logical.relational.LOFilter

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        // -> filter $1 == 'joe' --> stor

        LogicalPlan plan = null;
        LOLoad load = null;
        LOForEach foreach = null;
        LOFilter filter = null;
        LOStore stor = null;

        plan = new LogicalPlan();

        LogicalSchema schema = new LogicalSchema();
        schema.addField(new LogicalSchema.LogicalFieldSchema("name", null, DataType.CHARARRAY));
        LogicalSchema bagSchema = new LogicalSchema();
        LogicalSchema bagTupleSchema = new LogicalSchema();
        bagTupleSchema.addField( new LogicalSchema.LogicalFieldSchema("name", null, DataType.CHARARRAY) );
        bagSchema.addField( new LogicalSchema.LogicalFieldSchema( "t", bagTupleSchema, DataType.TUPLE ) );
        schema.addField(new LogicalSchema.LogicalFieldSchema("cuisines", bagSchema, DataType.BAG));
       
        load = new LOLoad(null, schema, plan);
        load.setAlias("A");
        plan.add(load);
       
        foreach = new LOForEach(plan);
       
        LogicalPlan innerPlan = new LogicalPlan();
        LOInnerLoad innerLoad = new LOInnerLoad(innerPlan, foreach, 0);
        innerPlan.add(innerLoad);
       
        LOInnerLoad innerLoad2 = new LOInnerLoad(innerPlan, foreach, 1);
        innerPlan.add(innerLoad2);
       
        LogicalExpressionPlan namePrj = new LogicalExpressionPlan();       
        ProjectExpression prjName = new ProjectExpression(namePrj, DataType.CHARARRAY, 0, 0);
        namePrj.add(prjName);
       
        LogicalExpressionPlan cuisinesPrj = new LogicalExpressionPlan();
        ProjectExpression prjCuisines = new ProjectExpression(cuisinesPrj, DataType.BAG, 1, 0);
        cuisinesPrj.add(prjCuisines);
       
        List<LogicalExpressionPlan> expPlans = new ArrayList<LogicalExpressionPlan>();
        expPlans.add(namePrj);
        expPlans.add(cuisinesPrj);
       
        boolean flatten[] = new boolean[2];
        flatten[0] = false;
        flatten[1] = true;
       
        LOGenerate generate = new LOGenerate(innerPlan, expPlans, flatten);       
        innerPlan.add(generate);
        innerPlan.connect(innerLoad, generate);
        innerPlan.connect(innerLoad2, generate);
       
        foreach.setInnerPlan(innerPlan);
        foreach.setAlias("B");
        plan.add(foreach);
       
        plan.connect(load, foreach);
       
        filter = new LOFilter(plan);
        LogicalExpressionPlan filterPlan = new LogicalExpressionPlan();
        ProjectExpression namePrj2 = new ProjectExpression(filterPlan, DataType.CHARARRAY, 0, 1);
        filterPlan.add(namePrj2);
        ConstantExpression constExp = new ConstantExpression(filterPlan, DataType.CHARARRAY, "joe");
        filterPlan.add(constExp);
        EqualExpression equal = new EqualExpression(filterPlan, namePrj2, constExp);
        filterPlan.add(equal);
       
        filter.setFilterPlan(filterPlan);
        filter.setAlias("C");
        plan.add(filter);
       
        plan.connect(foreach, filter);
       
        stor = new LOStore(plan);
View Full Code Here

Examples of org.apache.pig.experimental.logical.relational.LOFilter

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        // -> filter name == 'joe' --> stor
       
        LogicalPlan plan = null;
        LOLoad load = null;
        LOForEach foreach = null;
        LOFilter filter = null;
        LOStore stor = null;
       
        plan = new LogicalPlan();
       
        LogicalSchema schema = new LogicalSchema();
        schema.addField(new LogicalSchema.LogicalFieldSchema("name", null, DataType.CHARARRAY));
        LogicalSchema bagSchema = new LogicalSchema();
        LogicalSchema bagTupleSchema = new LogicalSchema();
        bagTupleSchema.addField( new LogicalSchema.LogicalFieldSchema("name", null, DataType.CHARARRAY) );
        bagSchema.addField( new LogicalSchema.LogicalFieldSchema( "t", bagTupleSchema, DataType.TUPLE ) );
        schema.addField(new LogicalSchema.LogicalFieldSchema("cuisines", bagSchema, DataType.BAG));
       
        load = new LOLoad(null, schema, plan);
        load.setAlias("A");
        plan.add(load);
       
        foreach = new LOForEach(plan);
       
        LogicalPlan innerPlan = new LogicalPlan();
        LOInnerLoad innerLoad = new LOInnerLoad(innerPlan, foreach, 0);
        innerPlan.add(innerLoad);
       
        LOInnerLoad innerLoad2 = new LOInnerLoad(innerPlan, foreach, 1);
        innerPlan.add(innerLoad2);
       
        LogicalExpressionPlan namePrj = new LogicalExpressionPlan();       
        ProjectExpression prjName = new ProjectExpression(namePrj, DataType.CHARARRAY, 0, 0);
        namePrj.add(prjName);
       
        LogicalExpressionPlan cuisinesPrj = new LogicalExpressionPlan();
        ProjectExpression prjCuisines = new ProjectExpression(cuisinesPrj, DataType.BAG, 1, 0);
        cuisinesPrj.add(prjCuisines);
       
        List<LogicalExpressionPlan> expPlans = new ArrayList<LogicalExpressionPlan>();
        expPlans.add(namePrj);
        expPlans.add(cuisinesPrj);
       
        boolean flatten[] = new boolean[2];
        flatten[0] = false;
        flatten[1] = false;
       
        LOGenerate generate = new LOGenerate(innerPlan, expPlans, flatten);       
        innerPlan.add(generate);
        innerPlan.connect(innerLoad, generate);
        innerPlan.connect(innerLoad2, generate);
       
        foreach.setInnerPlan(innerPlan);
        foreach.setAlias("B");
        plan.add(foreach);
       
        plan.connect(load, foreach);
       
        filter = new LOFilter(plan);
        LogicalExpressionPlan filterPlan = new LogicalExpressionPlan();
        ProjectExpression namePrj2 = new ProjectExpression(filterPlan, DataType.CHARARRAY, 0, 0);
        filterPlan.add(namePrj2);
        ConstantExpression constExp = new ConstantExpression(filterPlan, DataType.CHARARRAY, "joe");
        filterPlan.add(constExp);
        EqualExpression equal = new EqualExpression(filterPlan, namePrj2, constExp);
        filterPlan.add(equal);
       
        filter.setFilterPlan(filterPlan);
        filter.setAlias("C");
        plan.add(filter);
       
        plan.connect(foreach, filter);
       
        stor = new LOStore(plan);
View Full Code Here

Examples of org.apache.pig.impl.logicalLayer.LOFilter

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    }

    @Override
    public boolean check(List<LogicalOperator> nodes) throws OptimizerException {
        try {
            LOFilter filter = (LOFilter) getOperator(nodes);
            List<LogicalOperator> predecessors = (mPlan.getPredecessors(filter) == null ? null
                    : new ArrayList<LogicalOperator>(mPlan
                            .getPredecessors(filter)));

            // if there are no predecessors return false
            if (predecessors == null) {
                return false;
            }

            // if the filter has no predecessors or more than one predecessor
            // return false
            if (predecessors.size() == 0 || predecessors.size() > 1) {
                return false;
            }
               
            LogicalOperator predecessor = predecessors.get(0);

            // if the predecessor is one of LOLoad/LOStore/LOStream/LOLimit/LONative
            // return false
            if (predecessor instanceof LOLoad || predecessor instanceof LOStore
                    || predecessor instanceof LOStream
                    || predecessor instanceof LOLimit
                    || predecessor instanceof LONative) {
                return false;
            }
           
            // TODO
            // for now filters cannot be combined
            // remove this check when filters can be combined
            if (predecessor instanceof LOFilter)
                return false;

            // TODO
            // same rule as filters
            if (predecessor instanceof LOSplitOutput) {
                return false;
            }
            if (predecessor instanceof LOSplit) {
                return false;
            }

            UDFFinder udfFinder = new UDFFinder(filter.getComparisonPlan());
            udfFinder.visit();

            // if the filter's inner plan contains any UDF then return false
            if (udfFinder.foundAnyUDF()) {
                return false;
            }

            CastFinder castFinder = new CastFinder(filter.getComparisonPlan());
            castFinder.visit();

            // if the filter's inner plan contains any casts then return false
            if (castFinder.foundAnyCast()) {
                return false;
            }

            List<RequiredFields> filterRequiredFields = filter
                    .getRequiredFields();
            if (filterRequiredFields == null) {
                return false;
            }
            RequiredFields requiredField = filterRequiredFields.get(0);
View Full Code Here

Examples of org.apache.pig.impl.logicalLayer.LOFilter

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    @Override
    public void transform(List<LogicalOperator> nodes)
            throws OptimizerException {
        try {
            LOFilter filter = (LOFilter) getOperator(nodes);
            LogicalOperator predecessor = mPlan.getPredecessors(filter).get(0);
            if (mSwap) {
                mPlan.swap(predecessor, filter);
            } else if (mPushBefore) {
                if (mPushBeforeInput == -1) {
View Full Code Here

Examples of org.apache.pig.impl.logicalLayer.LOFilter

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    @Test
    public void testErrNull() throws VisitorException, IOException {
        String query = "filter (load 'a') by $0 is null;";
        LogicalPlan plan = buildPlan(query);
        LOFilter filter = (LOFilter)plan.getLeaves().get(0);
        LogicalPlan innerPlan = filter.getComparisonPlan();
        innerPlan.remove(innerPlan.getRoots().get(0));
        try {
            buildPhysicalPlan(plan);
            fail("Expected error.");
        } catch(VisitorException ve) {
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Examples of org.apache.pig.impl.logicalLayer.LOFilter

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        lpTester.typeCheckPlan(lp);
        lpTester.optimizePlan(lp);
        assertEquals("checking partition filter:",            
                    "((mrkt == 'us') and (srcid == 10))",
                    TestLoader.partFilter.toString());
        LOFilter filter = (LOFilter) lp.getLeaves().get(0);
        String actual = PColFilterExtractor.getExpression(
                (ExpressionOperator) filter.getComparisonPlan().
                getLeaves().get(0)).
                toString().toLowerCase();
        assertEquals("checking trimmed filter expression:",
                "((f5 >= 20) and (f3 == 15))", actual);
    }
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Examples of org.apache.pig.impl.logicalLayer.LOFilter

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        lpTester.typeCheckPlan(lp);
        lpTester.optimizePlan(lp);
        assertEquals("checking partition filter:",            
                    null,
                    TestLoader.partFilter);
        LOFilter filter = (LOFilter) lp.getLeaves().get(0);
        String actual = PColFilterExtractor.getExpression(
                (ExpressionOperator) filter.getComparisonPlan().
                getLeaves().get(0)).
                toString().toLowerCase();
        assertEquals("checking trimmed filter expression:",
                "(((f5 >= 20) and (f2 == 'us')) and (f3 == 15))", actual);
    }
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