Package org.apache.pig.newplan.logical.relational

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

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        C.neverUseForRealSetSchema(cschema);
        // Don't add it to the plan quite yet

        // D = filter
        LogicalExpressionPlan filterPlan = new LogicalExpressionPlan();
        LOFilter D = new LOFilter(lp, filterPlan);
        ProjectExpression fy = new ProjectExpression(filterPlan, 0, 1, D);
        fy.neverUseForRealSetFieldSchema(new LogicalFieldSchema(null, null,
                DataType.INTEGER, 2));
        ConstantExpression fc = new ConstantExpression(filterPlan, new Integer(0));
        new EqualExpression(filterPlan, fy, fc);

        D.neverUseForRealSetSchema(cschema);
        // Connect D to B, since the transform has happened.
        lp.add(D);
        lp.connect(B, D);

        // Now add in C, connected to A and D.
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        patcher.transformed(lp, changedPlan);

        // Check that the filter now has the proper schema.
        List<Operator> roots = changedPlan.getSources();
        assertEquals(1, roots.size());
        LOFilter D = (LOFilter)roots.get(0);
        assertNotNull(D);
        LogicalSchema dschema = D.getSchema();
        assertEquals(1, dschema.size());
        LogicalSchema.LogicalFieldSchema y = dschema.getField(0);
        assertEquals("y", y.alias);
        assertEquals(2, y.uid);
    }
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        patcher.transformed(lp, changedPlan);

        // Check that the projections in filter are now set properly
        List<Operator> roots = changedPlan.getSources();
        assertEquals(1, roots.size());
        LOFilter D = (LOFilter)roots.get(0);
        assertNotNull(D);
        LogicalExpressionPlan filterPlan = D.getFilterPlan();
        List<Operator> leaves = filterPlan.getSinks();
        assertEquals(2, leaves.size());
        ProjectExpression proj = null;
        for (Operator leaf : leaves) {
            if (leaf instanceof ProjectExpression) {
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            lp.connect(A, C);
            lp.connect(B, C);

            // D = filter
            LogicalExpressionPlan filterPlan = new LogicalExpressionPlan();
            LOFilter D = new LOFilter(lp, filterPlan);
            ProjectExpression fx = new ProjectExpression(filterPlan, 0, 0, D);
            ConstantExpression fc0 = new ConstantExpression(filterPlan, new Integer(0));
            EqualExpression eq1 = new EqualExpression(filterPlan, fx, fc0);
            ProjectExpression fanotherx = new ProjectExpression(filterPlan, 0, 0, D);
            ProjectExpression fa = new ProjectExpression(filterPlan, 0, 2, D);
            EqualExpression eq2 = new EqualExpression(filterPlan, fanotherx, fa);
            AndExpression and1 = new AndExpression(filterPlan, eq1, eq2);
            ProjectExpression fb = new ProjectExpression(filterPlan, 0, 3, D);
            ConstantExpression fc1 = new ConstantExpression(filterPlan, new Integer(1));
            EqualExpression eq3 = new EqualExpression(filterPlan, fb, fc1);
            AndExpression and2 = new AndExpression(filterPlan, and1, eq3);
            ProjectExpression fanotherb = new ProjectExpression(filterPlan, 0, 3, D);
            ProjectExpression fy = new ProjectExpression(filterPlan, 0, 1, D);
            EqualExpression eq4 = new EqualExpression(filterPlan, fy, fanotherb);
            new AndExpression(filterPlan, and2, eq4);

            D.setAlias("D");
            // Connect D to B, since the transform has happened.
            lp.add(D);
            lp.connect(C, D);
        }

        System.out.println(lp);
        LogicalPlanOptimizer optimizer = new LogicalPlanOptimizer(lp, 500, null);
        optimizer.optimize();

        LogicalPlan expected = new LogicalPlan();
        {
            // A = load
            LogicalSchema aschema = new LogicalSchema();
            aschema.addField(new LogicalSchema.LogicalFieldSchema(
                "x", null, DataType.BYTEARRAY));
            aschema.addField(new LogicalSchema.LogicalFieldSchema(
                "y", null, DataType.BYTEARRAY));
            LOLoad A = newLOLoad(new FileSpec("bla", new FuncSpec("PigStorage", "\t")), aschema, expected, conf);
            expected.add(A);

            // DA = filter
            LogicalExpressionPlan DAfilterPlan = new LogicalExpressionPlan();
            LOFilter DA = new LOFilter(expected, DAfilterPlan);
            ProjectExpression fx = new ProjectExpression(DAfilterPlan, 0, 0, DA);
            fx.neverUseForRealSetFieldSchema(new LogicalFieldSchema(null, null, DataType.BYTEARRAY));
            ConstantExpression fc0 = new ConstantExpression(DAfilterPlan, new Integer(0));
            new EqualExpression(DAfilterPlan, fx, fc0);

            DA.neverUseForRealSetSchema(aschema);
            expected.add(DA);
            expected.connect(A, DA);

            // B = load
            LogicalSchema bschema = new LogicalSchema();
            bschema.addField(new LogicalSchema.LogicalFieldSchema(
                "a", null, DataType.BYTEARRAY));
            bschema.addField(new LogicalSchema.LogicalFieldSchema(
                "b", null, DataType.BYTEARRAY));
            LOLoad B = newLOLoad(new FileSpec("morebla", new FuncSpec("PigStorage", "\t")), bschema, expected, conf);
            expected.add(B);

            // DB = filter
            LogicalExpressionPlan DBfilterPlan = new LogicalExpressionPlan();
            LOFilter DB = new LOFilter(expected, DBfilterPlan);
            ProjectExpression fb = new ProjectExpression(DBfilterPlan, 0, 1, DB);
            fb.neverUseForRealSetFieldSchema(new LogicalFieldSchema(null, null, DataType.BYTEARRAY));
            ConstantExpression fc1 = new ConstantExpression(DBfilterPlan, new Integer(1));
            new EqualExpression(DBfilterPlan, fb, fc1);

            DB.neverUseForRealSetSchema(bschema);
            expected.add(DB);
            expected.connect(B, DB);

            // C = join
            LogicalSchema cschema = new LogicalSchema();
            cschema.addField(new LogicalSchema.LogicalFieldSchema(
                "D::x", null, DataType.BYTEARRAY));
            cschema.addField(new LogicalSchema.LogicalFieldSchema(
                "D::y", null, DataType.BYTEARRAY));
            cschema.addField(new LogicalSchema.LogicalFieldSchema(
                "null::a", null, DataType.BYTEARRAY));
            cschema.addField(new LogicalSchema.LogicalFieldSchema(
                "null::b", null, DataType.BYTEARRAY));
            cschema.getField(0).uid = 1;
            cschema.getField(1).uid = 2;
            cschema.getField(2).uid = 3;
            cschema.getField(3).uid = 4;
            LogicalExpressionPlan aprojplan = new LogicalExpressionPlan();
            MultiMap<Integer, LogicalExpressionPlan> mm =
                new MultiMap<Integer, LogicalExpressionPlan>();
            LOJoin C = new LOJoin(expected, mm, JOINTYPE.HASH, new boolean[] {true, true});

            ProjectExpression x = new ProjectExpression(aprojplan, 0, 0, C);
            x.neverUseForRealSetFieldSchema(new LogicalFieldSchema(null, null, DataType.BYTEARRAY));
            LogicalExpressionPlan bprojplan = new LogicalExpressionPlan();
            ProjectExpression y = new ProjectExpression(bprojplan, 1, 0, C);
            y.neverUseForRealSetFieldSchema(new LogicalFieldSchema(null, null, DataType.BYTEARRAY));
            mm.put(0, aprojplan);
            mm.put(1, bprojplan);
            C.neverUseForRealSetSchema(cschema);
            expected.add(C);
            expected.connect(DA, C);
            expected.connect(DB, C);

            // D = filter
            LogicalExpressionPlan filterPlan = new LogicalExpressionPlan();
            LOFilter D = new LOFilter(expected, filterPlan);
            ProjectExpression fanotherx = new ProjectExpression(filterPlan, 0, 0, D);
            fanotherx.neverUseForRealSetFieldSchema(new LogicalFieldSchema(null, null, DataType.BYTEARRAY));
            ProjectExpression fa = new ProjectExpression(filterPlan, 0, 2, D);
            fa.neverUseForRealSetFieldSchema(new LogicalFieldSchema(null, null, DataType.BYTEARRAY));
            EqualExpression eq2 = new EqualExpression(filterPlan, fanotherx, fa);
            ProjectExpression fanotherb = new ProjectExpression(filterPlan, 0, 3, D);
            fanotherb.neverUseForRealSetFieldSchema(new LogicalFieldSchema(null, null, DataType.BYTEARRAY));
            ProjectExpression fy = new ProjectExpression(filterPlan, 0, 1, D);
            fy.neverUseForRealSetFieldSchema(new LogicalFieldSchema(null, null, DataType.BYTEARRAY));
            EqualExpression eq4 = new EqualExpression(filterPlan, fy, fanotherb);
            new AndExpression(filterPlan, eq2, eq4);

            D.neverUseForRealSetSchema(cschema);
            expected.add(D);
            expected.connect(C, D);
        }

        SchemaResetter schemaResetter = new SchemaResetter(lp);
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        Assert.assertEquals("checking partition filter:",
                "(((srcid == 10) and (mrkt > '1')) and (mrkt < '5'))",
                TestLoader.partFilter.toString());
        Operator op = newLogicalPlan.getSinks().get(0);
        LOFilter filter = (LOFilter)newLogicalPlan.getPredecessors(op).get(0);

        String actual =
                getTestExpression((LogicalExpression) filter.getFilterPlan().
                        getSources().get(0)).toString();
        Assert.assertEquals("checking trimmed filter expression:",
                "(browser#'type' == IE)", actual);
    }
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            Assert.assertTrue(TestLoader.partFilter == null);
        }

        if (filterExpr != null) {
            Operator op = newLogicalPlan.getSinks().get(0);
            LOFilter filter = (LOFilter)newLogicalPlan.getPredecessors(op).get(0);

            String actual =
                    FilterExtractor.getExpression((LogicalExpression) filter.getFilterPlan().
                            getSources().get(0)).toString();
            Assert.assertEquals("checking trimmed filter expression:",
                    filterExpr, actual);
        } else {
            Iterator<Operator> it = newLogicalPlan.getOperators();
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            String expPartFilterString, String expFilterString, boolean unsupportedExpression)
                    throws Exception {
        PigServer pigServer = new PigServer( pc );
        LogicalPlan newLogicalPlan = Util.buildLp(pigServer, query);
        Operator op = newLogicalPlan.getSinks().get(0);
        LOFilter filter = (LOFilter)newLogicalPlan.getPredecessors(op).get(0);
        FilterExtractor pColExtractor = new FilterExtractor(
                filter.getFilterPlan(), partitionCols);
        pColExtractor.visit();

        if(expPartFilterString == null) {
            Assert.assertEquals("Checking partition column filter:", null,
                    pColExtractor.getPColCondition());
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    // that case, PColExtractor.getPColCondition() should return null.
    private void negativeTest(String query, List<String> partitionCols) throws Exception {
        PigServer pigServer = new PigServer( pc );
        LogicalPlan newLogicalPlan = Util.buildLp(pigServer, query);
        Operator op = newLogicalPlan.getSinks().get(0);
        LOFilter filter = (LOFilter)newLogicalPlan.getPredecessors(op).get(0);
        FilterExtractor extractor = new FilterExtractor(
                filter.getFilterPlan(), partitionCols);
        extractor.visit();
        Assert.assertFalse(extractor.canPushDown());
    }
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                + "store b into 'output';";
        LogicalPlan lp = Util.parse(query, pc);
        Util.optimizeNewLP(lp);

        LOLoad loLoad = (LOLoad)lp.getSources().get(0);
        LOFilter loFilter = (LOFilter)lp.getSuccessors(loLoad).get(0);
        LOStore loStore = (LOStore)lp.getSuccessors(loFilter).get(0);

        assertNull(lp.getSuccessors(loStore));
    }
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            load1.setScriptSchema(org.apache.pig.newplan.logical.Util.translateSchema(inputSchema1));

            // Create inner plan
            LogicalExpressionPlan innerPlan = new LogicalExpressionPlan();
            // filter
            LOFilter filter1 = new LOFilter(plan);
            filter1.setFilterPlan(innerPlan);

            ProjectExpression project1 = new ProjectExpression(innerPlan, 0, 0, filter1);
            ProjectExpression project2 = new ProjectExpression(innerPlan, 0, 1, filter1);

            GreaterThanExpression gt1 = new GreaterThanExpression(innerPlan, project1, project2);

            plan.add(load1);
            plan.add(filter1);
            plan.connect(load1, filter1);

            CompilationMessageCollector collector = new CompilationMessageCollector();
            TypeCheckingRelVisitor typeChecker = new TypeCheckingRelVisitor(plan, collector);
            typeChecker.visit();
            printMessageCollector(collector);
            //printTypeGraph(plan);

            if (collector.hasError()) {
                throw new AssertionError("Expect no error");
            }

            LogicalSchema endResultSchema = filter1.getSchema();
            assertEquals(endResultSchema.getField(0).type, field1Type);
            assertEquals(endResultSchema.getField(1).type, field2Type);

        }
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Related Classes of org.apache.pig.newplan.logical.relational.LOFilter

  • org.apache.pig.builtin.TestOrcStoragePushdown
  • org.apache.pig.newplan.logical.rules.FilterAboveForeach
  • org.apache.pig.newplan.logical.rules.FilterConstantCalculator
  • org.apache.pig.newplan.logical.rules.LogicalExpressionSimplifier
  • org.apache.pig.newplan.logical.rules.LogicalExpressionSimplifier$LogicalExpressionSimplifierTransformer
  • org.apache.pig.newplan.logical.rules.MergeFilter
  • org.apache.pig.newplan.logical.rules.MergeFilter$MergeFilterTransformer
  • org.apache.pig.newplan.logical.rules.PushUpFilter
  • org.apache.pig.newplan.logical.rules.PushUpFilter$PushUpFilterTransformer
  • org.apache.pig.newplan.logical.rules.SplitFilter
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