Package org.apache.pig.experimental.logical.relational

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

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    @Test
    public void testLoadEqualityDifferentFunctionNames() {
        LogicalPlan lp = new LogicalPlan();
       
        LogicalSchema aschema1 = new LogicalSchema();
        aschema1.addField(new LogicalSchema.LogicalFieldSchema(
            "x", null, DataType.INTEGER));
        LOLoad load1 = new LOLoad(new FileSpec("/abc",
            new FuncSpec("foo", new String[] {"x", "y"})), aschema1, lp);
        lp.add(load1);
       
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    }
   
    @Test
    public void testLoadEqualityDifferentFileName() {
        LogicalPlan lp = new LogicalPlan();
        LogicalSchema aschema1 = new LogicalSchema();
        aschema1.addField(new LogicalSchema.LogicalFieldSchema(
            "x", null, DataType.INTEGER));
        LOLoad load1 = new LOLoad(new FileSpec("/abc",
            new FuncSpec("foo", new String[] {"x", "y"})), aschema1, lp);
        lp.add(load1);
   
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    }
   
    @Test
    public void testRelationalEqualityDifferentSchema() {
        LogicalPlan lp = new LogicalPlan();
        LogicalSchema aschema1 = new LogicalSchema();
        aschema1.addField(new LogicalSchema.LogicalFieldSchema(
            "x", null, DataType.INTEGER));
        LOLoad load1 = new LOLoad(new FileSpec("/abc",
            new FuncSpec("foo", new String[] {"x", "y"})), aschema1, lp);
        lp.add(load1);
       
        // Different schema
        LogicalSchema aschema2 = new LogicalSchema();
        aschema2.addField(new LogicalSchema.LogicalFieldSchema(
            "x", null, DataType.CHARARRAY));
       
        LOLoad load6 = new LOLoad(new FileSpec("/abc",
            new FuncSpec("foo", new String[] {"x", "z"})), aschema2, lp);
        lp.add(load6);
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    }
   
    @Test
    public void testRelationalEqualityOneNullOneNotNullSchema() {
        LogicalPlan lp = new LogicalPlan();
        LogicalSchema aschema1 = new LogicalSchema();
        aschema1.addField(new LogicalSchema.LogicalFieldSchema(
            "x", null, DataType.INTEGER));
        LOLoad load1 = new LOLoad(new FileSpec("/abc",
            new FuncSpec("foo", new String[] {"x", "y"})), aschema1, lp);
        lp.add(load1);
       
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        ProjectExpression fy1 = new ProjectExpression(fp1, DataType.INTEGER, 0, 1);
        ConstantExpression fc1 = new ConstantExpression(fp1, DataType.INTEGER,
            new Integer(0));
        new EqualExpression(fp1, fy1, fc1);
        LOFilter D1 = new LOFilter(lp, fp1);
        LogicalSchema cschema = new LogicalSchema();
        cschema.addField(new LogicalSchema.LogicalFieldSchema(
            "x", null, DataType.INTEGER));
        cschema.addField(new LogicalSchema.LogicalFieldSchema(
            "y", null, DataType.INTEGER));
        D1.neverUseForRealSetSchema(cschema);
        lp.add(D1);
       
        LogicalExpressionPlan fp2 = new LogicalExpressionPlan();
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    // func, and I don't want to mess with that here.
   
    @Test
    public void testJoinDifferentJoinTypes() throws IOException {
       LogicalPlan lp = new LogicalPlan();
       LogicalSchema jaschema1 = new LogicalSchema();
       jaschema1.addField(new LogicalSchema.LogicalFieldSchema(
           "x", null, DataType.INTEGER));
       LOLoad A1 = new LOLoad(new FileSpec("/abc",
           new FuncSpec("/fooload", new String[] {"x", "y"})), jaschema1, lp);
       lp.add(A1);
       
        // B = load
        LogicalSchema jbschema1 = new LogicalSchema();
        jbschema1.addField(new LogicalSchema.LogicalFieldSchema(
            "y", null, DataType.INTEGER));
        LOLoad B1 = new LOLoad(new FileSpec("/def",
            new FuncSpec("PigStorage", "\t")), jbschema1, lp);
        lp.add(B1);
       
        // C = join
        LogicalSchema jcschema1 = new LogicalSchema();
        jcschema1.addField(new LogicalSchema.LogicalFieldSchema(
            "x", null, DataType.INTEGER));
        jcschema1.addField(new LogicalSchema.LogicalFieldSchema(
            "y", null, DataType.INTEGER));
        LogicalExpressionPlan aprojplan1 = new LogicalExpressionPlan();
        new ProjectExpression(aprojplan1, DataType.INTEGER, 0, 0);
        LogicalExpressionPlan bprojplan1 = new LogicalExpressionPlan();
        new ProjectExpression(bprojplan1, DataType.INTEGER, 1, 0);
        MultiMap<Integer, LogicalExpressionPlan> mm1 =
            new MultiMap<Integer, LogicalExpressionPlan>();
        mm1.put(0, aprojplan1);
        mm1.put(1, bprojplan1);
        LOJoin C1 = new LOJoin(lp, mm1, JOINTYPE.HASH, new boolean[] {true, true});
        C1.neverUseForRealSetSchema(jcschema1);
        lp.add(C1);
        lp.connect(A1, C1);
        lp.connect(B1, C1);
       
        // A = load
        LogicalSchema jaschema2 = new LogicalSchema();
        jaschema2.addField(new LogicalSchema.LogicalFieldSchema(
           "x", null, DataType.INTEGER));
        LOLoad A2 = new LOLoad(new FileSpec("/abc",
           new FuncSpec("/fooload", new String[] {"x", "y"})), jaschema2, lp);
        lp.add(A2);
       
        // B = load
        LogicalSchema jbschema2 = new LogicalSchema();
        jbschema2.addField(new LogicalSchema.LogicalFieldSchema(
            "y", null, DataType.INTEGER));
        LOLoad B2 = new LOLoad(new FileSpec("/def",
            new FuncSpec("PigStorage", "\t")), jbschema2, lp);
        lp.add(B2);
       
        // C = join
        LogicalSchema jcschema2 = new LogicalSchema();
        jcschema2.addField(new LogicalSchema.LogicalFieldSchema(
            "x", null, DataType.INTEGER));
        jcschema2.addField(new LogicalSchema.LogicalFieldSchema(
            "y", null, DataType.INTEGER));
        LogicalExpressionPlan aprojplan2 = new LogicalExpressionPlan();
        new ProjectExpression(aprojplan2, DataType.INTEGER, 0, 0);
        LogicalExpressionPlan bprojplan2 = new LogicalExpressionPlan();
        new ProjectExpression(bprojplan2, DataType.INTEGER, 1, 0);
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    }
   
    @Test
    public void testJoinDifferentInner() throws IOException {
        LogicalPlan lp = new LogicalPlan();
               LogicalSchema jaschema1 = new LogicalSchema();
       jaschema1.addField(new LogicalSchema.LogicalFieldSchema(
           "x", null, DataType.INTEGER));
       LOLoad A1 = new LOLoad(new FileSpec("/abc",
           new FuncSpec("/fooload", new String[] {"x", "y"})), jaschema1, lp);
       lp.add(A1);
       
        // B = load
        LogicalSchema jbschema1 = new LogicalSchema();
        jbschema1.addField(new LogicalSchema.LogicalFieldSchema(
            "y", null, DataType.INTEGER));
        LOLoad B1 = new LOLoad(new FileSpec("/def",
            new FuncSpec("PigStorage", "\t")), jbschema1, lp);
        lp.add(B1);
       
        // C = join
        LogicalSchema jcschema1 = new LogicalSchema();
        jcschema1.addField(new LogicalSchema.LogicalFieldSchema(
            "x", null, DataType.INTEGER));
        jcschema1.addField(new LogicalSchema.LogicalFieldSchema(
            "y", null, DataType.INTEGER));
        LogicalExpressionPlan aprojplan1 = new LogicalExpressionPlan();
        new ProjectExpression(aprojplan1, DataType.INTEGER, 0, 0);
        LogicalExpressionPlan bprojplan1 = new LogicalExpressionPlan();
        new ProjectExpression(bprojplan1, DataType.INTEGER, 1, 0);
        MultiMap<Integer, LogicalExpressionPlan> mm1 =
            new MultiMap<Integer, LogicalExpressionPlan>();
        mm1.put(0, aprojplan1);
        mm1.put(1, bprojplan1);
        LOJoin C1 = new LOJoin(lp, mm1, JOINTYPE.HASH, new boolean[] {true, true});
        C1.neverUseForRealSetSchema(jcschema1);
        lp.add(C1);
        lp.connect(A1, C1);
        lp.connect(B1, C1);
       
        // Test different inner status
        // A = load
        LogicalSchema jaschema3 = new LogicalSchema();
        jaschema3.addField(new LogicalSchema.LogicalFieldSchema(
           "x", null, DataType.INTEGER));
        LOLoad A3 = new LOLoad(new FileSpec("/abc",
           new FuncSpec("/fooload", new String[] {"x", "y"})), jaschema3, lp);
        lp.add(A3);
       
        // B = load
        LogicalSchema jbschema3 = new LogicalSchema();
        jbschema3.addField(new LogicalSchema.LogicalFieldSchema(
            "y", null, DataType.INTEGER));
        LOLoad B3 = new LOLoad(new FileSpec("/def",
            new FuncSpec("PigStorage", "\t")), jbschema3, lp);
        lp.add(B3);
       
        // C = join
        LogicalSchema jcschema3 = new LogicalSchema();
        jcschema3.addField(new LogicalSchema.LogicalFieldSchema(
            "x", null, DataType.INTEGER));
        jcschema3.addField(new LogicalSchema.LogicalFieldSchema(
            "y", null, DataType.INTEGER));
        LogicalExpressionPlan aprojplan3 = new LogicalExpressionPlan();
        new ProjectExpression(aprojplan3, DataType.INTEGER, 0, 0);
        LogicalExpressionPlan bprojplan3 = new LogicalExpressionPlan();
        new ProjectExpression(bprojplan3, DataType.INTEGER, 1, 0);
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        // D = filter C by y > 0;
        // The plan is built with the filter having been pushed above the join
        // but the listners not yet having been called.
        // A = load
        lp = new LogicalPlan();
        LogicalSchema aschema = new LogicalSchema();
        aschema.addField(new LogicalSchema.LogicalFieldSchema(
            "x", null, DataType.INTEGER));
        aschema.getField(0).uid = 1;
        LOLoad A = new LOLoad(null, aschema, lp);
        lp.add(A);
       
        // B = load
        LogicalSchema bschema = new LogicalSchema();
        bschema.addField(new LogicalSchema.LogicalFieldSchema(
            "y", null, DataType.INTEGER));
        bschema.getField(0).uid = 2;
        LOLoad B = new LOLoad(null, bschema, lp);
        lp.add(B);
       
        // C = join
        LogicalSchema cschema = new LogicalSchema();
        cschema.addField(new LogicalSchema.LogicalFieldSchema(
            "x", null, DataType.INTEGER));
        cschema.addField(new LogicalSchema.LogicalFieldSchema(
            "y", null, DataType.INTEGER));
        cschema.getField(0).uid = 1;
        cschema.getField(1).uid = 2;
        LogicalExpressionPlan aprojplan = new LogicalExpressionPlan();
        ProjectExpression x = new ProjectExpression(aprojplan, DataType.INTEGER, 0, 0);
        x.neverUseForRealSetUid(1);
        LogicalExpressionPlan bprojplan = new LogicalExpressionPlan();
        ProjectExpression y = new ProjectExpression(bprojplan, DataType.INTEGER, 1, 0);
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        // 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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        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");
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Related Classes of org.apache.pig.experimental.logical.relational.LogicalSchema

  • org.apache.pig.experimental.logical.expression.ProjectExpression
  • org.apache.pig.experimental.logical.LogicalPlanMigrationVistor
  • org.apache.pig.experimental.logical.optimizer.ProjectionPatcher$ProjectionRewriter
  • org.apache.pig.experimental.logical.optimizer.UidStamper
  • org.apache.pig.experimental.logical.rules.AddForEach$AddForEachTransformer
  • org.apache.pig.experimental.logical.rules.ColumnMapKeyPrune$ColumnMapKeyPruneTransformer$ColumnPruneVisitor
  • org.apache.pig.experimental.logical.rules.ColumnPruneHelper
  • org.apache.pig.experimental.logical.rules.ColumnPruneHelper$ColumnDependencyVisitor
  • org.apache.pig.experimental.logical.rules.MapKeysPruneHelper
  • org.apache.pig.experimental.logical.rules.PushUpFilter$PushUpFilterTransformer
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