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

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

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        lpt.buildPlan("a = load 'd.txt' as (a:int, b:int);");
        lpt.buildPlan("b = foreach a generate ( a < b ? b : a );");       
        LogicalPlan plan = lpt.buildPlan("store b into 'empty';"); 
       
        org.apache.pig.experimental.logical.relational.LogicalPlan newLogicalPlan = migratePlan(plan);
        LogicalRelationalOperator ld =  (LogicalRelationalOperator)newLogicalPlan.getSources().get(0);
        assertEquals( LOLoad.class, ld.getClass() );
        LOLoad load = (LOLoad)ld;
        LogicalSchema ls = load.getSchema();
       
        PhysicalPlan phyPlan = translatePlan(newLogicalPlan);
       
        PhysicalOperator pFE = phyPlan.getSuccessors( phyPlan.getRoots().get(0) ).get(0);
        assertEquals( POForEach.class, pFE.getClass() );
        POForEach pForEach = (POForEach)pFE;
        PhysicalPlan inputPln = pForEach.getInputPlans().get(0);
       
        assertEquals(1, ls.getField(0).uid);
        assertEquals(2, ls.getField(1).uid);
       
        LogicalRelationalOperator fe =
            (LogicalRelationalOperator) newLogicalPlan.getSuccessors(load).get(0);
        assertEquals( LOForEach.class, fe.getClass() );
        LOForEach forEach = (LOForEach)fe;
       
        org.apache.pig.experimental.logical.relational.LogicalPlan innerPlan =
            forEach.getInnerPlan();
       
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        lpt.buildPlan("a = load 'd.txt' as (a:int, b:bag{t:tuple(b_a:int,b_b:int)});");
        lpt.buildPlan("b = foreach a generate a,COUNT(b);");
        LogicalPlan plan = lpt.buildPlan("store b into 'empty';"); 
       
        org.apache.pig.experimental.logical.relational.LogicalPlan newLogicalPlan = migratePlan(plan);
        LogicalRelationalOperator ld =  (LogicalRelationalOperator)newLogicalPlan.getSources().get(0);
        assertEquals( LOLoad.class, ld.getClass() );
        LOLoad load = (LOLoad)ld;
        LogicalSchema ls = load.getSchema();
       
        PhysicalPlan phyPlan = translatePlan(newLogicalPlan);
       
        PhysicalOperator pFE = phyPlan.getSuccessors( phyPlan.getRoots().get(0) ).get(0);
        assertEquals( POForEach.class, pFE.getClass() );
        POForEach pForEach = (POForEach)pFE;
        PhysicalPlan inputPln1 = pForEach.getInputPlans().get(0);
       
        assertEquals(1, ls.getField(0).uid);
        assertEquals(2, ls.getField(1).uid);
       
        LogicalRelationalOperator fe =
            (LogicalRelationalOperator) newLogicalPlan.getSuccessors(load).get(0);
        assertEquals( LOForEach.class, fe.getClass() );
        LOForEach forEach = (LOForEach)fe;
       
        org.apache.pig.experimental.logical.relational.LogicalPlan innerPlan =
            forEach.getInnerPlan();
       
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        lpt.buildPlan("a = load 'd.txt' as (a:int, b:bag{t:tuple(b_a:int,b_b:int)});");
        lpt.buildPlan("b = foreach a generate a,COUNT(b.b_a);");
        LogicalPlan plan = lpt.buildPlan("store b into 'empty';"); 
       
        org.apache.pig.experimental.logical.relational.LogicalPlan newLogicalPlan = migratePlan(plan);
        LogicalRelationalOperator ld =  (LogicalRelationalOperator)newLogicalPlan.getSources().get(0);
        assertEquals( LOLoad.class, ld.getClass() );
        LOLoad load = (LOLoad)ld;
        LogicalSchema ls = load.getSchema();
       
        PhysicalPlan phyPlan = translatePlan(newLogicalPlan);
       
        PhysicalOperator pFE = phyPlan.getSuccessors( phyPlan.getRoots().get(0) ).get(0);
        assertEquals( POForEach.class, pFE.getClass() );
        POForEach pForEach = (POForEach)pFE;
        PhysicalPlan inputPln = pForEach.getInputPlans().get(0);
       
        assertEquals(1, ls.getField(0).uid);
        assertEquals(2, ls.getField(1).uid);
       
        LogicalRelationalOperator fe =
            (LogicalRelationalOperator) newLogicalPlan.getSuccessors(load).get(0);
        assertEquals( LOForEach.class, fe.getClass() );
        LOForEach forEach = (LOForEach)fe;
       
        org.apache.pig.experimental.logical.relational.LogicalPlan innerPlan =
            forEach.getInnerPlan();
       
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        org.apache.pig.experimental.logical.relational.LogicalPlan newPlan = migratePlan(plan);
        assertEquals(3, newPlan.size());
        assertEquals(newPlan.getSources().size(), 1);
       
        // check load
        LogicalRelationalOperator op = (LogicalRelationalOperator)newPlan.getSources().get(0);
        assertEquals(op.getClass(), org.apache.pig.experimental.logical.relational.LOLoad.class);
       
        // check filter
        op = (LogicalRelationalOperator)newPlan.getSuccessors(op).get(0);
        assertEquals(op.getClass(), org.apache.pig.experimental.logical.relational.LOFilter.class);
       
        LogicalExpressionPlan exp = ((org.apache.pig.experimental.logical.relational.LOFilter)op).getFilterPlan();
       
        EqualExpression eq = (EqualExpression)exp.getSources().get(0);
        assertEquals(eq.getLhs().getClass(), ProjectExpression.class);
        assertEquals(((ProjectExpression)eq.getLhs()).getColNum(), 0);
        assertEquals(((ProjectExpression)eq.getLhs()).getInputNum(), 0);
       
        assertEquals(eq.getRhs().getClass(), ConstantExpression.class);
       
        // check store
        op = (LogicalRelationalOperator)newPlan.getSuccessors(op).get(0);
        assertEquals(op.getClass(), org.apache.pig.experimental.logical.relational.LOStore.class);
    }
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        org.apache.pig.experimental.logical.relational.LogicalPlan newPlan = migratePlan(plan);
        assertEquals(3, newPlan.size());
        assertEquals(newPlan.getSources().size(), 1);
       
        // check load
        LogicalRelationalOperator op = (LogicalRelationalOperator)newPlan.getSources().get(0);
        assertEquals(op.getClass(), org.apache.pig.experimental.logical.relational.LOLoad.class);
       
        // check filter
        op = (LogicalRelationalOperator)newPlan.getSuccessors(op).get(0);
        assertEquals(op.getClass(), org.apache.pig.experimental.logical.relational.LOFilter.class);
       
        LogicalExpressionPlan exp = ((org.apache.pig.experimental.logical.relational.LOFilter)op).getFilterPlan();
       
        EqualExpression eq = (EqualExpression)exp.getSources().get(0);
        assertEquals(eq.getLhs().getClass(), CastExpression.class);
               
        assertEquals(eq.getLhs().getClass(), CastExpression.class);
        LogicalExpression ep = (LogicalExpression)exp.getSuccessors(eq.getLhs()).get(0);
        assertEquals(ep.getClass(), ProjectExpression.class);
        assertEquals(((ProjectExpression)ep).getColNum(), 0);
        assertEquals(((ProjectExpression)ep).getInputNum(), 0);
       
        assertEquals(eq.getRhs().getClass(), ConstantExpression.class);
       
        // check store
        op = (LogicalRelationalOperator)newPlan.getSuccessors(op).get(0);
        assertEquals(op.getClass(), org.apache.pig.experimental.logical.relational.LOStore.class);
    }
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        org.apache.pig.experimental.logical.relational.LogicalPlan newPlan = migratePlan(plan);
        assertEquals(5, newPlan.size());
        assertEquals(newPlan.getSources().size(), 2);
      
        // check load and join
        LogicalRelationalOperator op = (LogicalRelationalOperator)newPlan.getSuccessors(newPlan.getSources().get(0)).get(0);
        assertEquals(op.getClass(), org.apache.pig.experimental.logical.relational.LOJoin.class);
        assertEquals(((LOJoin)op).getJoinType(), LOJoin.JOINTYPE.HASH);
       
        LogicalRelationalOperator l1 = (LogicalRelationalOperator)newPlan.getPredecessors(op).get(0);
        assertEquals(l1.getClass(), org.apache.pig.experimental.logical.relational.LOLoad.class);
        assertEquals(l1.getAlias(), "a");
       
        LogicalRelationalOperator l2 = (LogicalRelationalOperator)newPlan.getPredecessors(op).get(1);
        assertEquals(l2.getClass(), org.apache.pig.experimental.logical.relational.LOLoad.class);
        assertEquals(l2.getAlias(), "b");

        // check join input plans
        LogicalExpressionPlan p1 = ((LOJoin)op).getJoinPlan(0).iterator().next();
        assertEquals(p1.size(), 1);
       
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        LogicalPlanTester lpt = new LogicalPlanTester();
        lpt.buildPlan("a = load '/test/d.txt' as (id, d:tuple(v, s));");
        LogicalPlan plan = lpt.buildPlan("b = foreach a generate id, FLATTEN(d);"); 
               
        org.apache.pig.experimental.logical.relational.LogicalPlan newPlan = migratePlan(plan);
        LogicalRelationalOperator op = (LogicalRelationalOperator)newPlan.getSinks().get(0);
       
        LogicalSchema s2 = new LogicalSchema();
        s2.addField(new LogicalSchema.LogicalFieldSchema("id", null, DataType.BYTEARRAY));
        s2.addField(new LogicalSchema.LogicalFieldSchema("v", null, DataType.BYTEARRAY));
        s2.addField(new LogicalSchema.LogicalFieldSchema("s", null, DataType.BYTEARRAY));
        assertTrue(s2.isEqual(op.getSchema()));
       
        // test no flatten
        lpt = new LogicalPlanTester();
        lpt.buildPlan("a = load '/test/d.txt' as (id, d:bag{t:(v, s)});");
        plan = lpt.buildPlan("b = foreach a generate id, d;"); 
               
        newPlan = migratePlan(plan);
        op = (LogicalRelationalOperator)newPlan.getSinks().get(0);
       
        LogicalSchema aschema = new LogicalSchema();     
        aschema.addField(new LogicalSchema.LogicalFieldSchema("id", null, DataType.BYTEARRAY));
        LogicalSchema aschema2 = new LogicalSchema();
        LogicalSchema aschema3 = new LogicalSchema();
        aschema3.addField(new LogicalSchema.LogicalFieldSchema("v", null, DataType.BYTEARRAY));
        aschema3.addField(new LogicalSchema.LogicalFieldSchema("s", null, DataType.BYTEARRAY));
        aschema2.addField(new LogicalSchema.LogicalFieldSchema("t", aschema3, DataType.TUPLE));
        aschema.addField(new LogicalSchema.LogicalFieldSchema("d", aschema2, DataType.BAG)); 
       
        assertTrue(aschema.isEqual(op.getSchema()));
       
        // check with defined data type
        lpt = new LogicalPlanTester();
        lpt.buildPlan("a = load '/test/d.txt' as (id, d:bag{t:(v:int, s)});");
        lpt.buildPlan("b = foreach a generate id, FLATTEN(d);");       
        plan = lpt.buildPlan("store b into '/test/empty';");
               
        newPlan = migratePlan(plan);
        op = (LogicalRelationalOperator)newPlan.getSinks().get(0);
        op = (LogicalRelationalOperator)newPlan.getPredecessors(op).get(0);
        LogicalSchema schema = op.getSchema();
       
        aschema = new LogicalSchema();
        aschema.addField(new LogicalSchema.LogicalFieldSchema("id", null, DataType.BYTEARRAY));
        aschema.addField(new LogicalSchema.LogicalFieldSchema("v", null, DataType.INTEGER));
        aschema.addField(new LogicalSchema.LogicalFieldSchema("s", null, DataType.BYTEARRAY));
        assertTrue(schema.isEqual(aschema));
     
   
        // test with add
        lpt = new LogicalPlanTester();
        lpt.buildPlan("a = load '/test/d.txt' as (id, v:int, s:int);");
        lpt.buildPlan("b = foreach a generate id, v+s;");       
        plan = lpt.buildPlan("store b into '/test/empty';");
       
        newPlan = migratePlan(plan);
        op = (LogicalRelationalOperator)newPlan.getSinks().get(0);
        op = (LogicalRelationalOperator)newPlan.getPredecessors(op).get(0);
        schema = op.getSchema();
       
        aschema = new LogicalSchema();
        aschema.addField(new LogicalSchema.LogicalFieldSchema("id", null, DataType.BYTEARRAY));
        aschema.addField(new LogicalSchema.LogicalFieldSchema(null, null, DataType.INTEGER));
        assertTrue(schema.isEqual(aschema));
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        LogicalSchema loadSchema =
            ((LogicalRelationalOperator)newPlan.getSources().get(0)).getSchema();
       
        Set<Long> uids = getAllUids(loadSchema);
       
        LogicalRelationalOperator op = (LogicalRelationalOperator)
            newPlan.getSuccessors( newPlan.getSources().get(0) ).get(0);
        assertEquals( LOCogroup.class, op.getClass() );
        LogicalSchema schema = op.getSchema();
       
        assertEquals( 2, schema.size() );
        assertEquals( DataType.CHARARRAY, schema.getField(0).type );
        assertEquals( false, uids.contains( schema.getField(0).uid ) );
        assertEquals( 0, schema.getField(0).alias.compareTo("group") );
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        LogicalSchema loadSchema =
            ((LogicalRelationalOperator)newPlan.getSources().get(0)).getSchema();
       
        Set<Long> uids = getAllUids(loadSchema);
       
        LogicalRelationalOperator op = (LogicalRelationalOperator)
            newPlan.getSuccessors( newPlan.getSources().get(0) ).get(0);
        assertEquals( LOCogroup.class, op.getClass() );
        LogicalSchema schema = op.getSchema();
       
        assertEquals( 2, schema.size() );
        assertEquals( DataType.TUPLE, schema.getField(0).type );
        assertEquals( false, uids.contains( schema.getField(0).uid ) );
        assertEquals( 0, schema.getField(0).alias.compareTo("group") );
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            ((LogicalRelationalOperator)newPlan.getPredecessors(cogroup).get(1)).getSchema();
       
        Set<Long> uids = getAllUids(loadSchema);
        uids.addAll( getAllUids( load2Schema ) );
       
        LogicalRelationalOperator op = (LogicalRelationalOperator)
            newPlan.getSuccessors( newPlan.getSources().get(0) ).get(0);
        assertEquals( LOCogroup.class, op.getClass() );
        LogicalSchema schema = op.getSchema();
       
        assertEquals( 3, schema.size() );
        assertEquals( DataType.CHARARRAY, schema.getField(0).type );
        assertEquals( false, uids.contains( schema.getField(0).uid ) );
        assertEquals( 0, schema.getField(0).alias.compareTo("group") );
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