Package org.apache.pig.impl.plan

Examples of org.apache.pig.impl.plan.ProjectionMap.changes()

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        assertTrue(loadProjectionMap.changes() == false);
       
        //check that the stream projection map is null
        LOStream stream = (LOStream)lp.getLeaves().get(0);
        ProjectionMap streamProjectionMap = stream.getProjectionMap();
        assertTrue(streamProjectionMap.changes() == true);
        assertTrue(streamProjectionMap.getMappedFields() == null);
       
        //check that removed fields has all the columns from the input load
        List<Pair<Integer, Integer>> streamRemovedFields = streamProjectionMap.getRemovedFields();
        assertTrue(streamRemovedFields.size() == 2);
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        LogicalPlan lp = planTester.buildPlan("d = foreach c generate group,flatten(a),flatten(b);");

        //check that the loads' projection map is null
        LOLoad loada = (LOLoad) lp.getRoots().get(0);
        ProjectionMap loadaProjectionMap = loada.getProjectionMap();
        assertTrue(loadaProjectionMap.changes() == false);
       
        LOLoad loadb = (LOLoad) lp.getRoots().get(1);
        ProjectionMap loadbProjectionMap = loadb.getProjectionMap();
        assertTrue(loadbProjectionMap.changes() == false);
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        ProjectionMap loadaProjectionMap = loada.getProjectionMap();
        assertTrue(loadaProjectionMap.changes() == false);
       
        LOLoad loadb = (LOLoad) lp.getRoots().get(1);
        ProjectionMap loadbProjectionMap = loadb.getProjectionMap();
        assertTrue(loadbProjectionMap.changes() == false);

        //check cogroup projection map
        LOCogroup cogroup = (LOCogroup)lp.getSuccessors(loada).get(0);
        ProjectionMap cogroupProjectionMap = cogroup.getProjectionMap();
        assertTrue(cogroupProjectionMap.changes() == true);
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        assertTrue(loadbProjectionMap.changes() == false);

        //check cogroup projection map
        LOCogroup cogroup = (LOCogroup)lp.getSuccessors(loada).get(0);
        ProjectionMap cogroupProjectionMap = cogroup.getProjectionMap();
        assertTrue(cogroupProjectionMap.changes() == true);
       
        MultiMap<Integer, ProjectionMap.Column> cogroupMapFields = cogroupProjectionMap.getMappedFields();
        assertTrue(cogroupMapFields != null);
       
        List<ProjectionMap.Column> cogroupMapValues = (ArrayList<ProjectionMap.Column>)cogroupMapFields.get(0);
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        assertTrue(cogroupAddedFields.get(1) == 2);
       
        //check that the foreach projection map has null mappedFields
        LOForEach foreach = (LOForEach)lp.getLeaves().get(0);
        ProjectionMap foreachProjectionMap = foreach.getProjectionMap();
        assertTrue(foreachProjectionMap.changes() == true);
       
        MultiMap<Integer, ProjectionMap.Column> foreachMapFields = foreachProjectionMap.getMappedFields();
        assertTrue(foreachMapFields != null);
       
        List<ProjectionMap.Column> foreachMapValues = (ArrayList<ProjectionMap.Column>)foreachMapFields.get(0);
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        lp = planTester.buildPlan("e = foreach d generate group, a::url, b::url, b::rank, rank;");
       
        foreach = (LOForEach)lp.getLeaves().get(0);
        foreachProjectionMap = foreach.getProjectionMap();
        assertTrue(foreachProjectionMap.changes() == true);
       
        foreachMapFields = foreachProjectionMap.getMappedFields();
        assertTrue(foreachMapFields != null);
       
        foreachMapValues = (ArrayList<ProjectionMap.Column>)foreachMapFields.get(0);
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        LogicalPlan lp = planTester.buildPlan(query);

        //check that the loads' projection map is null
        LOLoad loada = (LOLoad) lp.getRoots().get(0);
        ProjectionMap loadaProjectionMap = loada.getProjectionMap();
        assertTrue(loadaProjectionMap.changes() == false);
       
        LOLoad loadb = (LOLoad) lp.getRoots().get(1);
        ProjectionMap loadbProjectionMap = loadb.getProjectionMap();
        assertTrue(loadbProjectionMap.changes() == false);
       
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        ProjectionMap loadaProjectionMap = loada.getProjectionMap();
        assertTrue(loadaProjectionMap.changes() == false);
       
        LOLoad loadb = (LOLoad) lp.getRoots().get(1);
        ProjectionMap loadbProjectionMap = loadb.getProjectionMap();
        assertTrue(loadbProjectionMap.changes() == false);
       
        //check cross projection map
        LOCross cross = (LOCross)lp.getSuccessors(loada).get(0);
        ProjectionMap crossProjectionMap = cross.getProjectionMap();
        assertTrue(crossProjectionMap != null);
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        LogicalPlan lp = planTester.buildPlan(query);

        //check that the loads' projection map is null
        LOLoad loada = (LOLoad) lp.getRoots().get(0);
        ProjectionMap loadaProjectionMap = loada.getProjectionMap();
        assertTrue(loadaProjectionMap.changes() == false);
       
        LOLoad loadb = (LOLoad) lp.getRoots().get(1);
        ProjectionMap loadbProjectionMap = loadb.getProjectionMap();
        assertTrue(loadbProjectionMap.changes() == false);
       
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        ProjectionMap loadaProjectionMap = loada.getProjectionMap();
        assertTrue(loadaProjectionMap.changes() == false);
       
        LOLoad loadb = (LOLoad) lp.getRoots().get(1);
        ProjectionMap loadbProjectionMap = loadb.getProjectionMap();
        assertTrue(loadbProjectionMap.changes() == false);
       
        //check union projection map
        LOUnion union = (LOUnion)lp.getSuccessors(loada).get(0);
        ProjectionMap unionProjectionMap = union.getProjectionMap();
        assertTrue(unionProjectionMap != null);
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