Package io.crate.planner.projection

Examples of io.crate.planner.projection.GroupProjection.keys()

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        mergeNode.contextId(UUID.randomUUID());
        mergeNode.executionNodes(nodes);
        mergeNode.inputTypes(Arrays.<DataType>asList(DataTypes.UNDEFINED, DataTypes.STRING));

        GroupProjection groupProjection = new GroupProjection();
        groupProjection.keys(Arrays.<DataTypeSymbol>asList(new InputColumn(1, DataTypes.STRING)));
        groupProjection.values(Arrays.asList(
                new Aggregation(
                        countAggregation.info(),
                        ImmutableList.<Symbol>of(new InputColumn(0)),
                        Aggregation.Step.PARTIAL,
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        node.executionNodes(Sets.newHashSet("node1", "node2"));
        node.inputTypes(Arrays.<DataType>asList(DataTypes.UNDEFINED, DataTypes.STRING));

        Reference nameRef = TestingHelpers.createReference("name", DataTypes.STRING);
        GroupProjection groupProjection = new GroupProjection();
        groupProjection.keys(Arrays.<DataTypeSymbol>asList(nameRef));
        groupProjection.values(Arrays.asList(
                new Aggregation(
                        new FunctionInfo(new FunctionIdent(CountAggregation.NAME, ImmutableList.<DataType>of()), DataTypes.LONG),
                        ImmutableList.<Symbol>of(),
                        Aggregation.Step.PARTIAL,
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    @Test
    public void testGroupProjector() throws ExecutionException, InterruptedException {
        //         in(0)  in(1)      in(0),      in(2)
        // select  race, avg(age), count(race), gender  ... group by race, gender
        GroupProjection projection = new GroupProjection();
        projection.keys(Arrays.<DataTypeSymbol>asList(new InputColumn(0, DataTypes.STRING), new InputColumn(2, DataTypes.STRING)));
        projection.values(Arrays.asList(
                new Aggregation(avgInfo, Arrays.<Symbol>asList(new InputColumn(1)), Aggregation.Step.ITER, Aggregation.Step.FINAL),
                new Aggregation(countInfo, Arrays.<Symbol>asList(new InputColumn(0)), Aggregation.Step.ITER, Aggregation.Step.FINAL)
        ));
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