//                                                                         Aggregation
    //                                                                         ===========
    public BsRelatedContentCA aggregation() {
        assertAggregationPurpose();
        return doGetConditionAggregation();
    }

    //                                                                         Aggregation
    //                                                                         ===========
    public BsCrawlingInfoParamCA aggregation() {
        assertAggregationPurpose();
        return doGetConditionAggregation();
    }

        boolean aggregating = false;

        Set<Artifact> reactorArtifacts = new HashSet<>(3);
        for (MavenProject reactorProject : session.getProjects()) {
            reactorProject.setArtifactFilter(artifact -> true);
            resolver.resolveProjectDependencies(
                    reactorProject, scopesToCollect, scopesToResolve, session, aggregating, reactorArtifacts);

    private final List<Task> tasks;

    private final boolean aggregating;

    public TaskSegment(boolean aggregating) {
        this.aggregating = aggregating;
        tasks = new ArrayList<>();
    }

    public TaskSegment(boolean aggregating, Task... tasks) {
        this.aggregating = aggregating;
        this.tasks = new ArrayList<>(Arrays.asList(tasks));
    }

    @Override

    // ===================================================================================
    //                                                                         Aggregation
    //                                                                         ===========
    public BsRoleTypeCA aggregation() {
        assertAggregationPurpose();
        return doGetConditionAggregation();
    }

    protected BsRoleTypeCA doGetConditionAggregation() {

    // ===================================================================================
    //                                                                         Aggregation
    //                                                                         ===========
    public BsClickLogCA aggregation() {
        assertAggregationPurpose();
        return doGetConditionAggregation();
    }

    protected BsClickLogCA doGetConditionAggregation() {

    // ===================================================================================
    //                                                                         Aggregation
    //                                                                         ===========
    public BsWebConfigCA aggregation() {
        assertAggregationPurpose();
        return doGetConditionAggregation();
    }

    protected BsWebConfigCA doGetConditionAggregation() {

        private final Set<String> resolve;

        private boolean aggregating;

        private final int hashCode;

        public CacheKey(
                MavenProject project,
                List<RemoteRepository> repositories,
                Collection<String> scopesToCollect,
                Collection<String> scopesToResolve,
                boolean aggregating,
                RepositorySystemSession session) {

                boolean aggregating = mojoDescriptor.isAggregator() || !mojoDescriptor.isProjectRequired();

                if (currentSegment == null || currentSegment.isAggregating() != aggregating) {
                    currentSegment = new TaskSegment(aggregating);
                    taskSegments.add(currentSegment);
                }

}

// IsAggregated returns if the statement involves SQL aggregation
func (e *SelectStatement) IsAggregated() bool {
	return e.selectQProp.isAggregation
}

// AggregateResult - returns the aggregated result after all input
// records have been processed. Applies only to aggregation queries.
func (e *SelectStatement) AggregateResult(output Record) error {