public async Task <Result> QueryAsync(WorkerInput input)
{
var plan = input.Plan;
var underlyingResults = _underlying.ExecuteAsync(plan.UnderlyingQuery, input.DataLocation);
var orderedResults = ResultProcessor.Order(plan.Order, underlyingResults);
var limitedResults = ResultProcessor.Limit(plan.Limit, orderedResults);
// TODO do we need any worker side projection?
var results = limitedResults;
return(await _resultsStorer.StoreAsync(results).ConfigureAwait(false));
}
public async Task <Result> QueryAsync(DistributorInput input)
{
var plan = _planner.Plan(input.Query);
var sources = await _sourceResolver.ResolveAsync(input.Source).ConfigureAwait(false);
var workerResultSets = _workerExecutor.ExecuteAsync(plan.WorkerPlan, sources);
// TODO ordering+limit could be more efficient using the result sets directly (it might also be required for performance)
var workerFetchedResultSets = workerResultSets.Select(x => _resultsFetcher.FetchAsync(x));
var workerResults = workerFetchedResultSets.SelectMany(x => x);
var orderedResults = ResultProcessor.Order(plan.Order, workerResults);
var limitedResults = ResultProcessor.Limit(plan.Limit, orderedResults);
var results = ProjectResults(limitedResults);
return(await _resultsStorer.StoreAsync(results).ConfigureAwait(false));
}