Examples with TableExecuteContextManager io.trino.execution.TableExecuteContextManager used on opensource projects

Example 6 with TableExecuteContextManager

use of io.trino.execution.TableExecuteContextManager in project trino by trinodb.

the class LocalQueryRunner method createDrivers.

private List<Driver> createDrivers(Session session, Plan plan, OutputFactory outputFactory, TaskContext taskContext) {
    if (printPlan) {
        System.out.println(PlanPrinter.textLogicalPlan(plan.getRoot(), plan.getTypes(), plannerContext.getMetadata(), plannerContext.getFunctionManager(), plan.getStatsAndCosts(), session, 0, false));
    }
    SubPlan subplan = createSubPlans(session, plan, true);
    if (!subplan.getChildren().isEmpty()) {
        throw new AssertionError("Expected subplan to have no children");
    }
    TableExecuteContextManager tableExecuteContextManager = new TableExecuteContextManager();
    tableExecuteContextManager.registerTableExecuteContextForQuery(taskContext.getQueryContext().getQueryId());
    LocalExecutionPlanner executionPlanner = new LocalExecutionPlanner(plannerContext, new TypeAnalyzer(plannerContext, statementAnalyzerFactory), Optional.empty(), pageSourceManager, indexManager, nodePartitioningManager, pageSinkManager, null, expressionCompiler, pageFunctionCompiler, joinFilterFunctionCompiler, new IndexJoinLookupStats(), this.taskManagerConfig, spillerFactory, singleStreamSpillerFactory, partitioningSpillerFactory, new PagesIndex.TestingFactory(false), joinCompiler, operatorFactories, new OrderingCompiler(plannerContext.getTypeOperators()), new DynamicFilterConfig(), blockTypeOperators, tableExecuteContextManager, exchangeManagerRegistry);
    // plan query
    StageExecutionDescriptor stageExecutionDescriptor = subplan.getFragment().getStageExecutionDescriptor();
    LocalExecutionPlan localExecutionPlan = executionPlanner.plan(taskContext, stageExecutionDescriptor, subplan.getFragment().getRoot(), subplan.getFragment().getPartitioningScheme().getOutputLayout(), plan.getTypes(), subplan.getFragment().getPartitionedSources(), outputFactory);
    // generate splitAssignments
    List<SplitAssignment> splitAssignments = new ArrayList<>();
    long sequenceId = 0;
    for (TableScanNode tableScan : findTableScanNodes(subplan.getFragment().getRoot())) {
        TableHandle table = tableScan.getTable();
        SplitSource splitSource = splitManager.getSplits(session, table, stageExecutionDescriptor.isScanGroupedExecution(tableScan.getId()) ? GROUPED_SCHEDULING : UNGROUPED_SCHEDULING, EMPTY, alwaysTrue());
        ImmutableSet.Builder<ScheduledSplit> scheduledSplits = ImmutableSet.builder();
        while (!splitSource.isFinished()) {
            for (Split split : getNextBatch(splitSource)) {
                scheduledSplits.add(new ScheduledSplit(sequenceId++, tableScan.getId(), split));
            }
        }
        splitAssignments.add(new SplitAssignment(tableScan.getId(), scheduledSplits.build(), true));
    }
    // create drivers
    List<Driver> drivers = new ArrayList<>();
    Map<PlanNodeId, DriverFactory> driverFactoriesBySource = new HashMap<>();
    for (DriverFactory driverFactory : localExecutionPlan.getDriverFactories()) {
        for (int i = 0; i < driverFactory.getDriverInstances().orElse(1); i++) {
            if (driverFactory.getSourceId().isPresent()) {
                checkState(driverFactoriesBySource.put(driverFactory.getSourceId().get(), driverFactory) == null);
            } else {
                DriverContext driverContext = taskContext.addPipelineContext(driverFactory.getPipelineId(), driverFactory.isInputDriver(), driverFactory.isOutputDriver(), false).addDriverContext();
                Driver driver = driverFactory.createDriver(driverContext);
                drivers.add(driver);
            }
        }
    }
    // add split assignments to the drivers
    ImmutableSet<PlanNodeId> partitionedSources = ImmutableSet.copyOf(subplan.getFragment().getPartitionedSources());
    for (SplitAssignment splitAssignment : splitAssignments) {
        DriverFactory driverFactory = driverFactoriesBySource.get(splitAssignment.getPlanNodeId());
        checkState(driverFactory != null);
        boolean partitioned = partitionedSources.contains(driverFactory.getSourceId().get());
        for (ScheduledSplit split : splitAssignment.getSplits()) {
            DriverContext driverContext = taskContext.addPipelineContext(driverFactory.getPipelineId(), driverFactory.isInputDriver(), driverFactory.isOutputDriver(), partitioned).addDriverContext();
            Driver driver = driverFactory.createDriver(driverContext);
            driver.updateSplitAssignment(new SplitAssignment(split.getPlanNodeId(), ImmutableSet.of(split), true));
            drivers.add(driver);
        }
    }
    for (DriverFactory driverFactory : localExecutionPlan.getDriverFactories()) {
        driverFactory.noMoreDrivers();
    }
    return ImmutableList.copyOf(drivers);
}