Examples of com.facebook.presto.sql.planner.plan.TableScanNode

Package com.facebook.presto.sql.planner.plan

Examples of com.facebook.presto.sql.planner.plan.TableScanNode

com.facebook.presto.sql.planner.plan.TableScanNode

        Split split = new DualSplit(HostAddress.fromString("127.0.0.1"));
        PlanNodeId tableScanNodeId = new PlanNodeId(planId);
        PlanFragment testFragment = new PlanFragment(new PlanFragmentId(planId),
                tableScanNodeId,
                ImmutableMap.<Symbol, Type>of(symbol, Type.VARCHAR),
                new TableScanNode(tableScanNodeId,
                        tableHandle, ImmutableList.of(symbol),
                        ImmutableMap.of(symbol, columnHandle),
                        BooleanLiteral.TRUE_LITERAL,
                        BooleanLiteral.TRUE_LITERAL));
        DataSource dataSource = new DataSource(null, ImmutableList.copyOf(Collections.nCopies(splitCount, split)));

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        tableScanNodeId = new PlanNodeId("tableScan");
        testFragment = new PlanFragment(new PlanFragmentId("fragment"),
                tableScanNodeId,
                ImmutableMap.<Symbol, Type>of(symbol, Type.VARCHAR),
                new TableScanNode(tableScanNodeId, tableHandle, ImmutableList.of(symbol), ImmutableMap.of(symbol, columnHandle), TRUE_LITERAL, TRUE_LITERAL));


        taskId = new TaskId("query", "stage", "task");
        session = new Session("user", "test", "default", "default", "test", "test");
    }

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        // generate sources
        List<TaskSource> sources = new ArrayList<>();
        long sequenceId = 0;
        for (PlanNode sourceNode : subplan.getFragment().getSources()) {
            TableScanNode tableScan = (TableScanNode) sourceNode;


            DataSource dataSource = splitManager.getSplits(session,
                    tableScan.getTable(),
                    tableScan.getPartitionPredicate(),
                    tableScan.getUpstreamPredicateHint(),
                    Predicates.<Partition>alwaysTrue(),
                    tableScan.getAssignments());


            ImmutableSet.Builder<ScheduledSplit> scheduledSplits = ImmutableSet.builder();
            for (Split split : dataSource.getSplits()) {
                scheduledSplits.add(new ScheduledSplit(sequenceId++, split));
            }


            sources.add(new TaskSource(tableScan.getId(), scheduledSplits.build(), true));
        }


        // create drivers
        List<Driver> drivers = new ArrayList<>();
        Map<PlanNodeId, Driver> driversBySource = new HashMap<>();

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        Symbol symbol = new Symbol("column");
        PlanNodeId tableScanNodeId = new PlanNodeId("test");
        PlanNodeId sourceId = new PlanNodeId("sourceId");
        PlanFragment testFragment = new PlanFragment(
                new PlanFragmentId("test"),
                new TableScanNode(
                        new PlanNodeId("test"),
                        new TableHandle("test", new TestingTableHandle()),
                        ImmutableList.of(symbol),
                        ImmutableMap.of(symbol, new ColumnHandle("test", new TestingColumnHandle("column"))),
                        null,

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        // table scan with splitCount splits
        PlanNodeId tableScanNodeId = new PlanNodeId(planId);
        PlanFragment testFragment = new PlanFragment(
                new PlanFragmentId(planId),
                new TableScanNode(
                        tableScanNodeId,
                        new TableHandle("test", new TestingTableHandle()),
                        ImmutableList.of(symbol),
                        ImmutableMap.of(symbol, new ColumnHandle("test", new TestingColumnHandle("column"))),
                        null,

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            PlanNode output = node;
            if (!node.getGeneratedPartitions().equals(Optional.of(generatedPartitions))) {
                // Only overwrite the originalConstraint if it was previously null
                Expression originalConstraint = node.getOriginalConstraint() == null ? inheritedPredicate : node.getOriginalConstraint();
                output = new TableScanNode(node.getId(), node.getTable(), node.getOutputSymbols(), node.getAssignments(), originalConstraint, Optional.of(generatedPartitions));
            }
            if (!postScanPredicate.equals(BooleanLiteral.TRUE_LITERAL)) {
                output = new FilterNode(idAllocator.getNextId(), output, postScanPredicate);
            }
            return output;

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            Map<Symbol, Input> sourceLayout;
            Map<Input, Type> sourceTypes;
            List<ColumnHandle> columns = null;
            PhysicalOperation source = null;
            if (sourceNode instanceof TableScanNode) {
                TableScanNode tableScanNode = (TableScanNode) sourceNode;


                // extract the column handles and input to type mapping
                sourceLayout = new LinkedHashMap<>();
                sourceTypes = new LinkedHashMap<>();
                columns = new ArrayList<>();
                int channel = 0;
                for (Symbol symbol : tableScanNode.getOutputSymbols()) {
                    columns.add(tableScanNode.getAssignments().get(symbol));


                    Input input = new Input(channel);
                    sourceLayout.put(symbol, input);


                    Type type = checkNotNull(context.getTypes().get(symbol), "No type for symbol %s", symbol);

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            outputSymbolsBuilder.add(symbol);
            columns.put(symbol, analysis.getColumn(field));
        }


        ImmutableList<Symbol> outputSymbols = outputSymbolsBuilder.build();
        return new RelationPlan(new TableScanNode(idAllocator.getNextId(), handle, outputSymbols, columns.build(), TRUE_LITERAL, TRUE_LITERAL), descriptor, outputSymbols);
    }

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                columnHandleBuilder.add(targetColumnHandle);
                outputSymbolsBuilder.add(symbol);
            }


            ImmutableList<Symbol> outputSymbols = outputSymbolsBuilder.build();
            plan = new RelationPlan(new TableScanNode(idAllocator.getNextId(), sourceTableHandle, outputSymbols, inputColumnsBuilder.build(), TRUE_LITERAL, TRUE_LITERAL), new TupleDescriptor(fields.build()), outputSymbols);


            targetColumnHandles = columnHandleBuilder.build();
        }
        else {
            RelationPlanner planner = new RelationPlanner(analysis, symbolAllocator, idAllocator, metadata, session);

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            Symbol symbol = symbolAllocator.newSymbol(column.getName(), Type.fromRaw(column.getType()));
            columns.put(symbol, columnHandles.get(column.getName()));
        }


        ImmutableMap<Symbol, ColumnHandle> assignments = columns.build();
        TableScanNode tableScan = new TableScanNode(idAllocator.getNextId(), table, ImmutableList.copyOf(assignments.keySet()), assignments, TRUE_LITERAL, TRUE_LITERAL);


        return new RelationPlan(tableScan, new TupleDescriptor(), ImmutableList.<Symbol>of());
    }

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