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

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

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            Expression originalConstraint = null;
            if (node.getOriginalConstraint() != null) {
                originalConstraint = canonicalize(node.getOriginalConstraint());
            }
            return new TableScanNode(node.getId(), node.getTable(), canonicalize(node.getOutputSymbols()), builder.build(), originalConstraint, node.getGeneratedPartitions());
        }
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            outputSymbolsBuilder.add(sampleWeightSymbol);
            columns.put(sampleWeightSymbol, sampleWeightColumn.get());
        }

        List<Symbol> nodeOutputSymbols = outputSymbolsBuilder.build();
        PlanNode root = new TableScanNode(idAllocator.getNextId(), handle, nodeOutputSymbols, columns.build(), null, Optional.<GeneratedPartitions>absent());
        if (sampleWeightSymbol != null) {
            root = new MaterializeSampleNode(idAllocator.getNextId(), root, sampleWeightSymbol);
        }
        return new RelationPlan(root, descriptor, planOutputSymbols);
    }
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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(), null, Optional.<GeneratedPartitions>absent()), descriptor, outputSymbols);
    }
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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, null, Optional.<GeneratedPartitions>absent());

        return new RelationPlan(tableScan, new TupleDescriptor(), ImmutableList.<Symbol>of());
    }
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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(), null, Optional.<GeneratedPartitions>absent()), new TupleDescriptor(fields.build()), outputSymbols);

            targetColumnHandles = columnHandleBuilder.build();
        }
        else {
            RelationPlanner planner = new RelationPlanner(analysis, symbolAllocator, idAllocator, metadata, session);
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                Set<Symbol> requiredPartitionDomainSymbols = Maps.filterValues(node.getAssignments(), Predicates.in(node.getPartitionsDomainSummary().getDomains().keySet())).keySet();
                requiredAssignmentSymbols = Sets.union(requiredTableScanOutputs, requiredPartitionDomainSymbols);
            }
            Map<Symbol, ColumnHandle> newAssignments = Maps.filterKeys(node.getAssignments(), in(requiredAssignmentSymbols));

            return new TableScanNode(node.getId(), node.getTable(), newOutputSymbols, newAssignments, node.getOriginalConstraint(), node.getGeneratedPartitions());
        }
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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();
        PlanNode node = new TableScanNode(idAllocator.getNextId(), table, ImmutableList.copyOf(assignments.keySet()), assignments, null, Optional.<GeneratedPartitions>absent());

        return new RelationPlan(node, new TupleDescriptor(), ImmutableList.<Symbol>of());
    }
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            Expression originalConstraint = null;
            if (node.getOriginalConstraint() != null) {
                originalConstraint = canonicalize(node.getOriginalConstraint());
            }
            return new TableScanNode(node.getId(), node.getTable(), canonicalize(node.getOutputSymbols()), builder.build(), originalConstraint, node.getGeneratedPartitions());
        }
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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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Related Classes of com.facebook.presto.sql.planner.plan.TableScanNode

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  • com.facebook.presto.sql.planner.optimizations.CanonicalizeExpressions$Rewriter
  • com.facebook.presto.sql.planner.optimizations.PredicatePushDown$Rewriter
  • com.facebook.presto.sql.planner.optimizations.PruneUnreferencedOutputs$Rewriter
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