@Override protected RelationPlan visitTable(Table node, Void context) { Query namedQuery = analysis.getNamedQuery(node); if (namedQuery != null) { RelationPlan subPlan = process(namedQuery, null); return new RelationPlan( subPlan.getRoot(), analysis.getOutputDescriptor(node), subPlan.getOutputSymbols(), subPlan.getSampleWeight()); } TupleDescriptor descriptor = analysis.getOutputDescriptor(node); TableHandle handle = analysis.getTableHandle(node); ImmutableList.Builder<Symbol> outputSymbolsBuilder = ImmutableList.builder(); ImmutableMap.Builder<Symbol, ColumnHandle> columns = ImmutableMap.builder(); for (Field field : descriptor.getAllFields()) { Symbol symbol = symbolAllocator.newSymbol(field.getName().get(), field.getType()); outputSymbolsBuilder.add(symbol); columns.put(symbol, analysis.getColumn(field)); } List<Symbol> planOutputSymbols = outputSymbolsBuilder.build(); Optional<ColumnHandle> sampleWeightColumn = metadata.getSampleWeightColumnHandle(session, handle); Symbol sampleWeightSymbol = null; if (sampleWeightColumn.isPresent()) { sampleWeightSymbol = symbolAllocator.newSymbol("$sampleWeight", BIGINT); outputSymbolsBuilder.add(sampleWeightSymbol); columns.put(sampleWeightSymbol, sampleWeightColumn.get()); } List<Symbol> nodeOutputSymbols = outputSymbolsBuilder.build(); PlanNode root = new TableScanNode( idAllocator.getNextId(), handle, nodeOutputSymbols, columns.build(), Optional.empty(), TupleDomain.all(), null); return new RelationPlan( root, descriptor, planOutputSymbols, Optional.ofNullable(sampleWeightSymbol)); }