private RelationPlan processAndCoerceIfNecessary(Relation node, Void context) { Type[] coerceToTypes = analysis.getRelationCoercion(node); RelationPlan plan = this.process(node, context); if (coerceToTypes == null) { return plan; } return addCoercions(plan, coerceToTypes); }
private RelationPlan processAndCoerceIfNecessary(Relation node, Void context) { Type[] coerceToTypes = analysis.getRelationCoercion(node); RelationPlan plan = this.process(node, context); if (coerceToTypes == null) { return plan; } return addCoercions(plan, coerceToTypes); }
@Override protected RelationPlan visitTable(Table node, Void context) { Query namedQuery = analysis.getNamedQuery(node); Scope scope = analysis.getScope(node); if (namedQuery != null) { RelationPlan subPlan = process(namedQuery, null); // Add implicit coercions if view query produces types that don't match the declared output types // of the view (e.g., if the underlying tables referenced by the view changed) Type[] types = scope.getRelationType().getAllFields().stream().map(Field::getType).toArray(Type[]::new); RelationPlan withCoercions = addCoercions(subPlan, types); return new RelationPlan(withCoercions.getRoot(), scope, withCoercions.getFieldMappings()); } TableHandle handle = analysis.getTableHandle(node); ImmutableList.Builder<Symbol> outputSymbolsBuilder = ImmutableList.builder(); ImmutableMap.Builder<Symbol, ColumnHandle> columns = ImmutableMap.builder(); for (Field field : scope.getRelationType().getAllFields()) { Symbol symbol = symbolAllocator.newSymbol(field.getName().get(), field.getType()); outputSymbolsBuilder.add(symbol); columns.put(symbol, analysis.getColumn(field)); } List<Symbol> outputSymbols = outputSymbolsBuilder.build(); PlanNode root = new TableScanNode(idAllocator.getNextId(), handle, outputSymbols, columns.build()); return new RelationPlan(root, scope, outputSymbols); }
@Override protected RelationPlan visitTable(Table node, Void context) { Query namedQuery = analysis.getNamedQuery(node); Scope scope = analysis.getScope(node); if (namedQuery != null) { RelationPlan subPlan = process(namedQuery, null); // Add implicit coercions if view query produces types that don't match the declared output types // of the view (e.g., if the underlying tables referenced by the view changed) Type[] types = scope.getRelationType().getAllFields().stream().map(Field::getType).toArray(Type[]::new); RelationPlan withCoercions = addCoercions(subPlan, types); return new RelationPlan(withCoercions.getRoot(), scope, withCoercions.getFieldMappings()); } TableHandle handle = analysis.getTableHandle(node); ImmutableList.Builder<Symbol> outputSymbolsBuilder = ImmutableList.builder(); ImmutableMap.Builder<Symbol, ColumnHandle> columns = ImmutableMap.builder(); for (Field field : scope.getRelationType().getAllFields()) { Symbol symbol = symbolAllocator.newSymbol(field.getName().get(), field.getType()); outputSymbolsBuilder.add(symbol); columns.put(symbol, analysis.getColumn(field)); } List<Symbol> outputSymbols = outputSymbolsBuilder.build(); PlanNode root = new TableScanNode(idAllocator.getNextId(), handle, outputSymbols, columns.build()); return new RelationPlan(root, scope, outputSymbols); }