public TranslationMap copyTranslations() { TranslationMap translations = new TranslationMap(getRelationPlan(), getAnalysis(), getTranslations().getLambdaDeclarationToSymbolMap()); translations.copyMappingsFrom(getTranslations()); return translations; }
TranslationMap argumentTranslations = new TranslationMap(subPlan.getRelationPlan(), analysis, lambdaDeclarationToSymbolMap); TranslationMap groupingTranslations = new TranslationMap(subPlan.getRelationPlan(), analysis, lambdaDeclarationToSymbolMap); Map<Symbol, Symbol> groupingSetMappings = new LinkedHashMap<>(); TranslationMap aggregationTranslations = new TranslationMap(subPlan.getRelationPlan(), analysis, lambdaDeclarationToSymbolMap); aggregationTranslations.copyMappingsFrom(groupingTranslations);
public TranslationMap copyTranslations() { TranslationMap translations = new TranslationMap(getRelationPlan(), getAnalysis(), getTranslations().getLambdaDeclarationToSymbolMap()); translations.copyMappingsFrom(getTranslations()); return translations; }
TranslationMap argumentTranslations = new TranslationMap(subPlan.getRelationPlan(), analysis, lambdaDeclarationToSymbolMap); TranslationMap groupingTranslations = new TranslationMap(subPlan.getRelationPlan(), analysis, lambdaDeclarationToSymbolMap); Map<Symbol, Symbol> groupingSetMappings = new LinkedHashMap<>(); TranslationMap aggregationTranslations = new TranslationMap(subPlan.getRelationPlan(), analysis, lambdaDeclarationToSymbolMap); aggregationTranslations.copyMappingsFrom(groupingTranslations);
public RelationPlan plan(QuerySpecification node) RelationPlan fromRelationPlan = builder.getRelationPlan();
public RelationPlan plan(QuerySpecification node) RelationPlan fromRelationPlan = builder.getRelationPlan();
private PlanBuilder project(PlanBuilder subPlan, Iterable<Expression> expressions) { TranslationMap outputTranslations = new TranslationMap(subPlan.getRelationPlan(), analysis, lambdaDeclarationToSymbolMap); Assignments.Builder projections = Assignments.builder(); for (Expression expression : expressions) { if (expression instanceof SymbolReference) { Symbol symbol = Symbol.from(expression); projections.put(symbol, expression); outputTranslations.put(expression, symbol); continue; } Symbol symbol = symbolAllocator.newSymbol(expression, analysis.getTypeWithCoercions(expression)); projections.put(symbol, subPlan.rewrite(expression)); outputTranslations.put(expression, symbol); } return new PlanBuilder(outputTranslations, new ProjectNode( idAllocator.getNextId(), subPlan.getRoot(), projections.build()), analysis.getParameters()); }
private PlanBuilder project(PlanBuilder subPlan, Iterable<Expression> expressions) { TranslationMap outputTranslations = new TranslationMap(subPlan.getRelationPlan(), analysis, lambdaDeclarationToSymbolMap); Assignments.Builder projections = Assignments.builder(); for (Expression expression : expressions) { if (expression instanceof SymbolReference) { Symbol symbol = Symbol.from(expression); projections.put(symbol, expression); outputTranslations.put(expression, symbol); continue; } Symbol symbol = symbolAllocator.newSymbol(expression, analysis.getTypeWithCoercions(expression)); projections.put(symbol, subPlan.rewrite(expression)); outputTranslations.put(expression, symbol); } return new PlanBuilder(outputTranslations, new ProjectNode( idAllocator.getNextId(), subPlan.getRoot(), projections.build()), analysis.getParameters()); }
private PlanBuilder explicitCoercionFields(PlanBuilder subPlan, Iterable<Expression> alreadyCoerced, Iterable<? extends Expression> uncoerced) { TranslationMap translations = new TranslationMap(subPlan.getRelationPlan(), analysis, lambdaDeclarationToSymbolMap); Assignments.Builder projections = Assignments.builder(); projections.putAll(coerce(uncoerced, subPlan, translations)); for (Expression expression : alreadyCoerced) { if (expression instanceof SymbolReference) { // If this is an identity projection, no need to rewrite it // This is needed because certain synthetic identity expressions such as "group id" introduced when planning GROUPING // don't have a corresponding analysis, so the code below doesn't work for them projections.put(Symbol.from(expression), expression); continue; } Symbol symbol = symbolAllocator.newSymbol(expression, analysis.getType(expression)); Expression rewritten = subPlan.rewrite(expression); projections.put(symbol, rewritten); translations.put(expression, symbol); } return new PlanBuilder(translations, new ProjectNode( idAllocator.getNextId(), subPlan.getRoot(), projections.build()), analysis.getParameters()); }
private PlanBuilder explicitCoercionFields(PlanBuilder subPlan, Iterable<Expression> alreadyCoerced, Iterable<? extends Expression> uncoerced) { TranslationMap translations = new TranslationMap(subPlan.getRelationPlan(), analysis, lambdaDeclarationToSymbolMap); Assignments.Builder projections = Assignments.builder(); projections.putAll(coerce(uncoerced, subPlan, translations)); for (Expression expression : alreadyCoerced) { if (expression instanceof SymbolReference) { // If this is an identity projection, no need to rewrite it // This is needed because certain synthetic identity expressions such as "group id" introduced when planning GROUPING // don't have a corresponding analysis, so the code below doesn't work for them projections.put(Symbol.from(expression), expression); continue; } Symbol symbol = symbolAllocator.newSymbol(expression, analysis.getType(expression)); Expression rewritten = subPlan.rewrite(expression); projections.put(symbol, rewritten); translations.put(expression, symbol); } return new PlanBuilder(translations, new ProjectNode( idAllocator.getNextId(), subPlan.getRoot(), projections.build()), analysis.getParameters()); }