Crate oxirs_arq 

OxiRS ARQ - SPARQL Query Engine

Status: Production Release (v0.1.0) Stability: Public APIs are stable. Production-ready with comprehensive testing.

Advanced SPARQL 1.1/1.2 query engine with optimization, federation support, and custom functions. Provides Jena ARQ-style SPARQL algebra with modern Rust performance.

Features

• SPARQL 1.1 Query - Complete SPARQL 1.1 query support
• Query Optimization - Cost-based optimization and join reordering
• Parallel Execution - Multi-threaded query processing
• Custom Functions - Extensible function framework
• Federation Support - Basic federated query capabilities
• Result Streaming - Memory-efficient result iteration

Quick Start

use oxirs_core::query::QueryEngine;
use oxirs_core::RdfStore;

let engine = QueryEngine::new();
let store = RdfStore::new()?;

let sparql = "SELECT ?s ?p ?o WHERE { ?s ?p ?o } LIMIT 10";
let results = engine.query(sparql, &store)?;

See Also

• oxirs-core - RDF data model
• oxirs-fuseki - SPARQL HTTP server

Re-exports

pub use execution::ParallelBgpEvaluator;

pub use execution::PatternDependencyGraph;

pub use execution::TripleStore;

pub use optimizer::adaptive::AdaptiveJoinOrderOptimizer;

pub use optimizer::adaptive::AdaptiveStatsStore;

pub use optimizer::adaptive::JoinAlgorithm;

pub use optimizer::adaptive::JoinPlanNode;

pub use optimizer::adaptive::PatternTerm;

pub use optimizer::adaptive::PlanTimer;

pub use optimizer::adaptive::RuntimeStats;

pub use optimizer::adaptive::TriplePatternInfo;

pub use optimizer::materialized_view::BindingRow;

pub use optimizer::materialized_view::MaterializedView;

pub use optimizer::materialized_view::MaterializedViewManager;

pub use optimizer::materialized_view::RdfTerm;

pub use optimizer::materialized_view::ViewManagerConfig;

pub use optimizer::materialized_view::ViewManagerStats;

pub use optimizer::join_order::AdaptiveQueryPlan;

pub use optimizer::join_order::CardinalityEstimate;

pub use optimizer::join_order::JoinGraphStats;

pub use optimizer::join_order::JoinOrderOptimizer;

pub use optimizer::join_order::PatternCost;

pub use optimizer::view_registry::algebra_hash;

pub use optimizer::view_registry::BindingSet;

pub use optimizer::view_registry::ViewDefinition;

pub use optimizer::view_registry::ViewRegistry;

pub use executor_pipeline::BindingMap;

pub use executor_pipeline::ParallelPipelineStage;

pub use executor_pipeline::UnionParallelExecutor;

pub use query_cache_lru::CacheEntry;

pub use query_cache_lru::CacheFingerprint;

pub use query_cache_lru::CacheManagerStats;

pub use query_cache_lru::CompiledQueryCache;

pub use query_cache_lru::LruQueryCache;

pub use query_cache_lru::QueryCacheManager;

pub use aggregates_ext::Accumulator;

pub use aggregates_ext::AggregateFactory;

pub use aggregates_ext::AggregateMetadata;

pub use aggregates_ext::AggregateOptimization;

pub use aggregates_ext::AggregateRegistry;

pub use aggregates_ext::MemoryUsage;

pub use algebra::Aggregate;

pub use algebra::Algebra;

pub use algebra::BinaryOperator;

pub use algebra::Binding;

pub use algebra::Expression;

pub use algebra::GroupCondition;

pub use algebra::Iri;

pub use algebra::Literal;

pub use algebra::OrderCondition;

pub use algebra::Solution;

pub use algebra::Term;

pub use algebra::TriplePattern;

pub use algebra::UnaryOperator;

pub use debug_utilities::DebugBreakpoint;

pub use debug_utilities::DebugConfig;

pub use debug_utilities::DebugReport;

pub use debug_utilities::ExecutionState as DebugExecutionState;

pub use debug_utilities::JoinType;

pub use debug_utilities::Operation;

pub use debug_utilities::QueryDebugger;

pub use debug_utilities::RewriteStep;

pub use debug_utilities::TraceEntry;

pub use debug_utilities::VariableBinding;

pub use debug_utilities::VisualizationFormat;

pub use executor::Dataset;

pub use executor::ExecutionContext;

pub use executor::InMemoryDataset;

pub use executor::ParallelConfig;

pub use executor::QueryExecutor;

pub use graphql_translator::GraphQLDirective;

pub use graphql_translator::GraphQLDocument;

pub use graphql_translator::GraphQLField;

pub use graphql_translator::GraphQLFragment;

pub use graphql_translator::GraphQLOperation;

pub use graphql_translator::GraphQLOperationType;

pub use graphql_translator::GraphQLSelection;

pub use graphql_translator::GraphQLTranslator;

pub use graphql_translator::GraphQLValue;

pub use graphql_translator::GraphQLVariableDefinition;

pub use graphql_translator::SchemaMapping;

pub use graphql_translator::TranslationError;

pub use graphql_translator::TranslationResult;

pub use graphql_translator::TranslationStats;

pub use graphql_translator::TranslatorConfig;

pub use jit_compiler::CompiledQuery;

pub use jit_compiler::CompilerStats;

pub use jit_compiler::ExecutionPlan;

pub use jit_compiler::ExecutionStats;

pub use jit_compiler::FilterType;

pub use jit_compiler::JitCompilerConfig;

pub use jit_compiler::JitJoinStrategy;

pub use jit_compiler::PatternType;

pub use jit_compiler::PlanOperation;

pub use jit_compiler::QueryJitCompiler;

pub use jit_compiler::QueryMetadata;

pub use jit_compiler::Specialization;

pub use jit_compiler::SpecializationType;

pub use path_extensions::BidirectionalPathSearch;

pub use path_extensions::CacheStats;

pub use path_extensions::CachedPathEvaluator;

pub use path_extensions::CostBasedPathOptimizer;

pub use path_extensions::PathAnalyzer;

pub use path_extensions::PathCache;

pub use path_extensions::PathComplexity;

pub use path_extensions::PathEvaluationStrategy;

pub use path_extensions::PathOptimizationConfig;

pub use path_extensions::PathOptimizationHint;

pub use path_extensions::PathStatistics;

pub use path_extensions::ReachabilityIndex;

pub use path_extensions::StrategyCostEstimate;

pub use procedures::Procedure;

pub use procedures::ProcedureArgs;

pub use procedures::ProcedureContext;

pub use procedures::ProcedureFactory;

pub use procedures::ProcedureRegistry;

pub use procedures::ProcedureResult;

pub use property_functions::PropFuncArg;

pub use property_functions::PropertyFunction;

pub use property_functions::PropertyFunctionContext;

pub use property_functions::PropertyFunctionRegistry;

pub use property_functions::PropertyFunctionResult;

pub use query_builder::AskBuilder;

pub use query_builder::ConstructBuilder;

pub use query_builder::DescribeBuilder;

pub use query_builder::SelectBuilder;

pub use query_plan_cache::CacheStats as QueryPlanCacheStats;

pub use query_plan_cache::CachedPlan;

pub use query_plan_cache::CachingConfig;

pub use query_plan_cache::QueryPlanCache;

pub use query_plan_cache::QuerySignature;

pub use query_plan_cache::StatisticsSnapshot;

pub use query_profiler::AverageStats;

pub use query_profiler::QueryPhase;

pub use query_profiler::QueryProfiler;

pub use query_profiler::QueryStats;

pub use query_validator::QueryValidator;

pub use query_validator::ValidationConfig;

pub use query_validator::ValidationResult;

pub use query_validator::ValidationStatistics;

pub use query_validator::ValidationWarning;

pub use query_validator::ValidationWarningType;

pub use result_formats::BinaryResultSerializer;

pub use result_formats::CustomFormatSerializer;

pub use result_formats::FormatConverter;

pub use result_formats::FormatRegistry;

pub use result_formats::StreamingResultIterator;

pub use result_formats::XmlResultSerializer;

pub use results::QueryResult;

pub use results::ResultFormat;

pub use results::ResultSerializer;

pub use scirs_optimize_integration::OptimizationResult;

pub use scirs_optimize_integration::PerformanceAnalysis;

pub use scirs_optimize_integration::QueryInfo;

pub use scirs_optimize_integration::QueryOptimizationConfig;

pub use scirs_optimize_integration::SciRS2QueryOptimizer;

pub use service_description::create_default_service_description;

pub use service_description::AggregateInfo;

pub use service_description::DatasetDescription;

pub use service_description::ExtensionFunction;

pub use service_description::Feature;

pub use service_description::LanguageExtension;

pub use service_description::NamedGraphDescription;

pub use service_description::ParameterInfo;

pub use service_description::ProcedureInfo;

pub use service_description::PropertyFunctionInfo;

pub use service_description::ServiceDescription;

pub use service_description::ServiceDescriptionBuilder;

pub use service_description::ServiceDescriptionRegistry;

pub use service_description::ServiceLimitations;

pub use string_functions_ext::StrAfterFunction;

pub use string_functions_ext::StrBeforeFunction;

pub use string_functions_ext::StrDtFunction;

pub use string_functions_ext::StrLangDirFunction;

pub use string_functions_ext::StrLangFunction;

pub use triple_functions::IsTripleFunction;

pub use triple_functions::ObjectFunction;

pub use triple_functions::PredicateFunction;

pub use triple_functions::SubjectFunction;

pub use triple_functions::TripleFunction;

pub use values_support::IndexedValues;

pub use values_support::JoinStrategy;

pub use values_support::OptimizedValues;

pub use values_support::ValuesBuilder;

pub use values_support::ValuesClause;

pub use values_support::ValuesExecutionStrategy;

pub use values_support::ValuesExecutor;

pub use values_support::ValuesJoinOptimizer;

pub use values_support::ValuesOptimizer;

pub use values_support::ValuesStatistics;

pub use lateral_join::LateralCostEstimate;

pub use lateral_join::LateralJoin;

pub use lateral_join::LateralJoinConfig;

pub use lateral_join::LateralJoinError;

pub use lateral_join::LateralJoinExecutor;

pub use lateral_join::LateralJoinStats;

pub use lateral_join::LateralOptimizer;

pub use lateral_join::LateralOptimizerConfig;

pub use lateral_join::LateralParser;

pub use lateral_join::LateralStrategy;

pub use lateral_join::LateralSubquery;

pub use lateral_join::LateralValidationResult;

pub use lateral_join::LateralValidator;

pub use lateral_join::LateralValue;

pub use lateral_join::OrderSpec;

pub use lateral_join::SolutionMapping;

pub use adaptive_index_advisor::AccessPattern;

pub use adaptive_index_advisor::AdvisorConfig;

pub use adaptive_index_advisor::AdvisorStatistics;

pub use adaptive_index_advisor::AnalysisSummary;

pub use adaptive_index_advisor::IndexAdvisor;

pub use adaptive_index_advisor::IndexAnalysisReport;

pub use adaptive_index_advisor::IndexConfiguration;

pub use adaptive_index_advisor::IndexRecommendation;

pub use adaptive_index_advisor::IndexType;

pub use adaptive_index_advisor::IndexUsageStats;

pub use adaptive_index_advisor::PatternComponent;

pub use adaptive_index_advisor::QueryPattern;

pub use adaptive_index_advisor::RecommendationPriority;

pub use cost_model_calibration::CalibrationConfig;

pub use cost_model_calibration::CalibrationExport;

pub use cost_model_calibration::CalibrationReport;

pub use cost_model_calibration::CalibratorStatistics;

pub use cost_model_calibration::CostModelCalibrator;

pub use cost_model_calibration::CostModelParameters;

pub use cost_model_calibration::ExecutionSample;

pub use cost_model_calibration::OperationCalibrationExport;

pub use cost_model_calibration::OperationCalibrationStats;

pub use cost_model_calibration::OperationSummary;

pub use cost_model_calibration::OperationType;

pub use federation::EndpointCapabilities;

pub use federation::EndpointCriteria;

pub use federation::EndpointDiscovery;

pub use federation::EndpointHealth;

pub use federation::FederatedSubquery;

pub use federation::FederationConfig;

pub use federation::FederationExecutor;

pub use federation::FederationStats;

pub use federation::LoadBalancingStrategy;

pub use gpu_accelerated_ops::DeviceSelection;

pub use gpu_accelerated_ops::GpuConfig;

pub use gpu_accelerated_ops::GpuOperationStats;

pub use gpu_accelerated_ops::GpuQueryEngine;

pub use interactive_query_builder::helpers as query_helpers;

pub use interactive_query_builder::InteractiveQueryBuilder;

pub use interactive_query_builder::PatternBuilder;

pub use interactive_query_builder::QueryType;

pub use materialization::MaterializationAnalysis;

pub use materialization::MaterializationConfig;

pub use materialization::MaterializationSelector;

pub use materialization::MaterializationStats;

pub use materialization::MaterializationStrategy;

pub use materialization::MaterializedResults;

pub use materialization::ResultIterator;

pub use materialization::VariableStats;

pub use production::AuditEventType;

pub use production::BaselineTrackerConfig;

pub use production::CostEstimatorConfig;

pub use production::CostEstimatorStatistics;

pub use production::CostRecommendation;

pub use production::ErrorSeverity;

pub use production::GlobalStatistics;

pub use production::HealthStatus;

pub use production::MemoryStats;

pub use production::PerformanceBaselineTracker;

pub use production::PerformanceTrend;

pub use production::PrioritizedQuery;

pub use production::PrioritySchedulerConfig;

pub use production::PrioritySchedulerStats;

pub use production::QueryAuditEvent;

pub use production::QueryAuditTrail;

pub use production::QueryCancellationToken;

pub use production::QueryCircuitBreaker;

pub use production::QueryCostEstimate;

pub use production::QueryCostEstimator;

pub use production::QueryEngineHealth;

pub use production::QueryErrorContext;

pub use production::QueryFeatures;

pub use production::QueryMemoryTracker;

pub use production::QueryPriority;

pub use production::QueryPriorityScheduler;

pub use production::QueryRateLimiter;

pub use production::QueryResourceQuota;

pub use production::QuerySession;

pub use production::QuerySessionManager;

pub use production::QueryStatistics;

pub use production::QueryTimeoutManager;

pub use production::QueryTimeoutState;

pub use production::RegressionReport;

pub use production::RegressionSeverity;

pub use production::SparqlPerformanceMonitor;

pub use production::SparqlProductionError;

pub use production::TimeoutAction;

pub use production::TimeoutCheckResult;

pub use query_execution_history::ExecutionMetrics;

pub use query_execution_history::ExecutionRecord;

pub use query_execution_history::ExecutionStatus;

pub use query_execution_history::FormDistribution;

pub use query_execution_history::HistoryAnalysis;

pub use query_execution_history::HistoryConfig;

pub use query_execution_history::HistoryStatistics;

pub use query_execution_history::PeriodStatistics;

pub use query_execution_history::QueryExecutionHistory;

pub use query_execution_history::QueryFormType;

pub use query_execution_history::QueryGroupStats;

pub use query_execution_history::SlowQueryEntry;

pub use query_fingerprinting::FingerprintConfig;

pub use query_fingerprinting::FingerprintingStatistics;

pub use query_fingerprinting::HashAlgorithm;

pub use query_fingerprinting::ParameterSlot;

pub use query_fingerprinting::ParameterType;

pub use query_fingerprinting::QueryFeatures as FingerprintQueryFeatures;

pub use query_fingerprinting::QueryFingerprint;

pub use query_fingerprinting::QueryFingerprinter;

pub use query_fingerprinting::QueryForm as FingerprintQueryForm;

pub use query_hints::CacheHint;

pub use query_hints::CardinalityHint;

pub use query_hints::FilterHint;

pub use query_hints::FilterPushdownDirective;

pub use query_hints::HintApplicationResult;

pub use query_hints::HintParser;

pub use query_hints::HintParserStats;

pub use query_hints::HintValidationWarning;

pub use query_hints::HintValidator;

pub use query_hints::IndexDirective;

pub use query_hints::IndexHint;

pub use query_hints::JoinAlgorithmHint;

pub use query_hints::JoinBuildSide;

pub use query_hints::JoinHint;

pub use query_hints::JoinOrderHint;

pub use query_hints::JoinOrderStrategy;

pub use query_hints::MaterializationHint;

pub use query_hints::MaterializationStrategy as HintMaterializationStrategy;

pub use query_hints::MemoryHint;

pub use query_hints::ParallelismHint;

pub use query_hints::QueryHints;

pub use query_hints::QueryHintsBuilder;

pub use query_hints::WarningSeverity;

pub use query_plan_export::CostEstimate;

pub use query_plan_export::ExecutionStats as PlanExecutionStats;

pub use query_plan_export::ExportConfig;

pub use query_plan_export::ExportError;

pub use query_plan_export::ExportFormat;

pub use query_plan_export::ExporterStats;

pub use query_plan_export::OperatorType;

pub use query_plan_export::PlanNode;

pub use query_plan_export::QueryPlanExporter;

pub use query_regression_testing::ExecutionResult as RegressionExecutionResult;

pub use query_regression_testing::ExecutionStatistics as RegressionExecutionStats;

pub use query_regression_testing::GoldenQuery;

pub use query_regression_testing::QueryRegressionAnalysis;

pub use query_regression_testing::RegressionConfig;

pub use query_regression_testing::RegressionReport as QueryRegressionReport;

pub use query_regression_testing::RegressionStatus;

pub use query_regression_testing::RegressionTestSuite;

pub use query_regression_testing::RegressionTestSuiteBuilder;

pub use query_regression_testing::ReportComparison;

pub use query_regression_testing::ReportSummary;

pub use query_regression_testing::SuiteExport;

pub use query_regression_testing::SuiteStatistics;

pub use query_result_cache::CacheConfig as ResultCacheConfig;

pub use query_result_cache::CacheStatistics as ResultCacheStatistics;

pub use query_result_cache::QueryResultCache;

pub use query_result_cache::QueryResultCacheBuilder;

pub use cache::CacheCoordinator;

pub use cache::CacheLevel;

pub use cache::DependencyGraph;

pub use cache::InvalidationConfig;

pub use cache::InvalidationEngine;

pub use cache::InvalidationStatistics;

pub use cache::InvalidationStrategy;

pub use cache::RdfUpdateListener;

pub use simd_query_ops::ComparisonOp;

pub use simd_query_ops::JoinStats;

pub use simd_query_ops::SimdAggregations;

pub use simd_query_ops::SimdConfig;

pub use simd_query_ops::SimdFilterEvaluator;

pub use simd_query_ops::SimdHashJoin;

pub use simd_query_ops::SimdStringOps;

pub use simd_query_ops::SimdTripleMatcher;

pub use simd_query_ops::TripleCandidate;

pub use websocket_streaming::ConnectionStats;

pub use websocket_streaming::ManagerStats;

pub use websocket_streaming::WebSocketConfig;

pub use websocket_streaming::WebSocketManager;

pub use websocket_streaming::WebSocketMessage;

pub use websocket_streaming::WebSocketSession;

pub use star_integration::pattern_matching;

pub use star_integration::sparql_star_functions;

pub use star_integration::star_statistics::SparqlStarStatistics;

pub use star_integration::SparqlStarExecutor;

pub use explain::ExplainFormat;

pub use explain::IndexType as ExplainIndexType;

pub use explain::PlanNode as ExplainPlanNode;

pub use explain::QueryExplainer;

pub use explain::QueryExplainerBuilder;

pub use explain::QueryPlan as QueryExplainPlan;

pub use rdf_star::bind_pattern;

pub use rdf_star::instantiate_quoted_triple;

pub use rdf_star::sparql_star_builtins;

pub use rdf_star::AnnotatedTriple;

pub use rdf_star::Annotation;

pub use rdf_star::QuotedTriple;

pub use rdf_star::RdfStarStore;

pub use rdf_star::StarBinding;

pub use rdf_star::StarObject;

pub use rdf_star::StarOperator;

pub use rdf_star::StarPattern;

pub use rdf_star::StarPredicate;

pub use rdf_star::StarSubject;

pub use analytics::is_dag;

pub use analytics::is_reachable;

pub use analytics::BetweennessCentrality;

pub use analytics::ConnectedComponents;

pub use analytics::DegreeCentrality;

pub use analytics::EdgeWeight;

pub use analytics::GraphStats;

pub use analytics::GraphStatsSummary;

pub use analytics::LouvainCommunities;

pub use analytics::NodeId;

pub use analytics::PageRank;

pub use analytics::RdfGraphAdapter;

pub use analytics::ShortestPaths;

pub use update_graph_management::GraphManagementDataset;

pub use update_graph_management::GraphManagementExecutor;

pub use update_graph_management::GraphManagementOp;

pub use update_graph_management::GraphManagementResult;

pub use update_graph_management::GraphManagementTarget;

pub use update_graph_management::Triple as GraphManagementTriple;

pub use stats::PatternStats;

pub use stats::QueryExecutionStats;

pub use stats::RuntimeStatsCollector;

pub use update_protocol::ArqError as UpdateArqError;

pub use update_protocol::ClearType;

pub use update_protocol::DropType;

pub use update_protocol::ParseError as UpdateParseError;

pub use update_protocol::PatternTerm as UpdatePatternTerm;

pub use update_protocol::SparqlUpdate;

pub use update_protocol::SparqlUpdateParser;

pub use update_protocol::Triple as UpdateTriple;

pub use update_protocol::TriplePattern as UpdateTriplePattern;

pub use update_protocol::UpdateExecutor as SparqlUpdateExecutor;

pub use update_protocol::UpdateResult as SparqlUpdateResult;

pub use optimizer::ConstantFoldingPass;

pub use optimizer::OptimizationPass;

pub use optimizer::OptimizationPipeline;

pub use optimizer::PipelineResult;

pub use optimizer::RedundantJoinEliminationPass;

pub use optimizer::UnusedVariableEliminationPass;

Modules

adaptive_execution

Adaptive Query Execution

adaptive_index_advisor

Adaptive Index Advisor

advanced_optimizer

Advanced Query Optimization Engine

aggregate_executor

SPARQL 1.1 Aggregate Function Executor

aggregates_ext

Extended Aggregate Functions for SPARQL

algebra

SPARQL Algebra Module

algebra_generation

Algebra Generation Module

analytics

Graph Analytics for RDF Knowledge Graphs

bgp_optimizer

Advanced BGP (Basic Graph Pattern) Optimization

bgp_optimizer_types

Type definitions for BGP optimization

buffer_management

Advanced Buffer Pool Management

builtin

Built-in SPARQL Functions

builtin_fixed

Built-in SPARQL Functions

cache

Intelligent Cache Invalidation System

cache_integration

Advanced Caching Integration for OxiRS ARQ Query Engine

cardinality_estimator

Advanced Cardinality Estimation for Query Optimization

construct_builder

cost_model

Cost Model Module

cost_model_calibration

Cost Model Calibration for Adaptive Query Optimization

debug_utilities

Debugging Utilities for SPARQL Queries

distributed

Distributed Query Processing Module

execution

Execution sub-modules for oxirs-arq

executor

Auto-generated module structure

executor_pipeline

Parallel Query Execution Pipeline

exists_evaluator

SPARQL EXISTS and NOT EXISTS evaluation.

explain

SPARQL Query Explain / Plan

expression

Expression Evaluation System for SPARQL

expression_compiler

SPARQL Expression Compiler and Evaluator with LRU Caching

expression_evaluator

extensions

Extension Framework for Custom Functions and Operators

federation

Federated SPARQL Query Execution

gpu_accelerated_ops

GPU-Accelerated SPARQL Operations

graphql_translator

group_by_evaluator

integrated_query_planner

Integrated Query Planner

interactive_query_builder

Interactive SPARQL Query Builder

jit_compiler

JIT Compilation for SPARQL Queries

join_algorithms

Advanced Join Algorithm Selection and Execution

join_optimizer

Cost-based join reordering for SPARQL query optimization.

lateral_join

SPARQL 1.2 LATERAL Join Support

materialization

Query Result Materialization Strategies

materialized_views

Materialized Views for Query Optimization

minus_evaluator

SPARQL MINUS pattern evaluation (set-difference algebra).

optimizer

Query Optimization Module

optional_evaluator

parallel

Parallel Query Execution Module

path

Property Path Support for SPARQL

path_expression

SPARQL 1.1 property path expression parser and evaluator.

path_extensions

Extended Property Path Support for SPARQL

plan_visualizer

SPARQL Query Plan Visualizer

procedures

Stored Procedures for SPARQL

production

Auto-generated module structure

property_functions

Property Functions (Magic Predicates) for SPARQL

query

Auto-generated module structure

query_analysis

Query Analysis Module

query_batch_executor

Smart Query Batch Executor

query_builder

Query Builder API for SPARQL

query_cache_lru

LRU Query Cache

query_execution_history

Query Execution History

query_fingerprinting

Advanced Query Fingerprinting for SPARQL Query Analysis

query_hints

Query Hints System for SPARQL Query Optimization

query_optimization_advisor

Automatic Query Optimization Advisor

query_pagination

Query Result Pagination

query_plan_cache

Query Plan Caching System

query_plan_diff

Query Plan Comparison and Diff Utilities

query_plan_export

Query Plan Export

query_profiler

SPARQL query profiling for performance analysis

query_regression_testing

Query Regression Testing Framework

query_result_cache

Query Result Caching with Fingerprint-Based Keys

query_rewriter

Advanced Query Rewriting

query_templates

SPARQL Query Template System

query_validator

Comprehensive SPARQL Query Validation

rdf_star

SPARQL-star (RDF-star) Completeness Module

result_formats

Extended Result Format Support for SPARQL

results

SPARQL Query Results Format Support

scirs_optimize_integration

SciRS2 Optimization Integration for ARQ Query Processing

service_clause

service_description

SPARQL 1.1 Service Description

simd_query_ops

SIMD-Accelerated Query Operations

star_integration

SPARQL-star Integration Module

statistics

Statistics and cardinality estimation for query optimization

statistics_collector

Advanced Statistics Collection for Query Optimization

stats

Runtime statistics collection for adaptive query feedback.

streaming

Auto-generated module structure

string_functions_ext

Enhanced String Functions for SPARQL 1.1+

subgraph_matcher

Subgraph isomorphism / pattern matching for RDF graphs.

subquery

system_load_monitor

System Load Monitoring for Adaptive Query Execution

term

Comprehensive Term System for SPARQL Query Processing

timeout

SPARQL query timeout enforcement

triple_functions

RDF-star TRIPLE Functions

update

SPARQL UPDATE Operations

update_graph_management

SPARQL 1.1 UPDATE Graph Management Operations

update_protocol

SPARQL 1.1 Update Protocol — standalone parser and in-memory executor

values_clause

values_support

VALUES Clause Support for SPARQL

vector_query_optimizer

Vector-Aware Query Optimizer

websocket_streaming

WebSocket Streaming for SPARQL Query Results

window_function

Macros

iri

literal

path_alt

path_inv

path_opt

path_plus

path_seq

Convenience macros for building property paths

path_star

register_function

Macro for easy function registration

triple

Convenience macros for building algebra expressions

var

Structs

Variable

Variable identifier - reuse from core A SPARQL variable

Type Aliases

Result