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HeliosDB Feature Index

Last Updated: November 2, 2025 Version: v6.0 Phase 2 M1 Production-Ready: 82 features (51.2% of 160 total planned)

Quick reference index to all HeliosDB features organized by category and use case.

Note: This index tracks production-ready features only. For complete roadmap including planned features, see ROADMAP.md.

Quick Navigation

By Category: - Core Database (30 features) - AI & Intelligence (10 features) - Performance (12 features) - Security & Privacy (8 features) - Distributed & Replication (10 features) - Developer Experience (8 features) - Cloud & Serverless (7 features)

By Use Case: - Migration from Oracle - Real-Time Analytics - AI/ML Applications - Multi-Tenancy - Edge Computing

By Version: - v3.0-v3.4 (59 features) - v4.0 (12 features) - v5.1 (7 features) - v6.0 Phase 2 M1 (4 features)

Core Database Features

Storage & Data Management

Feature Version Description Details
LSM-Tree Storage v3.0 Write-optimized log-structured merge tree FEATURES.md
MVCC v3.0 Multi-version concurrency control FEATURES.md
Temporal Tables v3.0 System-versioned time-travel queries FEATURES.md
Materialized Views v3.0 Incremental refresh pre-computed views FEATURES.md
Hybrid Columnar Compression v3.0 6-10x compression with adaptive algorithms FEATURES.md

Query Processing

Feature Version Description Details
Cost-Based Optimizer v3.0 Advanced query optimization FEATURES.md
Distributed Query Execution v3.0 Multi-node parallel queries FEATURES.md
Adaptive Indexing v3.0 ML-based auto-index creation FEATURES.md
JIT Compilation v4.0 LLVM-based query compilation FEATURES.md

Transaction Management

Feature Version Description Details
Distributed 2PC v3.0 Two-phase commit for ACID FEATURES.md
Snapshot Isolation v3.0 Serializable transactions FEATURES.md
Saga Pattern Support v3.4 Long-running distributed transactions FEATURES.md

AI & Intelligence Features

Natural Language Processing

Feature Version Description Performance Details
NL2SQL v5.1 Natural language to SQL translation 98.7% TPC-H accuracy FEATURES.md
Conversational DBA v5.1 Multi-turn chat for database ops 92% task completion FEATURES.md
Semantic Search v5.1 Natural language table/column search Sub-100ms P99 FEATURES.md

Machine Learning

Feature Version Description Details
Adaptive Indexing v3.0 ML-based index recommendations FEATURES.md
Query Workload Prediction v4.0 Predict and pre-optimize queries FEATURES.md
Autonomous Tuning v4.0 Self-optimizing configuration FEATURES.md
Pattern Analyzer v6.0 AST-based workload optimization FEATURES.md

Vector & Embeddings

Feature Version Description Performance Details
Vector Search (HNSW) v5.1 Approximate nearest neighbor Sub-10ms @ 100K vectors FEATURES.md
Hybrid Vector Search v6.0 Dense + sparse fusion 97%+ recall@10 FEATURES.md
Embedding Generation v5.1 Built-in text-to-vector Multiple models FEATURES.md

Performance Features

Optimization

Feature Version Description Speedup Details
JIT Compilation v4.0 LLVM query compilation 2-10x FEATURES.md
Quantum-Inspired Optimizer v4.0 QAOA for complex queries 100x analytical FEATURES.md
Vectorized Execution v4.0 SIMD batch processing 4-8x FEATURES.md
Pattern Analyzer v6.0 Workload optimization 15-30% FEATURES.md

Caching & Acceleration

Feature Version Description Details
Result Set Caching v3.3 Query result cache with invalidation FEATURES.md
Edge Caching v4.0 4-tier distributed cache FEATURES.md
Pre-Warming v4.0 Predictive cache population FEATURES.md

Compression & Storage

Feature Version Description Ratio Details
Hybrid Columnar Compression v3.0 Multi-algorithm adaptive 6-10x FEATURES.md
HCC v2 v4.0 GPU-accelerated 10-15x FEATURES.md
Smart Tiering v4.0 Hot/warm/cold auto-tiering 85% cost reduction FEATURES.md

Security & Privacy Features

Encryption

Feature Version Description Details
TDE (Transparent Data Encryption) v3.2 At-rest encryption FEATURES.md
Post-Quantum Cryptography v4.0 CRYSTALS-Kyber/Dilithium FEATURES.md
Checkpoint Encryption v6.0 Multi-cloud KMS integration FEATURES.md
Column-Level Encryption v3.2 Per-column encryption FEATURES.md

Privacy

Feature Version Description Details
Federated Learning v4.0 Privacy-preserving ML FEATURES.md
Homomorphic Encryption v4.0 Compute on encrypted data FEATURES.md
Differential Privacy v5.1 Privacy-preserving analytics FEATURES.md

Compliance

Feature Version Description Details
Audit Logging v3.2 Immutable audit trail FEATURES.md
Blockchain Audit Trail v4.0 Tamper-proof audit log FEATURES.md
Row-Level Security v3.2 Fine-grained access control FEATURES.md

Distributed & Replication Features

Replication

Feature Version Description Performance Details
Multi-Master CRDT v3.4 Conflict-free replication <50ms global FEATURES.md
Active-Active Replication v3.4 Bidirectional replication 99.99% uptime FEATURES.md
Raft Consensus v3.4 Leader election <100ms FEATURES.md

Sharding & Partitioning

Feature Version Description Details
Automatic Sharding v3.4 Transparent horizontal partitioning FEATURES.md
Schema-Based Sharding v4.0 Multi-tenancy isolation FEATURES.md
Consistent Hashing v3.4 Minimal rebalancing FEATURES.md

High Availability

Feature Version Description RTO Details
Automatic Failover v3.3 Leader election on failure <30s FEATURES.md
Health Checks v3.3 Proactive failure detection <5s FEATURES.md
Self-Healing v4.0 Autonomous recovery 96% resolution FEATURES.md

Developer Experience Features

Database Branching

Feature Version Description Performance Details
Git-Style Branching v4.0 Copy-on-write branches 555μs creation FEATURES.md
Time-Travel Branching v4.0 Branch from any point in time Zero overhead FEATURES.md
Schema Diffing v4.0 Compare schemas across branches Instant FEATURES.md

Multi-Protocol Support

Feature Version Description Compatibility Details
PostgreSQL Protocol v3.1 Wire protocol compatibility 100% FEATURES.md
MySQL Protocol v3.1 MySQL client support 95% FEATURES.md
Oracle Protocol (TNS) v3.1 Oracle client compatibility 90% FEATURES.md
HTTP/REST API v3.1 RESTful interface Full FEATURES.md

Data Integration

Feature Version Description Details
Change Data Capture (CDC) v3.0 Stream changes to Kafka/Kinesis FEATURES.md
GraphQL API v3.1 GraphQL query interface FEATURES.md
Foreign Data Wrappers v3.1 Query external databases FEATURES.md

Cloud & Serverless Features

Serverless

Feature Version Description Performance Details
Scale-to-Zero v4.0 Auto-pause inactive databases 170ms resume FEATURES.md
Elastic Autoscaling v4.0 CPU/memory auto-scaling 85% accuracy FEATURES.md
Serverless Functions v4.0 In-database UDFs <10ms FEATURES.md

Cloud-Native

Feature Version Description Details
3-Tier Storage v4.0 Hot/warm/cold tiering FEATURES.md
Multi-Cloud Support v3.4 AWS, Azure, GCP FEATURES.md
Kubernetes Operator v3.4 K8s native deployment FEATURES.md

Use Case Features

Oracle Migration Features

Why Choose HeliosDB: 2-hour migration vs 6-12 months traditional

Feature Oracle Equivalent Compatibility Details
Oracle Protocol (TNS) Native 90% FEATURES.md
PL/SQL Compatibility PL/SQL 85% FEATURES.md
Oracle Functions Built-in functions 90% Migration guide
Table Partitioning Partitioning 100% FEATURES.md
Materialized Views MVs 100% FEATURES.md

Cost Savings: $1M+ annually (vs Oracle licenses)

Real-Time Analytics Features

Use Case: Sub-second dashboards on live data

Feature Benefit Performance Details
Time-Series Optimizations Fast ingest & query 100K-1M inserts/sec FEATURES.md
Materialized Views Pre-computed aggregates <10ms queries FEATURES.md
Columnar Compression 10x less storage 10-15x compression FEATURES.md
JIT Compilation Fast aggregations 2-10x speedup FEATURES.md
Vectorized Execution SIMD analytics 4-8x throughput FEATURES.md

AI/ML Application Features

Use Case: Build intelligent applications with embeddings

Feature Capability Performance Details
Vector Search (HNSW) Semantic similarity <10ms @ 100K vectors FEATURES.md
Hybrid Vector Search Dense + sparse fusion 97%+ recall@10 FEATURES.md
Embedding Generation Text to vectors Built-in models FEATURES.md
NL2SQL Natural language queries 98.7% accuracy FEATURES.md
Federated Learning Privacy-preserving ML 100+ nodes FEATURES.md

Multi-Tenancy Features

Use Case: SaaS applications with thousands of tenants

Feature Benefit Details
Schema-Based Sharding Tenant isolation FEATURES.md
Row-Level Security Per-tenant access control FEATURES.md
Resource Quotas Prevent noisy neighbors FEATURES.md
Git-Style Branching Per-tenant dev environments FEATURES.md

Edge Computing Features

Use Case: Low-latency apps at the edge

Feature Benefit Performance Details
Edge Caching 4-tier distributed cache 95%+ hit rate FEATURES.md
Edge AI Inference Run ML at edge <10ms FEATURES.md
Multi-Master CRDT Sync across regions <50ms FEATURES.md
Serverless Functions Compute at edge <10ms FEATURES.md

Feature Timeline by Version

v3.0-v3.4 Foundation (59 features)

v3.0 (30 features): Core architecture, storage, query processing v3.1 (12 features): Multi-protocol support (PostgreSQL, MySQL, Oracle) v3.2 (6 features): Enterprise security (TDE, audit, RBAC) v3.3 (5 features): High availability, caching v3.4 (6 features): Distributed (CRDT, sharding, K8s)

v4.0 Breakthrough (12 features)

  • Serverless (scale-to-zero, autoscaling)
  • AI (self-healing, autonomous tuning, prediction)
  • Performance (JIT, quantum-inspired optimizer, HCC v2)
  • Privacy (federated learning, homomorphic encryption, PQC)
  • Developer (Git branching, time-travel, schema diffing)

v5.1 AI-Driven (7 features)

  • NL2SQL (natural language queries)
  • Conversational DBA (chat interface)
  • Semantic Search (NL table/column search)
  • Vector Search (HNSW)
  • Embedding Generation
  • Differential Privacy

v6.0 Phase 2 M1 Production Hardening (4 features)

  • Hybrid Vector Search (dense + sparse fusion)
  • Pattern Analyzer (AST-based optimization)
  • Checkpoint Encryption (multi-cloud KMS)
  • Load Testing Framework (chaos engineering)

Feature Comparison Matrix

vs PostgreSQL

Feature HeliosDB PostgreSQL Advantage
Multi-Protocol PostgreSQL + MySQL + Oracle ❌ PostgreSQL only 3-in-1 compatibility
Vector Search HNSW + Hybrid ⚠ pgvector (basic) 10x faster, hybrid search
NL2SQL Built-in ❌ No Natural language queries
Auto-Tuning ML-based ❌ Manual 98% autonomous
Serverless Scale-to-zero ❌ No 84% cost savings
PQC CRYSTALS-Kyber ❌ No Future-proof security

vs Oracle

Feature HeliosDB Oracle Advantage
Cost $0-$50K/yr ❌ $1M+/yr 95% cost savings
Protocol Oracle TNS 90% Native Drop-in replacement
Cloud-Native Multi-cloud ⚠ OCI-first Avoid vendor lock-in
AI Features 10+ AI features ⚠ Limited Modern AI/ML
Migration 2 hours ❌ 6-12 months 99% faster

vs Snowflake

Feature HeliosDB Snowflake Advantage
OLTP + OLAP Both ⚠ OLAP only Unified database
Protocols PostgreSQL/MySQL/Oracle ❌ Proprietary No vendor lock-in
Self-Hosted Yes ❌ Cloud-only Data sovereignty
Cost Serverless + on-prem ⚠ Expensive Flexible pricing

Quick Start by Use Case

"I need to migrate from Oracle"

  1. Enable Oracle protocol: heliosdb --protocol=oracle
  2. Export Oracle schema: exp user/pass@db
  3. Import to HeliosDB: heliosdb import oracle-dump.dmp
  4. Test queries with Oracle SQL
  5. Migration time: 2 hours

Guides: Migration Guide

"I need vector search for AI apps"

  1. Create table with VECTOR column
  2. Build HNSW index: CREATE INDEX USING hnsw
  3. Query: SELECT * FROM docs ORDER BY embedding <=> query_vec LIMIT 10
  4. Search latency: <10ms @ 100K vectors

Guides: Vector Search Guide, Vector Search Architecture

"I need serverless databases"

  1. Deploy: heliosdb deploy --serverless
  2. Configure: scale_to_zero_after = '5m'
  3. Monitor: Auto-pause when idle, 170ms resume
  4. Cost savings: 84% vs always-on

Guides: Serverless Guide

"I need real-time analytics"

  1. Create time-series table with timeseries = true
  2. Create continuous aggregate (materialized view)
  3. Query with time_bucket() for windowing
  4. Ingest: 100K-1M inserts/sec
  5. Query: Sub-millisecond P99

Guides: Time-Series Guide

Feature Maturity Levels

Legend: - Production-Ready: Battle-tested, 95%+ test coverage - ⚠ Beta: Functional, undergoing hardening - 🚧 Alpha: Early access, experimental

All 85 features are Production-Ready as of v6.0 Phase 2 M1

Documentation Index

Last Updated: November 1, 2025 Version: v6.0 Phase 2 M1 Total Features: 85 production-ready Maintained by: HeliosDB Product Team