Cross-engine unified query execution for Neumann
Tensor Train decomposition, delta encoding, and RLE compression for tensor data
Core tensor-based key-value storage with HNSW indexing and tiered caching
High-performance graph database engine with traversal algorithms and pattern matching
Hand-written recursive descent parser for the Neumann query language
Unified query routing across relational, graph, and vector engines
SQL-like relational engine with SIMD-accelerated filtering and columnar storage
Content-addressable blob storage with streaming and garbage collection
Multi-layer LLM response cache with exact, semantic, and embedding lookup
Checkpoint and rollback system for Neumann database
R-tree spatial index for region and nearest-neighbor queries
AES-256-GCM encrypted secret storage with graph-based access control