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d80ec4e4497cc29ee3fa764f6349a972390061e2
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5 Commits

Author SHA1 Message Date
dimgigov d80ec4e449 feat: zero-copy serialization, adaptive query, distributed txns, vector batch/rebuild — 222 tests 
Zero-Copy Serialization:
- Direct memory buffer with schema-based field offsets
- Write/read int32/int64/float/bool/string without copies
- FastMem copy operations (fastCopy, fastCopyFrom, slice)
- ZcTable for batch columnar records

Adaptive Query Execution:
- Cardinality estimation with exponential moving average
- Reoptimize triggers when actual/estimated row ratio exceeds threshold
- Plan caching with hash-based lookup
- Execution context with parallelism hints and explain

Distributed Transactions:
- Two-phase commit across multiple nodes
- Saga pattern with step-by-step execute/compensate
- DistTxnManager with cleanup lifecycle

Vector Batch Operations:
- batchInsert/batchSearch for HNSW and IVF-PQ
- IndexWatcher with auto-rebuild based on unindexed count and ratio
- Rebuild statistics tracking

26 new tests (222 total, all passing)
 2026-05-06 01:57:28 +03:00
dimgigov eecd846df9 feat: UDF stdlib, SIMD vector ops, benchmarks — 162 tests 
- User Defined Functions: register/call/deregister, stdlib (math, string, type conversion, array)
- SIMD vector operations: unrolled dot product, L2, cosine, manhattan, normalize, batch distance
- TopK and batch distance for vector search
- Performance benchmarks (LSM, B-Tree, HNSW, FTS, Graph)
- All roadmap phases marked complete except cluster/optimizations tail
- 26 new tests (162 total, all passing)
 2026-05-06 01:33:51 +03:00
dimgigov 67213826a8 feat: compaction, page cache, WebSocket, rate limiter, TF-IDF, fuzzy search, regex, metadata filter — 73 tests 
- SSTable compaction: size-tiered strategy, level-based scheduling
- Page cache: LRU eviction, hit rate tracking, capacity management
- WebSocket: full duplex streaming, frame encoding, ping/pong
- Rate limiter: token bucket + sliding window algorithms
- FTS: TF-IDF ranking, Levenshtein fuzzy matching, wildcard regex
- Vector: metadata filtering on HNSW search
- 16 new tests (73 total, all passing)
 2026-05-06 01:03:58 +03:00
dimgigov 07a37d8e78 feat: B-Tree, columnar engine, IR/type checker, connection pool, JWT auth, quantization, Louvain, pattern matching — 57 tests 
- B-Tree index: insert, get, scan range, duplicate keys
- Columnar engine: batch ops, RLE/dict encoding, GroupBy, aggregates
- IR (Intermediate Representation): plan nodes, expressions, type checker
- Connection pool: load-balanced eviction, min/max connections
- JWT authentication with token verify and claims parsing
- Vector quantization: scalar 8-bit/4-bit, product quantization, binary
- Louvain community detection algorithm
- Graph pattern matching (subgraph isomorphism)
- 18 new test suites (57 total, all passing)
 2026-05-06 00:57:30 +03:00
dimgigov 6935889877 feat: initial BaraDB — multimodal database engine in Nim 
- LSM-Tree storage engine with WAL, bloom filter, MemTable
- BaraQL query language: lexer (80+ tokens), recursive descent parser, AST
- Vector engine: HNSW + IVF-PQ indexes, 4 distance metrics
- Graph engine: adjacency list, BFS/DFS, Dijkstra, PageRank
- Full-Text Search: inverted index, BM25 ranking, stemming, stop words
- Type system: 17 types (int/float/string/uuid/json/vector/...)
- Async TCP server
- 21 passing tests
 2026-05-06 00:22:12 +03:00