34 Commits

Author	SHA1	Message	Date
dimgigov	ed5a71913c	fix: harden exception handling, break ARC cycles, sync license/client ... Replace bare except: with CatchableError across storage, query, Raft, backup, and protocol code so Defects are not swallowed. Break uncollectable ARC cycles in server shard/gossip callbacks via Server-owned refs and cursor locals. Align package license with LICENSE (BSD-3-Clause), sync README version, and point test_all at the canonical clients/nim baradb client (parseConnectionString + aliases).	2026-07-23 01:07:51 +03:00
dimgigov	8db5cfe7e1	feat: harden storage, schema persistence, fair benches, fix wire crash ... Core storage: hash MemTable, WAL group commit, L0 compaction rebuild, reader-writer lock, and a global StorageGate so HTTP workers and TCP share the LSM safely under multi-thread access. Schema: durable CREATE/ALTER/DROP under _schema:tables:* with full LSM restore on open. Executor types/values/schema split into query/exec/. Wire protocol: switch default MM to ARC — ORC cycle collector segfaulted after ~20 async INSERTs. Fair multi-tier benchmarks (SQLite/HTTP/wire/PG) and honesty docs for mixed-tier comparisons.	2026-07-18 16:55:50 +03:00
dimgigov	42043f3946	v1.1.7: deep security & reliability audit — 33 bugs fixed ... Critical (5): - Reject empty JWT secret when authEnabled (server.nim) - Fix 2PC marking uncontacted participants as prepared/committed (disttxn.nim) - Fix Raft commit index calculation for even-sized clusters (raft.nim) - Fix REP/DISTTXN protocol auth bypass (server.nim) - Fix HTTP backup/restore path traversal (httpserver.nim) High (11): - Fix WAL write race with flush (lsm.nim) - Fix MVCC savepoint/rollback deep-copy writeSet (mvcc.nim) - Fix table mutation during deadlock iteration (mvcc.nim) - Fix LIMIT 0 returning all rows (executor.nim) - Fix COUNT(col) counting NULL values — 3 locations (executor.nim) - Fix EXISTS subquery lowering missing subqueryPlan (executor.nim) - Fix Raft appendEntries/applyCommitted array vs logical index (raft.nim) - Fix timing attacks on constantTimeCompare and SCRAM (auth.nim, scram.nim) - Fix B-tree leaf merge phantom separator key (btree.nim) - Fix SSL verifyPeer not applied to newContext (ssl.nim) - Fix sharding connectWithTimeout missing SO_ERROR check (sharding.nim) - Fix sync replication returning success on partial ack (replication.nim) - Fix WebSocket JWT expiration not validated (websocket.nim) Medium (13): - Fix writeSSTable partial file → tmp + atomic rename (lsm.nim) - Fix multi-CTE table loss (executor.nim) - Fix nl_to_sql DML restricted to superuser (executor.nim) - Fix unbounded plan cache — max 10000 (adaptive.nim) - Fix migration lock crash persistence — timestamp + stale detection (executor.nim) - Fix admin panel auth (httpserver.nim) - Fix MVCC unbounded txn tracking — prune in compactVersions (mvcc.nim) - Fix connection pool maxLifetime check (pool.nim) - Fix JWT JSON parser backslash escapes (auth.nim) - Fix substr(s, start) returning single char (udf.nim) - Fix loadSSTable minimum file-size check (lsm.nim) - Fix compaction mmap leak (compaction.nim) - Fix JSON injection in hybrid_search_filtered (executor.nim) Low (4): - Raft loadState logs error instead of silent discard - Replication healthCheck double-close fixed - Lexer readIdent double column counting fixed - WebSocket frame 32-bit overflow guard All 448 tests passing, 0 failures. Bump version to 1.1.7.	2026-05-29 14:17:41 +03:00
dimgigov	7d19e06805	fix(btree): critical seq.del vs seq.delete bug and B+ tree leaf traversal ... Root cause: seq.del(i) does swap-with-last (destroys sorted order) while seq.delete(i) preserves order. This caused massive data loss during B-tree removes. Changes: - btree.nim: Replace seq.del with seq.delete (critical data corruption fix) - btree.nim: search() traverses leaf linked list for duplicate boundary keys - btree.nim: splitChild() consolidates duplicate boundary key values before split - btree.nim: len() counts unique keys via leaf traversal - btree.nim: remove() traverses leaf linked list to remove ALL occurrences - btree.nim: Fix separator update in internal node (node.keys[i-1] not [i]) - prop_test.nim: Use set equality for interleaved test (rebalancing reorders) Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>	2026-05-23 22:01:20 +03:00
dimgigov	2d310a33a1	fix: resolve all 55 identified bugs across the codebase ... Comprehensive bug fix pass across all subsystems: - Critical: lexer infinite loop, WAL lock discipline, checkpoint safety, compaction verification, HMAC key truncation, healthCheck leak - High: MVCC lock safety, B-Tree delete rebalancing, Raft stale term handling, replication socket leaks and ack cleanup, sharding migration with old assignments, 2PC recovery, JWT/SCRAM auth fixes, wire protocol bounds checks - Medium: config error handling, MERGE parser completeness, IR/codegen correctness, UDF bounds checks, LIMIT cost accuracy, mmap safety - Low: timeout handling, float parsing edge cases, uint32 truncation, cache entry cleanup Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>	2026-05-21 10:59:51 +03:00
dimgigov	cd46edcb67	Bump version to 1.1.6; fix storage bugs, tests, CI pipeline and Docker config ... Storage fixes: - Fix bloom filter hash2 OverflowDefect (uint64 instead of int Hash) - Fix MemTable.put size calculation on overwrite (was leaking size) - Fix fuzz_test duplicate-key issues in LSM delete and SSTable tests Test fixes: - Fix stress_test.nim: replace deprecated threadpool with std/threads - Fix fuzz_test.nim: add missing imports (tables, algorithm, sets) - Fix fuzz_test.nim: var sst for close() compatibility - Remove unused imports from test_all.nim and bench_all.nim Docker / CI fixes: - Fix Dockerfile.source: invalid nimlang/nim:2.2.10-alpine tag → 2.2.10 + ubuntu:24.04 runtime - Fix Dockerfile.source healthcheck (--spider → -qO- for 200 OK) - Fix Dockerfile run comment ports (9470/9471 → 9912/9913) - Fix scripts/docker-run.sh healthcheck port (9470 → 9912) - Add ARG BUILD_DATE/VCS_REF to Dockerfile for docker-build.sh - Update all version strings 1.1.4 → 1.1.6 across nimble/docker/source/docs	2026-05-19 12:13:33 +03:00
dimgigov	7e6a45e6b7	Стабилизация на storage слоя — 6 фази ... Фаза 1: SSTable Integrity - SSTable v3 формат с CRC32 footer (data/index/bloom CRC) - Нов модул storage/crc32.nim (zero-dep, IEEE 802.3) - verifySSTable() — проверка на magic, version, CRC - loadSSTable strict mode — отхвърля корумпирани файлове - newLSMTree логва [WARN] при corrupt SSTables Фаза 2: baradb repair - Нов модул tools/repair.nim - Сканира SSTables, проверява CRC, премества битите в corrupt/ - WAL replay (CrashRecovery) за възстановяване на данни - CLI: ./baradadb repair --data-dir=... [--dry-run] Фаза 3: MANIFEST File - Atomic write MANIFEST (tmp + rename) - newLSMTree зарежда от MANIFEST, fallback към walkDir - checkStorageConsistency() — orphan/missing detection - flushUnsafe и compaction записват MANIFEST Фаза 4: WAL Rotation & Incremental Backup - WAL segment rotation при 64MB (wal_archive/wal.000NNN.log) - maybeRotate() на всеки 1000 записа + при flush - backup incremental — архивира MANIFEST + SSTables + WAL - CRC verification на SSTables преди архивиране Фаза 5: Online Consistent Backup - checkpoint() — freeze memtable + flush + WAL rotate - ./baradadb checkpoint — offline consistent snapshot - backup --online — checkpoint + incremental backup Фаза 6: SSTable Version Migration - SSTable.fileVersion поле - listLegacySSTables() — намира v1/v2 файлове - migrateSSTable() — пренаписва към v3 (tmp + rename) - ./baradadb migrate [--dry-run] — offline migration Документация: - Обновени docs/en/backup.md, docs/bg/backup.md - Обновени docs/en/storage.md, docs/bg/storage.md - Добавени тестове в tests/test_all.nim	2026-05-18 15:04:49 +03:00
dimgigov	132e8c7a31	Phase 5: Storage fuzz tests + WAL entryCount fix + SSTable overflow checks + compaction sizeBytes accuracy ... - WAL: entryCount is now accurate after restart by counting existing entries - LSM writeSSTable: adds uint32 overflow checks for key/value/entry counts - Compaction: sizeBytes now uses actual file size instead of rough guess - Fuzz tests: 14 new tests covering WAL truncation, LSM put/get/delete, recovery, scan, overwrites, SSTable roundtrip, corruption, tombstones	2026-05-18 12:34:26 +03:00
dimgigov	3f29c519d4	Storage hardening: btree size fix, WAL entryCount note, LSM put error handling ... - btree.nim: insertNonFull returns bool; size only increments for new keys - wal.nim: comment about entryCount reset on append - lsm.nim: recovery/put/delete/putUnsafe raise IOError if put fails after flush	2026-05-18 12:14:30 +03:00
dimgigov	8596cea548	Stabilization: replication semi-sync, MVCC aborted deleters, SSTable level, SCRAM fix ... P0-P1 fixes: - replication.nim: rmSync/rmSemiSync now wait for replica ACKs - mvcc.nim: aborted deleters no longer hide records (return true for visibility) - storage/lsm.nim: SSTable level persisted in header (version 2, backward compat) - protocol/auth.nim: removed insecure SCRAM raw hash fallback Build: 0 warnings, 0 errors. All tests pass.	2026-05-18 12:04:45 +03:00
dimgigov	47c4393a7e	Complete plan execution: gossip/raft bounds, deadlock fix, JSON escaping, memtable limits ... Remaining plan items: - 1.4 hybrid_search: JSON built with std/json instead of string concat - 2.3 lsm.nim: reject oversized memtable entries - 3.3 gossip.nim: bounds checking for idLen/nodeCount/hostLen - 3.4 raft.nim: max length caps for cmdLen/dataLen/logLen - 4.3 deadlock.nim: per-path seq stack instead of global parent table	2026-05-18 11:42:46 +03:00
dimgigov	967c0855a5	Bug fixes: composite PK, nl_to_sql sandbox, FK check, SQL injection, storage correctness ... Critical fixes: - Composite PK: execInsert + validateConstraints use all PK columns - nl_to_sql: non-SELECT SQL no longer executed directly during validation - FK check: removed O(N) scanMemTable fallback, uses db.get() with SSTables - exprToSql: nkIdent wrapped in quotes to prevent SQL injection - restoreSchema: try/except around tokenize/parse for crash resilience - recovery.nim: lastTxnId tracking + putUnsafe/deleteUnsafe without WAL - SCRAM: verifyClientProof length check + DefaultIterationCount restored Storage fixes: - lsm.nim: SSTable sort order fixed (ascending), close() flushes all memtables - compaction.nim: tombstones preserved during compaction - wal.nim: header written for empty existing files, readEntries checks magic - btree.nim: B+ tree leaf split keeps boundary key - bloom.nim: deserialize raises on short data - mmap.nim: bounds checks for adviseWillNeed/DontNeed + posix.close() Protocol fixes: - zerocopy.nim: readString bounds check - wire.nim: deserializeValue 32-bit underflow check - auth.nim: JWT JSON escaping for claims - server.nim: readUint32BE bounds check + specific exception handling - raft.nim: readData checks + specific exception handling Tests: - Added Composite Primary Key test suite (4 tests) Build: 0 warnings, 0 errors	2026-05-18 11:33:11 +03:00
dimgigov	19fa760604	Week 4: Production Hardening — Thread Safety, Fuzz Tests, Property-Based Tests, NimForum Smoke Test ... Thread Safety: - Add lock to BTreeIndex (insert/get/scan/remove/contains) - Add lock to InvertedIndex (addDocument/removeDocument/search/bm25/tfidf/fuzzy/regex) - Add ctxLock to ExecutionContext for DDL/schema metadata, autoIncCounters, sequences - Deep-copy sessionVars in cloneForConnection() to isolate per-connection state - Fix activeConnections check-then-act race with Lock Wire Protocol Hardening: - Fix RangeDefect in deserializeValue for invalid FieldKind bytes - Fix IndexDefect in fkFloat32/fkFloat64 by reusing readUint32/readUint64 - Fix int32/int64 cast from uint32/uint64 to use cast[] instead of constructor - Fix parseHeader to validate MsgKind instead of holey enum cast Property-Based Tests (tests/prop_test.nim): - 8 invariants for evalExprValue: literal types, commutativity, identity, double negation, NULL propagation Wire Protocol Fuzz (tests/fuzz_test.nim): - 7 fuzz tests: random bytes deserialization, truncated buffers, MsgKind casts, parseHeader logic, message roundtrips NimForum Adapter Smoke Test (tests/nimforum_smoke_test.nim): - Full TCP server lifecycle with adapter CRUD and parameterized queries Test Results: 423 tests pass, 0 failures	2026-05-17 11:57:55 +03:00
dimgigov	07a22d305d	chore: fix all build warnings and add stabilization roadmap ... - Fix 3× ResultShadowed in cypher.nim, recovery.nim, shell.nim - Remove 6× UnusedImport in test files - Build is now clean: 0 warnings, 294 tests pass - Add 4-week stabilization plan to PLAN.md (Sessions 9.1–9.4)	2026-05-17 03:47:17 +03:00
dimgigov	c5751b4a0c	fix: clean up compiler warnings and unused variables	2026-05-15 18:01:11 +03:00
dimgigov	c0bd3dff86	feat: distributed gaps filled — gossip UDP transport, sharding data migration, inter-module wiring (raft-disttxn, gossip-sharding, replication-disttxn)	2026-05-13 11:11:53 +03:00
dimgigov	422df08ab9	feat: clean build + crossmodal.tla + TLA+ symmetry (v1.0.0-prep) ... Build warnings cleanup (0 warnings): - Suppress threadpool deprecation warning (baradadb.nim) - Remove unused 'os' import (logging.nim) - Fix ImplicitDefaultValue for newNode params (ast.nim) - Add explicit cstring cast for posix.open (wal.nim) - Fix HoleEnumConv for MsgKind parsing (server.nim) TLA+ Formal Verification: - Add symmetry reduction (Permutations) to all 9 existing specs - Add SYMMETRY directive to all .cfg files - New crossmodal.tla: cross-modal consistency spec * MetadataVectorConsistency, HybridResultValid * CommittedAtomicity, AbortedAtomicity, TxnStateValid - New models/crossmodal.cfg Tests: - Add Cross-Modal TLA+ Faithfulness tests (4 tests) Docs: - Update PLAN.md and BUG_AUDIT.md with completed tasks	2026-05-13 09:24:04 +03:00
dimgigov	a72e17f063	fix: последните 4 критични/средни бъга — LSM-Tree, MVCC, DistTxn, Raft ... Поправени проблеми: - LSM-Tree: WAL write вече е извън db.lock (отделен walLock) → по-добра concurrency - MVCC: добавен compactVersions() който се изпълнява на всеки 100 commits Премахва стари overwritten версии, които не са видими за active транзакции - DistTxn: commit() вече НЕ rollback-ва commit-нали participants Ако някой participant е commit-нал, транзакцията се маркира като committed - Raft: добавен disk persistence за currentTerm, votedFor, log saveState() при всяка промяна; loadState() при стартиране 292 теста, 0 failure-а.	2026-05-12 23:30:58 +03:00
dimgigov	6aaabb518d	fix: високо и средно приоритетни бъгове в query, protocol, storage, vector, fts ... Поправени проблеми: - Wire protocol: bounds checking, max length limits, recursion depth limit - SQL injection: escape-ване на quotes в exprToSql string literals - ReDoS: escape-ване на regex metachars в LIKE/ILIKE - Stale BTree indexes: добавен BTree.remove() + изтриване при UPDATE/DELETE - SSL: quoteShell за всички shell команди с пътища - Boolean literals: parser вече разпознава tkTrue/tkFalse - Unary minus: lowerExpr map-ва ukNeg към irNeg (вместо irNot) - Non-aggregate UDFs: lowerExpr създава irekFuncCall вместо NULL literal - UTF-8 FTS: tokenize използва runes вместо байтове - HNSW: добавен Lock за thread-safe insert/search 292 теста, 0 failure-а.	2026-05-12 23:02:54 +03:00
dimgigov	131541a0e5	fix: критични бъгове в storage, MVCC, auth, Raft, query executor ... Поправени проблеми: - MVCC: aborted транзакции вече не стават видими (добавено abortedTxns множество) - LSM-Tree: поправена загуба на данни при immutable memtable overwrite - LSM-Tree: поправена SSTable search order (сортиране по id вместо minKey) - WAL: sync()/close() вече извикват posix.fsync() - Auth: simpleHash (djb2) заменен с HMAC-SHA256 - Recovery: summary() вече не мутира базата данни - Raft: поправена majority calculation за четен брой нодове - Query: EXISTS subqueries вече изпълняват подзаявката - Nimble: поправен build (-d:ssl) и bench task Добавен BUG_AUDIT.md с пълен доклад и план за подобрения. 292 теста, 0 failure-а.	2026-05-12 22:45:50 +03:00
dimgigov	651375a156	feat: production hardening — JWT security, WAL reader, tracing, 2PC real RPC, stress test fix ... - JWT: getEffectiveJwtSecret() helper + warning log when not configured - WAL: readEntries() with timestamp filter for PITR - Tracing: core/tracing.nim with span recording + executeQuery integration - 2PC: real TCP RPC via sendDistTxnRpc (host='' = local fallback) - Stress test: updated comment, 10K ops confirmed with internal locks - SSTable metadata comments clarified (offsets patched correctly) - addParticipant has default params (host='', port=0)	2026-05-07 13:31:29 +03:00
dimgigov	08f73598a5	Fix WAL crash recovery — data survives power loss ... - wal.nim: open existing WAL with fmAppend instead of fmWrite (was truncating!) - lsm.nim: replay WAL entries into memTable on startup before accepting writes - Fixes real data loss on crash — previously WAL was wiped on every restart	2026-05-07 00:29:43 +03:00
dimgigov	f9f77b3a18	feat: production blockers — JOINs, deadlock detection, TLS, parameterized queries ... - JOIN execution: INNER/LEFT/RIGHT/FULL/CROSS with column disambiguation - Deadlock detection: wait-for graph wired into TxnManager.write() - TLS/SSL: OpenSSL via std/net for TCP wire protocol, auto self-signed certs - Parameterized queries: ? placeholders with WireValue binding - Wire protocol: mkQueryParams message support - HTTP /query endpoint accepts JSON params array - Nim client: query(sql, params) overload - Tests: 262 passing (15 new) All PLAN.md production blockers resolved.	2026-05-06 16:42:53 +03:00
dimgigov	856a07c030	feat: HTTP server in main entry point + background compaction scheduling ... - baradadb.nim now starts both TCP wire protocol and HTTP REST servers - HTTP server runs in background thread via hunos on port TCP+440 - WebSocket server auto-starts on HTTP port + 1 - CompactionManager with background async loop (default 60s interval) - CompactionStrategy wired to LSMTree SSTables - Fixed forward declaration for lowerExpr in executor.nim - 216 tests passing	2026-05-06 14:23:13 +03:00
dimgigov	1fb715a1d4	feat: integrate hunos web server + jwt-nim-baraba + real WAL recovery + compaction ... HTTP Server: - Replaced asynchttpserver with hunos (multi-threaded, trie router, CORS middleware) - JWT authentication via jwt-nim-baraba (HS256 with BearSSL crypto) - POST /query, GET /health, GET /metrics, POST /auth, GET /api (OpenAPI spec) - Proper CORS headers via hunos corsMiddleware WAL Recovery: - recover() now actually applies committed entries (REDO) - Skips uncommitted entries (UNDO) - Takes optional LSMTree parameter to apply recovery SSTable Compaction: - Real compaction: reads SSTable entries, merges by key (newest wins), writes merged file - Deduplication: keeps only newest version per key - Tombstone cleanup: removes deleted entries - Old SSTable files deleted after merge Dependencies: - Added hunos >= 1.2.0 and jwt >= 2.1.0 to nimble SSTable fields exported for compaction access. All 216 tests pass	2026-05-06 13:42:37 +03:00
dimgigov	096c8347cf	feat: complete Phase 3 + new production roadmap for Web/ERP ... - Thread-safety: locks in LSMTree and Graph engines - Raft network transport: async TCP, serialization, heartbeat, 3-node election test - CI/CD: GitHub Actions workflow - Cleanup: remove dead code, unused imports, build artifacts - New PLAN.md targeting production Web/ERP readiness - 216 tests passing	2026-05-06 10:40:34 +03:00
dimgigov	f8909f155c	feat: wire protocol integration in TCP server ... - Server now reads binary wire protocol messages (header + payload) - Implements recvExact for reliable message framing - Query execution against LSM-Tree for SELECT/INSERT/DELETE - SELECT supports point reads (WHERE key = 'value') and full scans - INSERT parses simple EdgeDB-style syntax - DELETE with WHERE clause - Wire protocol responses: Data, Complete, Error, Pong - Export wire protocol read/write helpers for external use - Add scanMemTable to LSMTree for full scans - Add GEL/ to .gitignore - All 214 tests pass	2026-05-06 03:38:10 +03:00
dimgigov	5dba7b5699	feat: Phase 1 — SSTable persistence, README honesty, benchmark fix ... - Add Current Status / Limitations section to README - Fix benchmark compilation (Duration.ticks → inNanoseconds) - Implement real SSTable binary format with write/read/mmap support - Add BloomFilter serialize/deserialize for disk storage - Fix mmap.nim to use posix.open instead of system.open - New PLAN.md with improvement roadmap - All 214 tests pass	2026-05-06 03:16:39 +03:00
dimgigov	805dbc8ad6	fix: comprehensive bug audit — 15 critical/high/medium fixes ... Critical fixes: - B-Tree splitChild: fixed out-of-bounds on child.children.len (mid+1..len → mid+1..<len) - Wire protocol: all deserializeValue cases now properly assign to result - Wire protocol: fkBool/fkInt8 now increment pos after reading - MVCC: write-write conflict now detected for completed transactions - MVCC: commit only marks visible versions as deleted (not concurrent uncommitted) - Lexer: buffer overrun on backslash escape at end of input — added bounds check - Bulgarian/Russian stemmers: fixed UTF-8 byte offsets for Cyrillic suffixes (2 bytes per char) High fixes: - WebSocket: added missing std/tables import - Raft: added randomize() call for election timeouts - MemTable.get: binary search O(log n) instead of linear scan O(n) Medium fixes: - Zerocopy: string length now written as 4-byte int32 (was single byte) - Raft appendEntries: guard against nextIdx underflow - Columnar: null tracking with nulls seq on ColumnPtr - Removed dead code in lexer readIdent (redundant true/false checks) - Updated Bulgarian stemming test to match corrected byte offsets All 214 tests pass across 48 suites with 0 failures.	2026-05-06 02:46:37 +03:00
dimgigov	b9f6059cbf	feat: crash recovery, Raft election timer, CLI autocomplete, roadmap update — 246 tests ... Crash Recovery: - WAL file scanning with magic/version/entry parsing - REDO/UNDO analysis — identify committed vs uncommitted txns - Summary reporting with entry/txn/apply status Raft Election Timer: - ElectionTimer with configurable timeout and tick/check/reset - Automatic election start on follower timeout - Candidate timeout restart on failed elections CLI Autocomplete: - Full autocomplete engine for commands and SQL keywords - Suggest function for single/multi completions - 60+ keywords (SELECT, FROM, WHERE, JOIN, GROUP BY, etc.) ROADMAP.md: - All completed items properly marked - Updated status table — 9 out of 12 phases at 90%+ 14 new tests (246 total, all passing)	2026-05-06 02:12:49 +03:00
dimgigov	b0a760c0ab	feat: schema inheritance, codegen, replication, mmap — 136 tests ... Schema: - Inheritance: multi-level, property merging, override, isSubtype - Computed properties with expressions - getSubtypes for polymorphic queries Codegen: - IR plan → storage operations compilation - Predicate pushdown optimization (filter → point read) - Cost estimation and EXPLAIN output Replication: - Sync replication (wait for all replicas) - Async replication (fire and forget) - Semi-sync (wait for N replicas) - Replica state tracking and lag monitoring Storage: - Memory-mapped I/O for SSTable access - Sequential/random access hints (madvise) - Page-level read operations 29 new tests (136 total, all passing)	2026-05-06 01:23:28 +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