dimgigov
50f827f8cf
fix(raft): graph apply + reject non-default DB writes
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- applyReplicatedPut/Delete keep in-memory graphs in sync with node/edge
table rows (idempotent edges via addEdgeWithIdIfAbsent).
- When Raft is enabled, DML is refused on any database other than
'default' (the only DB the state machine is wired to).
- Docs updated (en/bg); unit test for graph apply.
2026-07-30 21:19:01 +03:00
dimgigov
0d51497f57
fix(raft): multi-stmt write gate, rich apply, delete kv convention
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- Reject follower writes if any statement in the batch is DML/COMMIT
(not only stmts[0]).
- COMMIT always emits empty-valued kvPairs for isDelete entries.
- applyCommand updates LSM plus secondary B-tree/FTS/HNSW indexes
(applyReplicatedPut/Delete) so follower index scans see replicated rows.
- Tests: not-leader append, commit timeout, index apply unit, E2E
index-backed SELECT on follower.
2026-07-30 21:14:46 +03:00
dimgigov
44060701b7
test(raft): E2E replicated writes; wire SQL path to raft node
...
- Fix runTcpServer to run the already-wired Server (raftNode was assigned
on a different instance that never accepted clients).
- Cap raft peer connect at 200ms and fan out heartbeats in parallel so a
dead peer cannot stall AppendEntries to the live majority.
- Add raft_writes_e2e_test: 3-node write replication, follower rejection,
and post-failover writes; wire into nimble test + gitignore.
2026-07-30 21:06:49 +03:00
dimgigov
333941ab65
feat(raft): leader appends writes to raft log and waits for commit
2026-07-30 19:36:16 +03:00
dimgigov
38c1c01841
feat(raft): classify writes, reject them on follower nodes
2026-07-30 19:07:58 +03:00
dimgigov
b6eccf284e
test(raft): end-to-end 3-node cluster election and failover
2026-07-30 18:35:18 +03:00
dimgigov
f01586354a
fix(raft): partial-read-safe frame reassembly
2026-07-30 18:01:53 +03:00
dimgigov
3f8537eaad
feat(raft): run election timer in production, reset on AppendEntries
2026-07-30 17:47:05 +03:00
dimgigov
853ec7dd3b
feat(raft): parse id@host:port peers, enable raft state persistence
2026-07-30 17:34:39 +03:00
dimgigov
e8f9cbc5bb
fix: CREATE UNIQUE INDEX actually enforces uniqueness (and persists)
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2026-07-30 17:13:29 +03:00
dimgigov
8d2d97ad94
feat(persist): standalone B-tree indexes survive restart
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2026-07-30 16:53:25 +03:00
dimgigov
821b668d87
fix(persist): unnamed FTS/HNSW indexes survive restart (nameless replay DDL)
2026-07-30 16:27:36 +03:00
dimgigov
214b9cf346
fix: DROP INDEX/TABLE clean up FTS/HNSW indexes and their schema keys
2026-07-30 16:20:23 +03:00
dimgigov
ce6e7aa707
feat(persist): graphs survive restart (rebuild from backing tables)
2026-07-30 16:11:52 +03:00
dimgigov
214e44abd7
feat(persist): HNSW vector indexes survive restart
2026-07-30 16:05:25 +03:00
dimgigov
6703ca2b29
feat(persist): FTS indexes survive restart (schema key + restore replay)
2026-07-30 15:56:48 +03:00
dimgigov
62504aa348
docs(exec): document module layering after executor split
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2026-07-30 15:17:31 +03:00
dimgigov
b282a59fb5
refactor(exec): slim executor.nim to dispatcher + hook wiring
2026-07-30 15:12:41 +03:00
dimgigov
a5976f648a
refactor(exec): extract IR plan execution into exec/plan_exec.nim
2026-07-30 15:02:34 +03:00
dimgigov
a147d4b620
refactor(exec): extract window functions into exec/window.nim
2026-07-30 14:52:17 +03:00
dimgigov
e618266325
refactor(exec): extract triggers/constraints into exec/triggers.nim
2026-07-30 14:43:49 +03:00
dimgigov
70c7297e33
refactor(exec): extract FK enforcement into exec/fk.nim
2026-07-30 14:35:15 +03:00
dimgigov
70b7ec7f08
refactor(exec): extract DML row operations into exec/dml.nim
2026-07-30 14:28:33 +03:00
dimgigov
e28c1f4896
refactor(exec): extract table scans into exec/scan.nim
2026-07-30 14:19:11 +03:00
dimgigov
f97e72314f
refactor(exec): extract RLS/privileges into exec/rls.nim
2026-07-30 14:11:08 +03:00
dimgigov
26475058bf
refactor(exec): extract AST->IR lowering into exec/lower.nim
2026-07-30 14:05:16 +03:00
dimgigov
b5e9636fd2
refactor(exec): extract expression evaluation + hybrid search into exec/eval.nim
2026-07-30 13:52:56 +03:00
dimgigov
2b8cc98348
refactor(exec): extract migration storage into exec/migrations.nim
2026-07-30 13:41:52 +03:00
dimgigov
2efcddba19
refactor(exec): extract param binding into exec/params.nim
2026-07-30 13:36:39 +03:00
dimgigov
46e3d7f51e
refactor(exec): extract join/vector helpers into exec/helpers.nim
2026-07-30 13:27:17 +03:00
dimgigov
08fb391ac1
refactor(exec): extract context management into exec/context.nim
2026-07-30 13:18:10 +03:00
dimgigov
2d09edd9f7
fix+refactor: soft keywords as identifiers, full test wiring, ORC crash docs
...
- parser: clause keywords (header, format, status, user, csv, ...) now work
as identifiers everywhere; IMPORT/EXPORT accept FORMAT csv/HEADER true
- nimble test + CI run all 13 test suites (650 checks green)
- ExecutionContext.registry is now {.cursor.} (breaks registry<->ctx cycle)
- ORC crash reproduced and bisected (tests/orc_repro.py); ARC stays the MM
2026-07-30 13:11:28 +03:00
dimgigov
ed5a71913c
fix: harden exception handling, break ARC cycles, sync license/client
...
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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
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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
aa4ab11210
feat: canonical Nim client refactor with typed rows, pool, and allographer wrapper
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- Extract wire protocol into clients/nim/src/baradb/wire.nim
- Add BaraError exception hierarchy
- Refactor BaraClient/SyncClient with typedRows, AsyncLock request queue, timeouts, TLS config
- Add BaraPool and optional HTTP fallback
- Add mock-server wire and pool unit tests
- Bump baradb nimble package to 1.2.0
- Make nim-allographer depend on canonical baradb client
- Use typed rows in allographer toJson
- Deprecate src/barabadb/client/client.nim
- Update docs/en/clients.md and clients/nim/README.md
2026-06-18 21:29:55 +03:00
dimgigov
1c42eff7ef
fix(vector): use float64 accumulators for distance functions
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Vector distance functions (cosine, euclidean, dot, manhattan) returned
float64 but accumulated sums in float32, causing precision loss in SQL
results (e.g. sqrt(2) truncated to float32). Use float64 accumulators
and casts throughout.
docs(bugs): mark BUG-023 and BUG-024 as fixed
The code already cleans up pendingAcks and passes oldAssignments from
rebalance to migrateData; update BUGS.md to match the implementation.
2026-06-12 23:06:19 +03:00
dimgigov
ef264d7d69
feat: add unified search engine — HNSW heap-opt, segment index, boolean/phrase/ngram/facet
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New src/barabadb/search/ module with 9 components:
- priority_queue.nim: BoundedHeap for O(log n) search
- hnsw_opt.nim: heap-based searchLayer (2.4x faster, 92-99% recall@10)
- inverted.nim: segment-based index with soft-delete and compaction
- phrase.nim: positional phrase + proximity search
- boolean.nim: recursive descent parser (AND/OR/NOT/ranges/wildcards)
- ngram.nim: trigram index for O(1) fuzzy/prefix/wildcard
- stemmer.nim: Porter2 stemmers (EN/BG/DE/FR/RU)
- facet.nim: faceted search with filter pushdown
- engine.nim: UnifiedSearchEngine combining all search types
Performance (dim=128, efConstruction=200):
N=1K: 0.30ms search, 99.6% recall@10
N=10K: 1.09ms search, 92.6% recall@10
N=50K: 2.26ms search, 75.5% recall@10
Includes search benchmarks (benchmarks/search_bench.nim), updated docs
(en/bg fts.md, en/bg search.md), and crossmodal engine integration.
2026-05-30 13:42:08 +03:00
dimgigov
965ed2f675
perf: optimize FTS and HNSW engines + real PostgreSQL benchmarks
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FTS Engine (src/barabadb/fts/engine.nim):
- Fix bm25Score doing O(n) linear scan per document
- Cache IDF per token instead of recomputing for each doc
- Use entry.termFreq directly instead of searching postings again
- Result: FTS search +438% (249 -> 1360 queries/s)
HNSW Vector Engine (src/barabadb/vector/engine.nim):
- Optimize distance functions with float32 + 4x loop unrolling
- Rewrite searchLayer: swap+pop instead of O(n) del, track worst-nearest
instead of sorting nearest on every iteration
- Result: HNSW insert +117% (245 -> 543 ops/s), search 2.2x faster
Benchmarks:
- Add real PostgreSQL comparison script (benchmarks/pg_bench.py)
- Add report generator (benchmarks/generate_report.py)
- Fix compare.nim cpuTime() bug (was dividing by 1M incorrectly)
- Add nimble tasks: bench_pg, bench_report
Docs:
- Update README.md and docs/en/performance.md with real measured numbers
- Add benchmarks/REAL_COMPARISON.md
Version bump: 1.1.7 -> 1.1.8
2026-05-29 17:11:22 +03:00
dimgigov
42043f3946
v1.1.7: deep security & reliability audit — 33 bugs fixed
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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
a5abb6031b
fix(backup): fix 7 bugs in backup/restore — strip-components, multi-db path, verify+log in HTTP handler, parseBackupFilename for .tar, getArchiveSize gzip -l, dead code removal
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2026-05-25 20:44:14 +03:00
dimgigov
a37a62c69e
clients/nim-allographer/src/allographer/query_builder/models/baradb/baradb_exec.nim src/barabadb/core/mvcc.nim src/barabadb/query/codegen.nim src/barabadb/query/lexer.nim src/barabadb/query/parser.nim src/barabadb/query/udf.nim tests/test_all.nim
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2026-05-25 18:56:02 +03:00
dimgigov
eb62b381a1
feat: multi-database backup, HTTP API endpoints, admin panel UI
...
- backup CLI: add --all-databases, --database, --data-root flags
- backup format: tar.gz with databases/<name>/ + backup.json metadata
- HTTP API: new endpoints /databases, /backup, /backups, /restore
- HTTP API: database switching via X-Database header
- Admin panel: database selector dropdown, Databases tab, Backups tab
- Admin panel: backup/restore UI with fetch() to new endpoints
- Update deps: hunos 1.3.0, jwt-nim-baraba 2.1.0
- Docker: backup cron uses --all-databases --data-root=/data/databases
- Docs: update api-http.md, protocol.md with correct endpoints
- OpenAPI spec updated to v1.1.6
Known limitation: DELETE /databases disabled due to ORC SIGSEGV
in LSMTree.close(). Use SQL DROP DATABASE instead.
2026-05-25 18:46:07 +03:00
dimgigov
7d19e06805
fix(btree): critical seq.del vs seq.delete bug and B+ tree leaf traversal
...
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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
b25fea4d21
fix: all 5 bugs — reserved words, cloneForConnection, SQL injection, SHOW TABLES, getRowPlain
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2026-05-21 22:51:04 +03:00
dimgigov
bb843b9a03
feat: migrate system + cross-DB engine + IMPORT/EXPORT syntax -- 22 files, client+server+docs
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2026-05-21 19:32:14 +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
d4dc433e48
fix(query): preserve both sides of duplicate column names in JOIN
...
When SELECT * joins tables with overlapping column names
(e.g. 'id' in both users and orders), the right-side value
was being dropped because irekStar filtered out dotted keys.
- Add expandStarRow() that keeps bare columns and adds
qualified aliases (u.id, o.id) only for duplicated names
- Fix r.columns expansion to include all joined tables,
qualifying duplicates from the right side
2026-05-21 09:44:31 +03:00
dimgigov
1ff6fabaff
fix(backup): resolve relative SSTable paths in incremental backup
...
MANIFEST stores relative paths like 'sstables/1.sst'.
The old code checked fileExists against CWD instead of dataDir,
silently omitting SSTables when run from another directory.
Now resolves paths relative to dataDir.
2026-05-21 09:44:28 +03:00
dimgigov
372e5cf627
fix(query,types): refactor Row to Value-typed map, fix IN list, nkPath, multi-table joins
...
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- Refactored Row from Table[string, string] to Table[string, Value]
- Added Value operators: ==, !=, $, in for string interop
- Fixed valueToString for vkNull to return '\\N' instead of ''
- Fixed evalExpr irekField to return vkNull when field not found
- Added IN (val1, val2, ...) parser support
- Fixed nkPath column names in multi-table joins
- Fixed LATERAL JOIN null padding when no matching rows
- Added CREATE/DROP/USE/SHOW DATABASE parser support
- Adapted all tests for new Value type
2026-05-20 23:22:14 +03:00
dimgigov
57d2908066
fix(executor,mvcc,tests): dedup aliases, fix txn delete, fix MIN/MAX null, add regression tests
...
- Add isDelete flag to VersionedRecord to fix COMMIT treating empty values
as DELETE. Previously version.xmax != TxnId(0) was never true for active
transactions, so deletes inside transactions never removed rows.
- Fix MIN/MAX aggregates skipping NULL: was checking for "\\N" instead
of correct "\N" sentinel, so NULL values were never skipped.
- Add duplicate alias deduplication in lowerSelect() and getSelectColumns().
Identical aliases now get _1, _2 suffixes (e.g. count(*), count(*)_1).
- Add nil guard for expr.subqueryPlan in irekSubquery evalExpr handler.
- Initialize txnManager in newExecutionContext to prevent segfault on BEGIN.
- Add regression tests: DELETE in transaction, PK-only row survival,
MIN/MAX NULL skipping.
2026-05-20 21:36:15 +03:00
dimgigov