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
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
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