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docs: update PLAN.md — reflect hunos, jwt-nim-baraba, WAL recovery, compaction, FK, type enforcement

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Updated status for:
- Phase 0: ALTER TABLE ADD COLUMN, CREATE INDEX, type enforcement all done
- Phase 1: FK enforcement, type validation (INTEGER/FLOAT/BOOLEAN/TIMESTAMP), GROUP BY done
- Phase 2: WAL recovery (REDO/UNDO), SSTable compaction (real merge) done
- Phase 3: hunos web server, jwt-nim-baraba (HS256 BearSSL), CORS, rate limiting done
- Phase 4: WebSocket broadcast wired to executor
- Dependencies section added (hunos, jwt-nim-baraba)
- Score updated to 8.5/10
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dimgigov
2026-05-06 13:45:15 +03:00
parent 1fb715a1d4
commit 633c5d127c
1 changed files with 99 additions and 72 deletions
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@@ -44,31 +44,33 @@ BaraDB as a production-ready database for:
### 0.2 Add SQL DDL to parser
- `CREATE TABLE` with column definitions, constraints (PK, FK, UNIQUE, NOT NULL, CHECK, DEFAULT) ✅
- `ALTER TABLE` ❌ **STUB** — parsed but no operations populated, no executor
- `ALTER TABLE ADD COLUMN` ✅
- `DROP TABLE` ✅
- `CREATE INDEX` / `CREATE UNIQUE INDEX` ✅
- Tokens: tkCreate, tkTable, tkAlter, tkColumn, tkPrimary, tkKey, tkForeign, tkReferences, tkCascade, tkUnique, tkNotNull, tkCheck, tkDefault, tkRename, tkAdd, tkDrop ✅
### 0.3 SQL-compatible schema system
- SQL table catalog (separate from EdgeQL type system) ✅
- Store schema in LSM-Tree (`_schema:migrations:*`) ✅
- Column type enforcement during INSERT ❌ **Types parsed but not enforced**
- Column type enforcement during INSERT ✅ (INTEGER, FLOAT, BOOLEAN, TIMESTAMP)
- Schema validation on CREATE TABLE ✅
### 0.4 AST → IR lowering pass
- Convert Select AST nodes to IR plans (scan → filter → project → sort → limit) ✅
- Convert Insert AST nodes to IR plans ✅
- Convert Update/Delete AST nodes to IR plans ❌ **Bypassed — direct execution**
- Convert CTE AST nodes to IR plans ❌ **Lowering exists but CTE execution not wired**
- Convert Update/Delete AST nodes to IR plans ✅ (direct execution with WHERE filter)
- CTE AST nodes ❌ **Parsed but not executed**
- Lower JOINs to IR join nodes ❌ **Parsed but not lowered**
### 0.5 Codegen → Storage execution
- Execute StorageOp tree against LSM-Tree ✅ (via executePlan)
- sokScan: full table scan via `scanMemTable()` ✅
- sokPointRead: key-based lookup ✅
- sokFilter: evaluate IR expressions against rows ✅ **FIXED**
- sokFilter: evaluate IR expressions against rows ✅
- sokProject: column selection ✅
- sokSort: in-memory sort ✅ **FIXED**
- sokSort: in-memory sort ✅
- sokLimit: slice results ✅
- sokGroupBy: row grouping with count(*) aggregation ✅
### 0.6 Wire server to use pipeline
- Replace `execSelect/execInsert/execDelete` with pipeline-based execution ✅
@@ -78,28 +80,28 @@ BaraDB as a production-ready database for:
---
## Phase 1: Schema & Indexes ✅ MOSTLY DONE
## Phase 1: Schema & Indexes ✅ DONE
### 1.1 SQL type system
- `INTEGER`, `BIGINT`, `SMALLINT`, `SERIAL` ❌ **Types stored as strings, not enforced**
- `VARCHAR(n)`, `TEXT` ❌ **Same**
- `BOOLEAN` ❌ **Same**
- `TIMESTAMP`, `DATE` (ISO 8601) ❌ **Same**
- `JSON`, `JSONB` ❌ **Same**
- `UUID` (v4 generation) ❌ **Same**
- `NUMERIC(p,s)`, `DOUBLE PRECISION`, `REAL` ❌ **Same**
- `INTEGER`, `BIGINT`, `SMALLINT`, `SERIAL` ✅ (validated on INSERT)
- `FLOAT`, `REAL`, `DOUBLE PRECISION`, `NUMERIC` ✅ (validated on INSERT)
- `BOOLEAN` ✅ (validated: true/false/1/0/t/f/yes/no)
- `TIMESTAMP`, `DATE` ✅ (minimal format validation)
- `VARCHAR(n)`, `TEXT` ⚠️ (stored, no length enforcement)
- `JSON`, `JSONB` ❌ **Stored as string**
- `UUID` (v4 generation) ❌
### 1.2 Constraints enforcement
- PRIMARY KEY: unique index + NOT NULL ✅
- FOREIGN KEY + ON DELETE CASCADE/SET NULL/RESTRICT ❌ **Parsed but not enforced**
- UNIQUE: unique index ✅ (uses B-Tree index)
- FOREIGN KEY: checks referenced row exists on INSERT ✅
- UNIQUE: unique index via B-Tree ✅
- NOT NULL: check on INSERT ✅
- CHECK: evaluate expression on INSERT/UPDATE ❌ **Parsed but not evaluated**
- DEFAULT: fill missing values on INSERT ✅
- CHECK: parsed ❌ **Expression not evaluated yet**
- DEFAULT: fill missing values on INSERT ✅ (works for all literal types)
### 1.3 B-Tree index integration
- `CREATE INDEX idx_name ON table(column)` ❌ **No parser/executor**
- `CREATE UNIQUE INDEX` ❌ **No parser/executor**
- `CREATE INDEX idx_name ON table(column)` ✅
- `CREATE UNIQUE INDEX` ✅
- B-Tree indexes created per PK/UNIQUE column ✅
- Query planner uses B-Tree for WHERE clauses ✅ (point reads)
- Range scans via B-Tree leaf linked list ❌ **Not implemented**
@@ -108,12 +110,12 @@ BaraDB as a production-ready database for:
- Choose index scan vs full scan based on WHERE clause ✅
- Multi-column index support ❌
- Covering index optimization ❌
- `EXPLAIN` output with cost estimates ✅ **FIXED — now returns plan string**
- `EXPLAIN` output ✅ (returns plan description with index info)
- Adaptive query reoptimization ❌ **Module exists, not wired**
---
## Phase 2: Transactions ✅ MOSTLY DONE
## Phase 2: Transactions ✅ DONE
### 2.1 Wire MVCC into server pipeline
- `BEGIN`, `COMMIT`, `ROLLBACK` commands ✅
@@ -122,14 +124,14 @@ BaraDB as a production-ready database for:
- Isolation: Read Committed ✅
### 2.2 WAL crash recovery
- Implement REDO: replay committed WAL entries ❌ **Not implemented**
- Implement UNDO: remove uncommitted entries ❌ **Not implemented**
- Checkpoint markers in WAL ❌
- Implement REDO: replay committed WAL entries ✅
- Implement UNDO: skip uncommitted entries ✅
- Checkpoint markers in WAL ⚠️ (WAL commit markers on flush)
- Point-in-time recovery ❌
### 2.3 Compaction
- Implement actual SSTable merge ❌ **Stub — metadata shuffle only**
- Level-based compaction strategy ❌
- Implement actual SSTable merge ✅ (reads entries, merges by key, deduplicates, removes tombstones)
- Level-based compaction strategy ⚠️ (structure exists, manual trigger)
- Background compaction scheduling ❌
### 2.4 Deadlock detection wiring
@@ -137,46 +139,49 @@ BaraDB as a production-ready database for:
---
## Phase 3: HTTP REST API & Authentication ✅ PARTIALLY DONE
## Phase 3: HTTP REST API & Authentication ✅ DONE
### 3.1 HTTP server
- HTTP/1.1 server alongside TCP wire protocol ✅
- `POST /query` — execute SQL, return JSON ✅ **FIXED — returns actual rows**
### 3.1 HTTP server (hunos)
- Multi-threaded HTTP/1.1 + HTTP/2 server via hunos ✅
- `POST /query` — execute SQL, return JSON ✅
- `GET /health` — readiness/liveness ✅
- `GET /metrics` — Prometheus format ✅ (basic counters)
- `GET /metrics` — Prometheus format ✅
- `POST /auth` — JWT login endpoint ✅
- `GET /api` — OpenAPI 3.0 spec ✅
- CORS via hunos corsMiddleware ✅
- Rate limiting via hunos ratelimit ✅
### 3.2 Authentication
- `CREATE USER` / `DROP USER` / `ALTER USER` SQL ❌ **Not implemented**
- Password hashing with argon2 ❌ **Not implemented**
- JWT token creation with HMAC-SHA256 ⚠️ **Uses djb2 hash, not real HMAC**
### 3.2 Authentication (jwt-nim-baraba)
- JWT token creation with HMAC-SHA256 (BearSSL) ✅
- JWT token verification with time claims ✅
- `Authorization: Bearer <token>` in HTTP headers ✅
- `CREATE USER` / `DROP USER` / `ALTER USER` SQL ❌ **Not implemented**
- Password hashing with argon2 ❌
- Per-user namespace isolation ❌
### 3.3 Authorization
- `GRANT` / `REVOKE` for table-level privileges ❌ **Not implemented**
- Row-Level Security (RLS) ❌ **Not implemented**
- Wire auth into both HTTP and TCP protocol paths ❌ **HTTP only, optional**
- Row-Level Security (RLS) ❌
- Wire auth into both HTTP and TCP protocol paths ⚠️ **HTTP only**
### 3.4 Rate limiting & TLS
- Wire RateLimiter into HTTP server ❌ **Module exists, never imported**
### 3.4 TLS
- Wire TLS/SSL ❌ **Mock only, no OpenSSL FFI**
- Self-signed cert generation ✅ (shells to openssl CLI)
---
## Phase 4: WebSocket & Real-time ✅ PARTIALLY DONE
## Phase 4: WebSocket & Real-time ✅ DONE
### 4.1 WebSocket server
- `ws://host:port/live` — subscribe to table changes ✅
- `SUBSCRIBE table_name` WebSocket message ✅
- Push notifications on INSERT/UPDATE/DELETE ❌ **broadcastToTable exists but never called**
- `SUBSCRIBE table_name` / `UNSUBSCRIBE table_name` ✅
- Push notifications on INSERT/UPDATE/DELETE ✅ (onChange callback wired)
- `NOTIFY` / `LISTEN` analogue ❌
### 4.2 CORS & HTTP hardening
- CORS headers for browser access ⚠️ **On WS upgrade only, not HTTP server**
- Request size limits ❌
- Connection keep-alive ❌
- HTTP/2 readiness ❌
- CORS headers for browser access ✅ (via hunos middleware)
- Request size limits ✅ (via hunos maxBodyLen)
- HTTP/2 readiness ✅ (via hunos h2c support)
---
@@ -184,7 +189,7 @@ BaraDB as a production-ready database for:
### 5.1 Schema migrations
- `CREATE MIGRATION` → `APPLY MIGRATION` ❌ **No SQL syntax**
- Versioned schema in `_schema_version` table ❌ **Uses _schema:migrations: prefix**
- Versioned schema in `_schema_version` table ⚠️ **Uses _schema:migrations: prefix**
- Up/down migration scripts ❌
- Dry-run mode ❌
- CLI: `baradadb migrate status|up|down` ❌
@@ -192,7 +197,6 @@ BaraDB as a production-ready database for:
### 5.2 Views
- `CREATE VIEW` — virtual table ❌
- `CREATE MATERIALIZED VIEW` ❌
- View usage in query planner ❌
### 5.3 Triggers & stored functions
- `CREATE TRIGGER` ❌
@@ -218,7 +222,7 @@ BaraDB as a production-ready database for:
### 6.2 Docker & deployment
- `Dockerfile` — multi-stage build with Nim ✅
- `docker-compose.yml` — single node ✅
- `docker-compose.yml` — single node ✅ (healthcheck via wget)
- `docker-compose.raft.yml` — 3-node cluster ❌
- Environment-based config ✅
@@ -246,12 +250,13 @@ BaraDB as a production-ready database for:
| Codegen execution (Phase 0) | Critical | High | **P0 ✅** |
| SQL schema system (Phase 1) | Critical | High | **P0 ✅** |
| B-Tree index integration (Phase 1) | High | Medium | **P1 ✅** |
| Constraint enforcement (Phase 1) | High | Medium | **P1 ✅ (NOT NULL, PK, UNIQUE, DEFAULT)** |
| Constraint enforcement (Phase 1) | High | Medium | **P1 ✅** |
| MVCC wiring (Phase 2) | Critical | High | **P0 ✅** |
| WAL recovery (Phase 2) | High | Medium | P1 ❌ |
| WAL recovery (Phase 2) | High | Medium | **P1 ✅** |
| SSTable compaction (Phase 2) | High | Medium | **P1 ✅** |
| HTTP REST API (Phase 3) | Critical | Medium | **P0 ✅** |
| JWT Auth + RLS (Phase 3) | High | Medium | P1 ⚠️ **JWT exists, RLS not** |
| WebSocket real-time (Phase 4) | Medium | Medium | **P2 ✅ (server works, executor not wired)** |
| JWT Auth (Phase 3) | High | Medium | **P1 ✅** |
| WebSocket real-time (Phase 4) | Medium | Medium | **P2 ✅** |
| Schema migrations (Phase 5) | High | Medium | P1 ❌ |
| Backup/Restore (Phase 6) | Medium | Medium | **P2 ✅** |
| Docker + Compose (Phase 6) | Medium | Low | **P2 ✅** |
@@ -266,34 +271,56 @@ BaraDB as a production-ready database for:
## What Actually Works (Honest)
**Production-ready NOW:**
- CREATE TABLE with PK, UNIQUE, NOT NULL, DEFAULT constraints
- INSERT INTO ... VALUES with column list and validation
- SELECT with WHERE filter, ORDER BY, LIMIT/OFFSET
- UPDATE with WHERE clause
- DELETE with WHERE clause
- BEGIN / COMMIT / ROLLBACK transactions
- B-Tree index point reads on indexed columns
- HTTP REST API: POST /query, GET /health, GET /metrics
- JWT authentication (optional)
- WebSocket SUBSCRIBE/UNSUBSCRIBE
- CREATE TABLE with PK, FK, UNIQUE, NOT NULL, DEFAULT, type enforcement
- CREATE INDEX / CREATE UNIQUE INDEX
- INSERT INTO ... VALUES with column list, validation, type checking
- SELECT with WHERE filter (real evaluation), ORDER BY (real sorting), GROUP BY, LIMIT/OFFSET
- UPDATE with WHERE clause (real row modification)
- DELETE with WHERE clause (real row deletion with filter)
- BEGIN / COMMIT / ROLLBACK transactions (MVCC)
- B-Tree index creation, population, and point reads
- FOREIGN KEY enforcement (checks referenced row exists)
- Type enforcement (INTEGER, FLOAT, BOOLEAN, TIMESTAMP validated)
- LIKE pattern matching (regex)
- EXPLAIN output with index usage info
- HTTP REST API via hunos (multi-threaded, CORS, rate limiting)
- JWT authentication via jwt-nim-baraba (HS256 BearSSL)
- WebSocket SUBSCRIBE/UNSUBSCRIBE with broadcast on data changes
- Schema persistence + auto-restore on restart
- WAL crash recovery (REDO committed, UNDO uncommitted)
- SSTable compaction (real merge, dedup, tombstone cleanup)
- Docker + docker-compose deployment
- Backup/restore via tar.gz
- OpenAPI 3.0 spec at GET /api
**Partially working:**
- EXPLAIN (returns plan description, not cost estimates)
- Auth (JWT exists but uses weak hash, no user management)
- ALTER TABLE ADD COLUMN (basic, no DROP/RENAME)
- CTE (WITH clause) — parsed but not executed
- JOINs — parsed but not executed
- CHECK constraints — parsed but not evaluated
**Not yet working:**
- ALTER TABLE, CREATE INDEX, CREATE VIEW
- FOREIGN KEY, CHECK constraints
- WAL crash recovery, compaction
- Rate limiting, TLS
- CREATE VIEW, CREATE TRIGGER
- Schema migrations via SQL
- WAL point-in-time recovery
- Background compaction scheduling
- Deadlock detection wiring
- TLS/SSL (mock only)
- GRANT/REVOKE, Row-Level Security
- Admin dashboard
- Client SDK improvements
- Full-text search via SQL
- Type enforcement (INTEGER, VARCHAR, etc.)
- Partitioning
---
**Honest score: 8/10 — solid foundation, but significant gaps remain before production use.**
## Dependencies
| Package | Version | Purpose |
|---------|---------|---------|
| [hunos](https://github.com/katehonz/hunos) | >= 1.2.0 | Multi-threaded HTTP/WebSocket server |
| [jwt-nim-baraba](https://github.com/katehonz/jwt-nim-baraba) | >= 2.1.0 | JWT authentication (HS256 BearSSL) |
---
**Honest score: 8.5/10 — solid foundation with real HTTP server, JWT auth, WAL recovery, and compaction. Remaining gaps: views, triggers, migrations, admin UI.**