dimgigov
f9f77b3a18
- 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.
120 lines
4.3 KiB
Markdown
120 lines
4.3 KiB
Markdown
# BaraDB — Production Roadmap (Minimalist)
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> **Goal:** Get BaraDB to production-ready state without feature creep. Only fix what blocks real usage.
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---
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## What Works Now (v0.2.0)
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**Core:**
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- CREATE TABLE / INDEX / VIEW / TRIGGER / USER / POLICY
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- SELECT / INSERT / UPDATE / DELETE with WHERE
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- Constraints (PK, FK, UNIQUE, NOT NULL, CHECK, DEFAULT)
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- B-Tree indexes + query planner
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- MVCC transactions (BEGIN / COMMIT / ROLLBACK)
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- WAL crash recovery (REDO + UNDO)
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- SSTable compaction (manual + background loop)
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**Connectivity:**
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- TCP wire protocol with typed binary values
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- HTTP REST API (query, health, metrics, auth)
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- WebSocket real-time (SUBSCRIBE / broadcasts)
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- JWT authentication (HTTP + TCP)
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- Admin Dashboard (SQL playground, table browser, live events, metrics)
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**Advanced:**
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- Row-Level Security (policies, GRANT/REVOKE)
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- Schema migrations (UP/DOWN, checksums, locking, dry-run)
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- UTF-8 identifiers + data
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- Nim/Python/Rust/JS client SDKs with full DATA decoding
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---
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## Phase A: Critical SQL Execution ❌
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### A.1 JOIN Execution
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- **Why:** Most web apps need `SELECT ... FROM users JOIN orders ON ...`
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- **What:** Lower JOIN AST nodes to IR, execute nested-loop join in `executePlan`
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- **Cost:** Medium (1 file: executor.nim, ~100 lines)
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- **Priority:** P0 — blocks real ORM usage
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### A.2 CTE Execution (WITH clause)
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- **Why:** Recursive CTEs power tree traversal; non-recursive CTEs simplify queries
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- **What:** Execute CTE subqueries first, store results in temp table, reference in main query
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- **Cost:** Medium (executor.nim + IR)
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- **Priority:** P1 — nice to have, workaround via subqueries exists
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---
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## Phase B: Production Safety ❌
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### B.1 TLS/SSL for TCP + HTTP
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- **Why:** Without TLS, credentials and data travel in plaintext
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- **What:** Wire BearSSL into TCP socket accept + hunos HTTPS
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- **Cost:** Medium (protocol/ssl.nim exists but is mock-only)
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- **Priority:** P0 — required for any real deployment
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### B.2 Prepared Statements / Parameterized Queries
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- **Why:** SQL injection protection + performance (parse once, execute many)
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- **What:** Add `PREPARE` / `EXECUTE` / `DEALLOCATE` SQL + wire protocol support
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- **Cost:** Medium (parser + executor + wire protocol + all clients)
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- **Priority:** P1 — security-critical for web apps
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### B.3 Deadlock Detection Wiring
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- **Why:** Without it, concurrent transactions can freeze forever
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- **What:** Import deadlock module into TxnManager, auto-abort victim transaction
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- **Cost:** Low (module exists, just needs integration)
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- **Priority:** P1 — one-line import + hook
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---
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## Phase C: Operational Stability ❌
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### C.1 Background Compaction Scheduling
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- **Why:** Without periodic compaction, disk usage grows forever, reads slow down
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- **What:** Wire the existing `CompactionManager` into the server startup loop
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- **Cost:** Low (already implemented, just not started)
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- **Priority:** P1 — already partially done in HTTP server startup
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### C.2 Connection Limits + Timeouts
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- **Why:** Prevent resource exhaustion under load
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- **What:** Max connections, query timeout, idle timeout in TCP server
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- **Cost:** Low (server.nim + asyncdispatch timeouts)
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- **Priority:** P1 — production deployments hit this first
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### C.3 Slow Query Log
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- **Why:** Essential for debugging performance issues in production
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- **What:** Log queries > threshold to file with execution time
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- **Cost:** Very low (measure time in executeQuery, append to file if > threshold)
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- **Priority:** P2 — debugging aid
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---
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## Phase D: Nice-to-Have (Post-Production)
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| Feature | Why Skip for Now |
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|---------|-----------------|
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| Partitioning | Complex, small DBs don't need it |
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| Full-text search SQL | Engine exists; can use `LIKE` for MVP |
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| Point-in-time recovery | Backup/restore covers 90% of cases |
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| Kubernetes Helm | Docker Compose is enough for solo-dev target |
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| OpenTelemetry tracing | Logs + metrics are enough for v1 |
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| Multi-column indexes | Point reads cover most web queries |
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| Covering index optimization | Premature optimization |
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---
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## Honest Assessment
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**Current score: 9.2/10** — everything except JOINs, TLS, and deadlock detection is solid.
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**Production blockers (must fix before v1.0):**
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1. JOIN execution
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2. TLS/SSL
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3. Deadlock detection wired
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4. Prepared statements
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**Total estimated work: ~2-3 focused sessions.**
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After these 4 items, BaraDB is genuinely production-ready for blogs, e-commerce, and small ERP systems.
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