GearBox/.planning/phases/14-postgresql-migration/14-01-SUMMARY.md

phase, plan, subsystem, tags, requires, provides, affects, tech-stack, key-files, key-decisions, patterns-established, requirements-completed, duration, completed

phase	plan	subsystem	tags	requires	provides	affects	tech-stack	key-files	key-decisions	patterns-established	requirements-completed	duration	completed
14-postgresql-migration	01	database	postgresql drizzle-orm pglite postgres-js migration	phase provides 13-setup-impact-preview Complete SQLite-based application	PostgreSQL schema definitions (13 tables via pg-core) postgres.js database connection with DATABASE_URL PGlite-based async test helper Initial PostgreSQL migration (drizzle-pg/) Async seed function	14-02 14-03 14-04 14-05 14-06	added patterns postgres (postgres.js driver) @electric-sql/pglite pgTable schema definitions async createTestDb() with PGlite DATABASE_URL environment variable for connection	created modified drizzle-pg/0000_fuzzy_shiva.sql src/db/schema.ts src/db/index.ts src/db/migrate.ts src/db/seed.ts drizzle.config.ts tests/helpers/db.ts package.json biome.json	Used postgres.js (not pg/node-postgres) as PostgreSQL driver for Drizzle ORM PGlite for in-memory test databases replacing bun:sqlite :memory: Migration output directory drizzle-pg/ separate from old drizzle/ directory	All schema tables use pgTable with serial primary keys (except settings/sessions with text PKs) Timestamps use native timestamp type with defaultNow() instead of integer mode:timestamp Test databases created via async createTestDb() returning PGlite-backed Drizzle instance	DB-01 DB-03	3min	2026-04-04

Phase 14 Plan 01: Database Foundation Summary

PostgreSQL schema with 13 pgTable definitions, postgres.js connection, PGlite test infrastructure, and initial migration

Performance

• Duration: 3 min
• Started: 2026-04-04T10:15:43Z
• Completed: 2026-04-04T10:19:11Z
• Tasks: 2
• Files modified: 10

Accomplishments

• Rewrote all 13 table definitions from sqliteTable to pgTable with correct type mappings (serial, timestamp, doublePrecision, boolean)
• Established postgres.js connection with DATABASE_URL environment variable
• Created async PGlite test helper that applies migrations and seeds in-memory
• Generated initial PostgreSQL migration with 13 CREATE TABLE statements
• Zero SQLite references remain in database layer files

Task Commits

Each task was committed atomically:

1. Task 1: Install dependencies and rewrite schema + DB config files - 3724cf8 (feat)
2. Task 2: Rewrite test helper and generate initial PostgreSQL migration - 3bf1fd7 (feat)

Files Created/Modified

• src/db/schema.ts - 13 PostgreSQL table definitions using drizzle-orm/pg-core
• src/db/index.ts - postgres.js connection with DATABASE_URL
• src/db/migrate.ts - postgres-js migrator targeting drizzle-pg/
• src/db/seed.ts - Async seed function for default category
• drizzle.config.ts - PostgreSQL dialect config with drizzle-pg/ output
• tests/helpers/db.ts - Async PGlite-backed createTestDb()
• package.json - Added postgres, @electric-sql/pglite; removed better-sqlite3
• biome.json - Added drizzle-pg/ to ignore list
• drizzle-pg/0000_fuzzy_shiva.sql - Initial migration with 13 tables

Decisions Made

• Used postgres.js driver (lightweight, ESM-native, good Drizzle integration) over node-postgres
• PGlite creates ephemeral in-memory Postgres for tests -- no external DB needed
• Separate migration directory (drizzle-pg/) to avoid conflicts with old SQLite migrations (drizzle/)
• Added drizzle-pg/ to biome ignore since it contains generated files

Deviations from Plan

Auto-fixed Issues

1. [Rule 3 - Blocking] Added drizzle-pg/ to biome ignore list

• Found during: Task 2 (migration generation)
• Issue: Generated drizzle-pg/ JSON snapshot failed biome formatting (2-space vs tab indent)
• Fix: Added "!drizzle-pg" to biome.json files.includes array (matching existing "!drizzle" pattern)
• Files modified: biome.json
• Verification: bun run lint passes clean
• Committed in: 3bf1fd7 (Task 2 commit)

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Total deviations: 1 auto-fixed (1 blocking) Impact on plan: Necessary to maintain passing lint. No scope creep.

Issues Encountered

• PGlite smoke test exits with code 99 when no explicit process.exit(0) is called -- this is a known PGlite cleanup behavior, not a real error. Adding explicit exit resolves it.

User Setup Required

None - no external service configuration required.

Next Phase Readiness

• Schema and test infrastructure ready for service layer conversion (Plan 14-02)
• All services can now be updated to use async Drizzle operations against PostgreSQL types
• PGlite test helper available for all test files to migrate to

Self-Check: PASSED

All 7 key files verified present. Both task commits (3724cf8, 3bf1fd7) verified in git log.

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Phase: 14-postgresql-migration Completed: 2026-04-04