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flatrender/backend/db/README.md
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# FlatRender V2 — Database Schemas
PostgreSQL 15+. Single database, one schema per microservice.
## Run order
Apply migrations in numerical order:
```bash
psql -d flatrender -f migrations/00_setup.sql
psql -d flatrender -f migrations/01_identity_tenants.sql
psql -d flatrender -f migrations/02_identity_users.sql
psql -d flatrender -f migrations/03_identity_billing.sql
psql -d flatrender -f migrations/04_identity_gamification.sql
psql -d flatrender -f migrations/05_content_taxonomy.sql
psql -d flatrender -f migrations/06_content_projects.sql
psql -d flatrender -f migrations/07_content_scenes.sql
psql -d flatrender -f migrations/08_content_characters_presets.sql
psql -d flatrender -f migrations/09_content_cms.sql
psql -d flatrender -f migrations/10_studio_saved_projects.sql
psql -d flatrender -f migrations/11_render_nodes.sql
psql -d flatrender -f migrations/12_render_jobs.sql
psql -d flatrender -f migrations/13_file_manager.sql
psql -d flatrender -f migrations/14_notification.sql
```
## Schemas
| Schema | Owner Service | Purpose |
|---|---|---|
| `identity` | Identity Service (.NET) | tenants, users, auth, plans, payments, gamification |
| `content` | Content Service (.NET) | templates, scenes, presets, blogs, CMS |
| `studio` | Studio Service (.NET) | user's saved projects + audio (music/voiceover/sfx) |
| `render` | Render Orchestrator (Go) | jobs, nodes, frame jobs, snapshots, exports |
| `file_mgr` | File Service (Go) | user files, folders, quotas, cleanup |
| `notification` | Notification Service (Go) | in-app, push, email, SMS, telegram |
## Cross-schema design
Schemas are **loosely coupled**. Where it matters for integrity (within a
service), FKs are used. Across services, FKs are deliberately omitted so
services can evolve independently — referential integrity is enforced
via service code and events.
### Hard FKs across schemas (intentional)
- `identity.earned_gifts.notification_id``notification.notifications.id`
Everything else uses **soft references** (column documented but no FK).
## Multi-tenancy
`identity.tenants` is the root of multi-tenancy. The default FlatRender
tenant has UUID `00000000-0000-0000-0000-000000000001`.
Every user, project, render job, file, and notification carries a
`tenant_id`. Resellers (B2B API customers) are tenants. White-label
branding, API keys, webhooks, and usage metering all hang off
`identity.tenants.*`.
## New features (vs V1)
- **Multi-tenancy / Reseller API**: `identity.tenants`, `tenant_branding`,
`tenant_api_keys`, `tenant_webhooks`, `tenant_usage_daily`
- **Voiceover support**: `studio.saved_projects.voiceover_*`,
`render.render_jobs.has_voiceover`
- **Per-track volume**: `music_volume`, `sfx_volume`, `voiceover_volume`
- **Scene snapshots**: `render.snapshots` with cache key
- **AE crash tracking**: `render.node_crashes` + auto-recovery
- **Frame repair jobs**: `render.frame_repair_jobs`
- **AEP local cache on nodes**: `render.node_template_cache` (LRU)
- **SVG color previews**: `content.template_svg_previews` (drop image → traced SVG)
- **PWA push subscriptions**: `identity.push_subscriptions`
- **MFA**: `identity.mfa_factors`
- **Multipart uploads**: `file_mgr.upload_sessions`
- **Cleanup scheduler**: `file_mgr.cleanup_schedules`
- **Per-user / per-channel notification preferences**:
`notification.notification_preferences`
## Partitioning
Time-series tables are partitioned monthly (initial partition for
2026-01 created; ops creates new ones via cron):
- `identity.tenant_api_request_logs`
- `render.node_health_logs`
## Service user grants
Each microservice connects with its own DB role limited to its schema.
See top of `00_setup.sql` for the recipe.