# Database Migrations

FusionAGI uses a lightweight migration system for schema changes.

## Structure

```
migrations/
├── README.md
├── versions/
│   └── 001_initial_schema.sql
└── migrate.py
```

## Usage

```bash
# Run all pending migrations
python -m migrations.migrate up

# Rollback the last migration
python -m migrations.migrate down

# Show migration status
python -m migrations.migrate status
```

## Creating a Migration

1. Create a new SQL file in `migrations/versions/`:
   ```
   NNN_description.sql
   ```

2. Include both `-- UP` and `-- DOWN` sections:
   ```sql
   -- UP
   CREATE TABLE example (...);

   -- DOWN
   DROP TABLE IF EXISTS example;
   ```

## Notes

- Migrations run in numeric order (001, 002, etc.)
- Each migration is tracked in a `_migrations` table
- For production, consider using Alembic with SQLAlchemy