# Database Migrations

## Running Migrations

### Prerequisites
1. Ensure PostgreSQL is running
2. Create the database if it doesn't exist:
   ```bash
   psql -U postgres -c "CREATE DATABASE jd_book_uploader;"
   ```
3. Ensure your `.env` or `.env.local` file in the backend directory has the correct database credentials

### Run Migration

```bash
cd backend
./scripts/run_migration.sh
```

Or manually:
```bash
cd backend
export $(grep -v '^#' .env.local | grep -v '^$' | xargs)
PGPASSWORD="$DB_PASSWORD" psql -h "$DB_HOST" -p "$DB_PORT" -U "$DB_USER" -d "$DB_NAME" -f migrations/001_create_tables.sql
```

### Verify Schema

```bash
cd backend
./scripts/verify_schema.sh
```

This will show:
- Table structures for `books` and `stationery`
- All indexes created on both tables

## Migration Files

- `001_create_tables.sql` - Creates books and stationery tables with indexes