| id | variant |
|---|---|
| 1 | Green, 128GB |
| 2 | Green, 256GB |
| 3 | Red, 128GB |
| 4 | Red, 256GB |
All products have id, so all need to be update.
| id | variant |
|---|---|
| 1 | Green, 128 GB, 2GB |
| 2 | Green, 256 GB, 2GB |
| 3 | Red, 128 GB, 2GB |
| 4 | Red, 256 GB, 2GB |
Products with id = 0 are new and need to be created, others updated.
| id | variant |
|---|---|
| 1 | Green, 128GB, 2GB |
| 2 | Green, 256GB, 2GB |
| 0 | Green, 512GB, 2GB |
| 3 | Red, 128GB, 2GB |
| 4 | Red, 256GB, 2GB |
| 0 | Red, 512GB, 2GB |
Products with id = 0 are new and need to be created, others updated.
| id | variant |
|---|---|
| 1 | Green, 128GB, 2GB |
| 2 | Green, 256GB, 2GB |
| 3 | Red, 128GB, 2GB |
| 4 | Red, 256GB, 2GB |
0 | Green, 128GB, 4GB 0 | Green, 256GB, 4GB 0 | Red, 128GB, 4GB 0 | Red, 256GB, 4GB