Duplicate detection: don't upload a photo if a larger photo with the exact same datetime already exists

[cuu508]

I'm looking to upload photos exported via Google Takeout into Immich. The problem is, some of these photos I already have in Immich, uploaded directly from my phone, in their original quality. The Takeout export has some of the same photos, but in reduced quality. If I upload them as-is, I would have many, many duplicates in the end.

Would it be possible to have an optional feature behind a flag, where for each photo to be uploaded immich-go checks if a photo with the exact same timestamp already exists.

• If a photo exists, and is larger, then do not upload the smaller version
• If a photo exists, and is smaller, then perhaps replace it with the larger version

Would something like this make sense (and be technically feasible)? Or perhaps there is an existing way to avoid duplicates?

I'm aware of the work-in-progress Immich duplicate detection feature – this one, when ready, would work on already uploaded photos. It would be nice to be able to avoid duplicates in the first place, during upload.

[cuu508]

Oops, looking at my own Immich library, there are many instances where multiple photos are taken in the same second (some would be JPG+RAW pairs, but also photos shot in burst mode, or just in quick succession). So it's not going to be quite as simple as I had imagined :-/

[simulot]

I'm currently focused on another part of the project. I'll come back on this soon