Join collections with database from MongoDB

I am using Metabase at work and i have an issue. When i use my data imported as a csv, i can join tables to create a model with multiples tables. But when i use my data imported with my collection from MongoDB, This feature doesnt appear anymore.

If someone have an idea of what I can do to counter this issue, it would be great :slight_smile:

You’re running an old version of Metabase, please upgrade to the most recent version

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