[skingkong]

Yeah in this type of architecture there is some sort of join required. Interestingly, @maycotte talking about the Molecula feature store – it serves real-time and historical features in the same storage layer. Significant performance gains with that approach.

[jamesblonde]

If you want to reuse features, and not write a new pipeline for every model, you need JOINs. Both for the online and offline feature stores.