Mysql or Postgres with Knime

Hello,

We are planing to set up a massive local database on a knime machine for raw storage. Lots of large inserts, writes, raw JSON (I know it’s not ideal), and more. Multiple writes at the same time, advanced joins etc. Based on my research, it seems Postgres is better for this. How about Knime nodes interactions? Is there a benefit (better code, more functions, etc.) to either?

Thank you