I had a project last year where DB names were autogenerated per tenant, with the tenant ID being a UUID, so you're left with 63-36=27 characters. Starts to feel

I had a project last year where DB names were autogenerated per tenant, with the tenant ID being a UUID, so you're left with 63-36=27 characters. Starts to feel narrow. (Putting tenant_id as a column was not an option because for each tenant, a third-party software was started that wanted to have its own DB.)