DAML database integration

[Stephen]

Since you are using SDK 2.1.1, I recommend that you move away from Daml-on-SQL, to a Canton setup with Postgres as backend, as soon as possible. Daml-on-SQL is no longer supported. See this previous thread:

What became of `daml-on-sql.jar` in 2.x.x?

To run Daml apps built with the SDK 1.x.x with database backing, there used to be a ledger implementation daml-on-sql.jar (cf. e.g., Release 1.18.0 · digital-asset/daml · GitHub) This doesn’t exist in the 2.x.x releases anymore (cf. e.g. Release 2.1.0 · digital-asset/daml · GitHub). What would I use instead to run a Daml 2.x app in a ledger with database backing?