> Speaker pitches for using embedded in-proc DBs inside AWS Lambda functions. Not practical to install Oracle RDBMS in something that only runs for 100msec.

It's not only unpractical, but hard to get it done. Recently tried to run Postgres in an AWS Lambda to create an anonymized DB dump. It was so painful that I gave up and created an access restricted database to do the anonymization instead. An in-memory mode for Postgres that would be as easy to run as sqlite or duckdb would be so useful for things where one can not replace it with either of them (sql dumps, testing).