Release: v0.15.0

• Allow multiple connections to the database in a single test case, which is useful for testing the transaction behavior. This can be achieved by attaching a connection foo record before the query or statement.
  • (parser) Add Record::Connection.
  • (runner) Breaking change: Since the runner may establish multiple connections at runtime, Runner::new now takes a impl MakeConnection, which is usually a closure that returns a try-future of the AsyncDB instance.
  • (bin) The connection to the database is now established lazily on the first query or statement.