This example needs an existing database/table.
To help make that easier there is a createdb.sh script that will try to connect by default to your localhost postgres db with user postgres on port 5432.
The script will ask for the password for that user and use psql to create a new database called exampledb with a test table. If any of those bold need to change, you can do so in the script. You will just need to also change them in the mainVert.kt file.