Let’s pretend our database has recorded two attributes for a user. The user’s e-mail and the users username. The username is required to be the e-mail for the user. Due to a design decision, e-mails will no longer be recorded. As such we need to depricate the e-mail attribute and merge it to our username attribute to ensure all e-mails represent usernames.

In responding to a recent Stack Overflow question, I ran into a few hitches getting MySQL and PostgreSQL working as backend storages. As a reference, I followed this section of the documentation, to setup MySQL and PostgreSQL storage.

Below I am collecting an extensive, open ended list of resources. From the Datomic docs, “getting started” materials from the Datomic community, to specific resources.

This is a personal blog. The opinions expressed here represent my own and not those of my employer.