Introduction In this article, we are going to see how we can store Java Map entity attributes in JSON columns when using JPA, Hibernate, and the Hypersistence Utils project. While you can also persist Java Map entity attributes in PostgreSQL HStore columns, a JSON column type is a much more common option, especially since it works with other relational databases, like Oracle, SQL Server, or MySQL. As you already have seen, the Hypersistence Utils project allows you to map a JSON column type to a wide variety of JPA entity attributes, like… Read More