jOOQ tip: don’t convert JSONB to a String
A few weeks ago, while investigating possible performance improvements for Kestra‘s JDBC backend, I noticed that a method we were using to map an entity to be persisted in the database into its JSONB representation was taking up a lot of time in our CPU profiles. In the following flame graph, we can see that the JdbcQueue.map() method accounts for more than 21% of the samples and the Repository.map() method for 3.2% of the samples of a CPU profile obtained…