Example 43.6. A PL/pgSQL Trigger Function for Maintaining a Summary Table

Hello!

Example 43.6 on the page https://www.postgresql.org/docs/16/plpgsql-trigger.html has two tables called main. But it seems that the table time_dimension is not used any further, it's a bit strange for one of main tables of the example. Am I missing something, or should this example be extended (or reduced)?