PostgreSQL Catalogs:
Table Attributes by Schema & Table

This is an example of a three level report with two variables, schema name and table name.
This report also shows fun with colors and tables.

Relation Type Key
  Table   View   Index   Sequence   Special

Schema: pg_catalog
        
Table: pg_namespace
                 
Column Type Modifiers
nspname name NOT NULL
nspowner integer NOT NULL
nspacl aclitem[]