pg_publication_rel #
   The catalog pg_publication_rel contains the
   mapping between relations and publications in the database.  This is a
   many-to-many mapping.  See also Section 54.17
   for a more user-friendly view of this information.
  
Table 53.42. pg_publication_rel Columns
Column Type Description  | 
|---|
        Row identifier  | 
        Reference to publication  | 
        Reference to relation  | 
       Expression tree (in   | 
        
       This is an array of values that indicates which table columns are
       part of the publication.  For example, a value of   |