richard coleman <rcoleman.ascentgl@xxxxxxxxx> writes: > Thanks for that. It still seems rather weird that there isn't a more > straightforward way to get access to that information. You could just read the system catalog documentation: https://www.postgresql.org/docs/current/catalogs.html psql's queries are mostly useful as a shortcut to finding out where to look. > Also the SQL generated by psql -E doesn't seem to work on earlier versions > of PostgreSQL: Yeah, you'd need to try it against a server of the vintage you care about. (Also read the documentation of the correct version.) > Are you saying that the only place this information is stored > is in an array in the datacl column of the pg_catalog.pg_database table? Precisely. > If that's the case then I am going to be forced to either write code to > parse out that array, or write a looping union of multiple > "has_database_privilege()" calls. You were already pointed at aclexplode(), which might help. select datname, a.* from pg_database, aclexplode(datacl) a; regards, tom lane