Add support for large object permissions in Postgres

utils.sh

@@ -380,6 +380,11 @@ function create_readonly_postgres_user() {
                 GRANT SELECT ON ALL SEQUENCES IN SCHEMA $SCHEMA TO $RUSER_NAME;
                 GRANT EXECUTE ON ALL FUNCTIONS IN SCHEMA $SCHEMA TO $RUSER_NAME;" "$DATABASE" \
                 || { display_error "Error granting USAGE on schema $SCHEMA"; return 8; }
+            # grant SELECT on all large objects
+            for LOID in $( PGPASSWORD="$PG_PASS" psql -h "$PG_HOST" -U "$PG_USER" -c "SELECT DISTINCT loid FROM pg_catalog.pg_largeobject" -Xt "$DATABASE" ); do
+                PGPASSWORD="$PG_PASS" psql -h "$PG_HOST" -U "$PG_USER" -c "GRANT SELECT ON LARGE OBJECT $LOID TO $RUSER_NAME" "$DATABASE" \
+                    || { display_error "Error granting SELECT on large objects of schema $SCHEMA"; return 9; }
+            done
         done
     done