Clean up useless "skipping" messages for VACUUM/ANALYZE.

When VACUUM/ANALYZE are run on an entire database, it warns of
skipping relations for which the user doesn't have sufficient
privileges. That only makes sense for tables, so skip such messages
for indexes, etc.

Reviewed-by: Nathan Bossart
Discussion: https://postgr.es/m/c0a85c2e83158560314b576b6241c8ed0aea1745.camel%40j-davis.com

src/backend/commands/vacuum.c

@@ -906,10 +906,6 @@ get_all_vacuum_rels(int options)
 		MemoryContext oldcontext;
 		Oid			relid = classForm->oid;
 
-		/* check permissions of relation */
-		if (!vacuum_is_permitted_for_relation(relid, classForm, options))
-			continue;
-
 		/*
 		 * We include partitioned tables here; depending on which operation is
 		 * to be performed, caller will decide whether to process or ignore
@@ -920,6 +916,10 @@ get_all_vacuum_rels(int options)
 			classForm->relkind != RELKIND_PARTITIONED_TABLE)
 			continue;
 
+		/* check permissions of relation */
+		if (!vacuum_is_permitted_for_relation(relid, classForm, options))
+			continue;
+
 		/*
 		 * Build VacuumRelation(s) specifying the table OIDs to be processed.
 		 * We omit a RangeVar since it wouldn't be appropriate to complain