diff --git a/doc/src/sgml/catalogs.sgml b/doc/src/sgml/catalogs.sgml
index 37c6a2bb73..43cccb43d6 100644
--- a/doc/src/sgml/catalogs.sgml
+++ b/doc/src/sgml/catalogs.sgml
@@ -1892,8 +1892,8 @@ SCRAM-SHA-256$<iteration count>:&l
- The catalog pg_class catalogs tables and most
- everything else that has columns or is otherwise similar to a
+ The catalog pg_class describes tables and
+ other objects that have columns or are otherwise similar to a
table. This includes indexes (but see also pg_index),
sequences (but see also <iteration count>:&l
views, materialized views, composite types, and TOAST tables;
see relkind.
Below, when we mean all of these kinds of objects we speak of
- relations. Not all columns are meaningful for all relation
- types.
+ relations. Not all of pg_class's
+ columns are meaningful for all relation kinds.