diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 59d308913c3..f06f289d2d9 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -1,5 +1,5 @@
@@ -162,6 +162,14 @@ PostgreSQL documentation
+
+
+ The operators AND and OR are
+ commutative, that is, you can switch the left and right operand
+ without affecting the result. But see for more information about the
+ order of evaluation of subexpressions.
+
diff --git a/doc/src/sgml/syntax.sgml b/doc/src/sgml/syntax.sgml
index 372aca2ca71..8d23a3e3548 100644
--- a/doc/src/sgml/syntax.sgml
+++ b/doc/src/sgml/syntax.sgml
@@ -1,5 +1,5 @@
@@ -1216,7 +1216,7 @@ SELECT name, (SELECT max(pop) FROM cities WHERE cities.state = states.name)
-
+
Expression Evaluation