diff --git a/doc/src/sgml/ref/alter_foreign_table.sgml b/doc/src/sgml/ref/alter_foreign_table.sgml
index 3cb6f08fcf..115ca5c3d7 100644
--- a/doc/src/sgml/ref/alter_foreign_table.sgml
+++ b/doc/src/sgml/ref/alter_foreign_table.sgml
@@ -173,7 +173,7 @@ ALTER FOREIGN TABLE [ IF EXISTS ] <replaceable class="parameter">name</replaceab
      <para>
       This form adds a new constraint to a foreign table, using the same
       syntax as <link linkend="sql-createforeigntable"><command>CREATE FOREIGN TABLE</command></link>.
-      Currently only <literal>CHECK</literal> constraints are supported.
+      Currently both <literal>CHECK</literal> and <literal>NOT NULL</literal> constraints are supported.
      </para>
 
      <para>
diff --git a/doc/src/sgml/ref/create_foreign_table.sgml b/doc/src/sgml/ref/create_foreign_table.sgml
index dc4b907599..a73b6212ff 100644
--- a/doc/src/sgml/ref/create_foreign_table.sgml
+++ b/doc/src/sgml/ref/create_foreign_table.sgml
@@ -43,7 +43,7 @@ CREATE FOREIGN TABLE [ IF NOT EXISTS ] <replaceable class="parameter">table_name
 <phrase>where <replaceable class="parameter">column_constraint</replaceable> is:</phrase>
 
 [ CONSTRAINT <replaceable class="parameter">constraint_name</replaceable> ]
-{ NOT NULL |
+{ NOT NULL [ NO INHERIT ] |
   NULL |
   CHECK ( <replaceable class="parameter">expression</replaceable> ) [ NO INHERIT ] |
   DEFAULT <replaceable>default_expr</replaceable> |
@@ -52,6 +52,7 @@ CREATE FOREIGN TABLE [ IF NOT EXISTS ] <replaceable class="parameter">table_name
 <phrase>and <replaceable class="parameter">table_constraint</replaceable> is:</phrase>
 
 [ CONSTRAINT <replaceable class="parameter">constraint_name</replaceable> ]
+  NOT NULL <replaceable class="parameter">column_name</replaceable> [ NO INHERIT ] |
 CHECK ( <replaceable class="parameter">expression</replaceable> ) [ NO INHERIT ]
 
 <phrase>and <replaceable class="parameter">partition_bound_spec</replaceable> is:</phrase>
@@ -203,10 +204,10 @@ WITH ( MODULUS <replaceable class="parameter">numeric_literal</replaceable>, REM
    </varlistentry>
 
    <varlistentry>
-    <term><literal>NOT NULL</literal></term>
+    <term><literal>NOT NULL</literal> [ NO INHERIT ] </term>
     <listitem>
      <para>
-      The column is not allowed to contain null values.
+      The column is not allowed to contain null values. <literal>NO INHERIT</literal> makes the not-null constraint not propagate to child tables.
      </para>
     </listitem>
    </varlistentry>
diff --git a/doc/src/sgml/ref/create_table.sgml b/doc/src/sgml/ref/create_table.sgml
index f9a098e77a..3d3a84a405 100644
--- a/doc/src/sgml/ref/create_table.sgml
+++ b/doc/src/sgml/ref/create_table.sgml
@@ -61,7 +61,7 @@ CREATE [ [ GLOBAL | LOCAL ] { TEMPORARY | TEMP } | UNLOGGED ] TABLE [ IF NOT EXI
 <phrase>where <replaceable class="parameter">column_constraint</replaceable> is:</phrase>
 
 [ CONSTRAINT <replaceable class="parameter">constraint_name</replaceable> ]
-{ NOT NULL |
+{ NOT NULL [ NO INHERIT ]  |
   NULL |
   CHECK ( <replaceable class="parameter">expression</replaceable> ) [ NO INHERIT ] |
   DEFAULT <replaceable>default_expr</replaceable> |
@@ -815,10 +815,11 @@ WITH ( MODULUS <replaceable class="parameter">numeric_literal</replaceable>, REM
    </varlistentry>
 
    <varlistentry id="sql-createtable-parms-not-null">
-    <term><literal>NOT NULL</literal></term>
+    <term><literal>NOT NULL [ NO INHERIT ] </literal></term>
     <listitem>
      <para>
       The column is not allowed to contain null values.
+      <literal>NO INHERIT</literal> makes the not-null constraint not propagate to child tables.
      </para>
     </listitem>
    </varlistentry>
