Clarify wording of foreign key documentation to mention null entries as

not matching the primary key. Report from Marek.Balgar@seznam.cz
2011-10-12 16:58:39 -04:00 · 2011-10-12 16:58:39 -04:00 · f2b36d8e10
commit f2b36d8e10
parent 484af9b376
1 changed files with 1 additions and 1 deletions
--- a/doc/src/sgml/ddl.sgml
+++ b/doc/src/sgml/ddl.sgml
@ -688,7 +688,7 @@ CREATE TABLE orders (
    quantity integer
 );
 </programlisting>
-    Now it is impossible to create orders with
+    Now it is impossible to create orders with non-NULL
    <structfield>product_no</structfield> entries that do not appear in the
    products table.
   </para>