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Clarify wording of foreign key documentation to mention null entries as

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not matching the primary key.

Report from Marek.Balgar@seznam.cz
This commit is contained in:
Bruce Momjian 2011-10-12 16:58:39 -04:00
parent 484af9b376
commit f2b36d8e10
1 changed files with 1 additions and 1 deletions
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doc/src/sgml/ddl.sgml
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@ -688,7 +688,7 @@ CREATE TABLE orders (
quantity integer quantity integer
); );
</programlisting> </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 <structfield>product_no</structfield> entries that do not appear in the
products table. products table.
</para> </para>