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I think it's important that it's actually documented that they can add

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primary keys after the fact!

Also, we need to add regression tests for alter table / add primary key
and alter table / drop constraint.  These shouldn't be added until 7.3
tho
methinks...

Chris
This commit is contained in:
Bruce Momjian
2002-02-17 11:50:09 +00:00
parent a966ac1df0
commit bf4507e3af
1 changed files with 10 additions and 1 deletions
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11
doc/src/sgml/ref/alter_table.sgml
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@ -1,5 +1,5 @@
<!-- <!--
$Header: /cvsroot/pgsql/doc/src/sgml/ref/alter_table.sgml,v 1.36 2002/02/16 23:45:48 momjian Exp $ $Header: /cvsroot/pgsql/doc/src/sgml/ref/alter_table.sgml,v 1.37 2002/02/17 11:50:09 momjian Exp $
PostgreSQL documentation PostgreSQL documentation
--> -->
@ -295,6 +295,15 @@ ALTER TABLE distributors ADD CONSTRAINT dist_id_zipcode_key UNIQUE (dist_id, zip
</para> </para>
</refsect1> </refsect1>
<para>
To add an automatically named primary key constraint to a table, noting
that a table can only ever have one primary key:
<programlisting>
ALTER TABLE distributors ADD PRIMARY KEY (dist_id);
</programlisting>
</para>
</refsect1>
<refsect1 id="R1-SQL-ALTERTABLE-3"> <refsect1 id="R1-SQL-ALTERTABLE-3">
<title> <title>
Compatibility Compatibility