提交 abecf1af 编写于 作者: B Bruce Momjian

Add documentation:

>>>I think a more accurate description would be "permissions not
>>>inherited by children," and that isn't necessarily a bug.
>>
>>I agree it may not be a bug - but it's more than the permissions not
>>being inherited: the parent is affected.
>
>
> Not really, once you understand what's happening.  Unless you use
> FROM ONLY, selecting from the parent selects from the parent *and*
> its children.  The parent itself isn't affected, as queries with
> FROM ONLY should demonstrate.  I understand what you're saying --
> that there's an apparent effect on the parent -- but there really
> isn't.

Sean Burlington
上级 f810cfb2
<!-- $PostgreSQL: pgsql/doc/src/sgml/ddl.sgml,v 1.43 2005/08/12 01:35:53 tgl Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/ddl.sgml,v 1.44 2005/08/13 01:55:41 momjian Exp $ -->
<chapter id="ddl">
<title>Data Definition</title>
......@@ -1122,6 +1122,17 @@ SELECT name, altitude
support this <quote>ONLY</quote> notation.
</para>
<note>
<title>Inheritance and Permissions</title>
<para>
Because permissions are not inherited automatically a user attempting to access
a parent table must either have at least the same permission for the child table
or must use the <quote>ONLY</quote> notation. If creating a new inheritance
relationship in an existing system be careful that this does not create problems.
</para>
</note>
<note>
<title>Deprecated</title>
<para>
......
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