Re: Do we want SYNONYMS? - Mailing list pgsql-general

From Dmitriy Igrishin
Subject Re: Do we want SYNONYMS?
Date
Msg-id AANLkTi=1wJX=DorCnrPaiuSmRD5ejAmSJt48q_64r404@mail.gmail.com
Whole thread Raw
In response to Re: Do we want SYNONYMS?  ("Daniel Verite" <daniel@manitou-mail.org>)
Responses Re: Do we want SYNONYMS?
List pgsql-general
Hey Daniel,

Again link to oracle.com...

During this thread I believe that synonyms gives nothing
except confusion and mess.

2010/12/7 Daniel Verite <daniel@manitou-mail.org>
       Tom Lane wrote:

> Taken at face value from a Postgres perspective, these statements seem
> to imply that different ownership and permissions apply to a synonym
> than to its referenced object; which seems like a completely horrid idea
> from a security standpoint.  But maybe they are only trying to say that
> a synonym hides which *schema* the referenced object is in, and that is
> tantamount to hiding the owner if you have the mindset that owner ==
> schema.  Can anyone elucidate on just what is behind those statements?

From
http://download.oracle.com/docs/cd/B28359_01/network.111/b28531/authorization
.htm#i1009141


[quote]
A schema object and its synonym are equivalent with respect to privileges.
That is, the object privileges granted on a table, view, sequence, procedure,
function, or package apply whether referencing the base object by name or by
using a synonym.
[/quote]

...

[quote]
If you grant object privileges on a table, view, sequence, procedure,
function, or package by referring to the object through a synonym for the
object, then the effect is the same as if no synonym were used.
[/quote]

Best regards,
--
Daniel
PostgreSQL-powered mail user agent and storage: http://www.manitou-mail.org

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// Dmitriy.


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