Обсуждение: how to check objects dependency??

I am trying to drop a user but it complained with the following message:

ERROR:  role "joe" cannot be dropped because some objects depend on it
DETAIL:  1 objects in database Jan_test
1 objects in database Jan

this user does not own any tables in those two databases. Is there any command I can use to check all the dependencies on this user?

Thanks,
Jessica

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On 10/31/07, Jessica Richard <rjessil@yahoo.com> wrote:
> I am trying to drop a user but it complained with the following message:
>
> ERROR:  role "joe" cannot be dropped because some objects depend on it
> DETAIL:  1 objects in database Jan_test
> 1 objects in database Jan
>
> this user does not own any tables in those two databases. Is there any
> command I can use to check all the dependencies on this user?

What version of pgsql are you running?  In 8.2 I get a more useful
error message for a table that is owned by a user, i.e.:

ERROR: role ... cannot be dropped ...
DETAIL: owner of table <tablename>

Have you looked in the logs to see if something like that shows up in them?

Jessica Richard wrote:
> I am trying to drop a user but it complained with the following message:
>
> ERROR:  role "joe" cannot be dropped because some objects depend on it
> DETAIL:  1 objects in database Jan_test
> 1 objects in database Jan
>
> this user does not own any tables in those two databases. Is there any
> command I can use to check all the dependencies on this user?

Connect to those databases and issue the command again to see the
detail.  When you are connected to a different database, you don't have
access to the other database catalogs, thus we cannot give you the
object names (only the fact that they exist).

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Jessica Richard <rjessil@yahoo.com> writes:
> I am trying to drop a user but it complained with the following message:
> ERROR:  role "joe" cannot be dropped because some objects depend on it
> DETAIL:  1 objects in database Jan_test
> 1 objects in database Jan

> this user does not own any tables in those two databases. Is there any command I can use to check all the
dependencieson this user? 

Try to do the DROP ROLE within those databases.  You'll get more detail
about owned objects within the current database, but from outside that
database the info isn't reachable ...

            regards, tom lane

Doesn't ownership also apply to views and stored procs...

Instead of using drop user username, I used drop user "username" with double quotes, then the error message told me more detail about a specific user defined function. Then I was able to drop that function, then drop this user.

My next question,

How do I check the ownership of the functions. I can't tell the difference between system functions and the user defined functions.

I am sure in the future there will be times that I need to check the ownership of the functions but not allowed to drop users to see check the dependencies.


Thanks a lot,
Jessica


Tom Lane <tgl@sss.pgh.pa.us> wrote:

Jessica Richard writes:
> I am trying to drop a user but it complained with the following message:
> ERROR: role "joe" cannot be dropped because some objects depend on it
> DETAIL: 1 objects in database Jan_test
> 1 objects in database Jan

> this user does not own any tables in those two databases. Is there any command I can use to check all the dependencies on this user?

Try to do the DROP ROLE within those databases. You'll get more detail
about owned objects within the current database, but from outside that
database the info isn't reachable ...

regards, tom lane

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Jessica Richard <rjessil@yahoo.com> writes:
> I am sure in the future there will be times that I need to check the ownership of the functions but not allowed to
dropusers to see check the dependencies. 

There's no need for a separate operation for that.  Do

    begin;
    drop user foo;
    rollback;

            regards, tom lane

Jessica Richard wrote:
> Instead of using drop user username, I used drop user "username" with
> double quotes, then the error message told me more detail about a
> specific user defined function. Then I was able to drop that function,
> then drop this user.

FYI you can use the commands DROP OWNED and REASSIGN OWNED to drop the
objects by a given role, and respectively assign them to someone else.
(8.2 only).

--
Alvaro Herrera       Valdivia, Chile   ICBM: S 39º 49' 18.1", W 73º 13' 56.4"
"Ninguna manada de bestias tiene una voz tan horrible como la humana" (Orual)