Re: Drop user cascade
From: pgsql-general-owner@postgresql.org [mailto:pgsql-general-owner@postgresql.org] On Behalf Of Melvin Davidson
Sent: Wednesday, October 19, 2016 5:35 PM
To: Alex Ignatov (postgrespro) <a.ignatov@postgrespro.ru>
Cc: Tom Lane <tgl@sss.pgh.pa.us>; pgsql-general@postgresql.org
Subject: Re: [GENERAL] Drop user cascade
On Wed, Oct 19, 2016 at 10:03 AM, Alex Ignatov (postgrespro) <a.ignatov@postgrespro.ru> wrote:
-----Original Message-----
From: pgsql-general-owner@postgresql.org
[mailto:pgsql-general-owner@postgresql.org] On Behalf Of Tom Lane
Sent: Wednesday, October 19, 2016 4:31 PM
To: Alex Ignatov (postgrespro) <a.ignatov@postgrespro.ru>
Cc: pgsql-general@postgresql.org
Subject: Re: [GENERAL] Drop user cascade
"Alex Ignatov \(postgrespro\)" <a.ignatov@postgrespro.ru> writes:
> Why do Postgres have no such functionality as DROP USER CASCADE? Is
> there any reasons in that absence?
The short answer is that DROP USER couldn't reach across databases to get
rid of owned objects in other databases. See
https://www.postgresql.org/docs/9.6/static/role-removal.html
regards, tom lane
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http://www.postgresql.org/mailpref/pgsql-generalSome security consideration bear in mind that DROP OWNED cant delete own
objects in other DBs? In general what stops us to do inter DBs connection
like MSSQL?
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Alex Ignatov
Postgres Professional: http://www.postgrespro.com The Russian Postgres
Company
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>In general what stops us to do inter DBs connection like MSSQL?
It currently is not generic to PostgreSQL, but you can do that with the dblink extension/functions.
--
Melvin Davidson
I reserve the right to fantasize. Whether or not you
wish to share my fantasy is entirely up to you. 
I know about dblink =)
The question was – is there any caveats to not allow xross db access. Maybe some security considerations prevent to implement it.
We all know that PG = one process rules multiple DBs why not to allow direct access to another DB. We have one transaction counter and so on where is the problems if any?
--
Alex Ignatov
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company
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