Re: Wrong order of tests in findDependentObjects() - Mailing list pgsql-hackers

From Jim Nasby
Subject Re: Wrong order of tests in findDependentObjects()
Date
Msg-id 865865e1-7064-0319-e7ea-13b7fddad4f1@BlueTreble.com
Whole thread Raw
In response to Re: Wrong order of tests in findDependentObjects()  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: Wrong order of tests in findDependentObjects()  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-hackers
On 11/27/16 10:15 AM, Tom Lane wrote:
> Jim Nasby <Jim.Nasby@bluetreble.com> writes:
>> I suspect this is unrelated, but I've run into another oddity with
>> extension dependency: if an extension creates any temporary objects the
>> extension will install and function correctly... until the backend that
>> created the extension quits. This is VERY confusing if you've never come
>> across it before, because you'll do a bunch of work in a single script
>> but when you try to use the extension for real it will "randomly" just
>> vanish.
>
> Yeah, I was wondering about that yesterday --- that comment mentions
> the case of temporary objects, but it only fixes the problem while the
> script runs.  Maybe there should be a separate test for "we're doing
> temporary-object cleanup" that would similarly prevent recursion to
> an extension?

I can't think of any reason you'd want the current behavior.

Though, it'd arguably be better to remove temp objects created by an 
extension after the script exits, so that they can't "leak" into the 
executing backend. Dunno if that's any harder or not...
-- 
Jim Nasby, Data Architect, Blue Treble Consulting, Austin TX
Experts in Analytics, Data Architecture and PostgreSQL
Data in Trouble? Get it in Treble! http://BlueTreble.com
855-TREBLE2 (855-873-2532)



pgsql-hackers by date:

Previous
From: Michael Paquier
Date:
Subject: Re: [COMMITTERS] pgsql: libpq: Allow connection strings and URIs to specify multiple hos
Next
From: Jim Nasby
Date:
Subject: Re: Physical append-only tables