Re: Avoid orphaned objects dependencies, take 3

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От Bertrand Drouvot
Тема Re: Avoid orphaned objects dependencies, take 3
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Msg-id ZkRy73Q2NDBT0Avq@ip-10-97-1-34.eu-west-3.compute.internal
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Ответ на Re: Avoid orphaned objects dependencies, take 3  (Michael Paquier <michael@paquier.xyz>)
Ответы Re: Avoid orphaned objects dependencies, take 3  (Bertrand Drouvot <bertranddrouvot.pg@gmail.com>)
Re: Avoid orphaned objects dependencies, take 3  (Alexander Lakhin <exclusion@gmail.com>)
Список pgsql-hackers
Hi,

On Wed, May 15, 2024 at 10:14:09AM +0900, Michael Paquier wrote:
> On Thu, May 09, 2024 at 12:20:51PM +0000, Bertrand Drouvot wrote:
> > Oh I see, your test updates an existing dependency. v4 took care about brand new 
> > dependencies creation (recordMultipleDependencies()) but forgot to take care
> > about changing an existing dependency (which is done in another code path:
> > changeDependencyFor()).
> > 
> > Please find attached v5 that adds:
> > 
> > - a call to the new depLockAndCheckObject() function in changeDependencyFor().
> > - a test when altering an existing dependency.
> > 
> > With v5 applied, I don't see the issue anymore.
> 
> +            if (object_description)
> +                ereport(ERROR, errmsg("%s does not exist", object_description));
> +            else
> +                ereport(ERROR, errmsg("a dependent object does not ex
> 
> This generates an internal error code.  Is that intended?

Thanks for looking at it!

Yes, it's like when say you want to create an object in a schema that does not
exist (see get_namespace_oid()).

> --- /dev/null
> +++ b/src/test/modules/test_dependencies_locks/specs/test_dependencies_locks.spec 
> 
> This introduces a module with only one single spec.  I could get
> behind an extra module if splitting the tests into more specs makes
> sense or if there is a restriction on installcheck.  However, for 
> one spec file filed with a bunch of objects, and note that I'm OK to
> let this single spec grow more for this range of tests, it seems to me
> that this would be better under src/test/isolation/.

Yeah, I was not sure about this one (the location is from take 2 mentioned
up-thread). I'll look at moving the tests to src/test/isolation/.

Regards,

-- 
Bertrand Drouvot
PostgreSQL Contributors Team
RDS Open Source Databases
Amazon Web Services: https://aws.amazon.com



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