Re: [HACKERS] pg_get_object_address() doesn't support composites

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От Jim Nasby
Тема Re: [HACKERS] pg_get_object_address() doesn't support composites
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Msg-id ebdd70df-b38f-4f32-7b6d-ab76e76a9331@BlueTreble.com
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Ответ на Re: [HACKERS] pg_get_object_address() doesn't support composites  (Jim Nasby <Jim.Nasby@BlueTreble.com>)
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On 2/18/17 4:26 PM, Jim Nasby wrote:
> On 2/17/17 9:53 PM, Alvaro Herrera wrote:
>> Jim Nasby wrote:
>>> See below. ISTM that pg_get_object_address should support everything
>>> pg_identify_object_as_address can output, no?
>>>
>>> I'm guessing the answer here is to have pg_identify_object_as_address
>>> complain if you ask it for something that's not mapable.
>> Yes, I think we should just reject the case in
>> pg_identify_object_as_address.
>
> Attached patch does that, and tests for it. Note that there were some
> unsupported types that were not being tested before. I've added a
> comment requesting people update the test if they add more types.

While testing a view on pg_depend, I discovered this has the unfortunate 
side-effect of meaning you can no longer use 
pg_identify_object_as_address against pg_depend.ref*. Using it against 
pg_depend was already problematic though, because it throws an error on 
the pinned objects if you try and hand it classid, objid or objsubid. So 
maybe it's OK.
-- 
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)



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