RE: syntax error with alter type

Поиск
Список
Период
Сортировка
От Kevin Brannen
Тема RE: syntax error with alter type
Дата
Msg-id SN1PR19MB025583E85003B244A10C80F9A4A50@SN1PR19MB0255.namprd19.prod.outlook.com
обсуждение исходный текст
Ответ на Re: syntax error with alter type  (Tom Lane <tgl@sss.pgh.pa.us>)
Список pgsql-general
Tom Lane wrote:

> Kevin Brannen <KBrannen@efji.com> writes:
> > So, can you (or anyone) help me understand what "alter type <type> drop attribute" is meant to do? I don't see
"attribute"on the page you reference. 

> IIRC, that drops a column from a composite type; it's more or less a variant spelling of ALTER TABLE DROP COLUMN.

I'm going to guess this is part of the "SQL Standard", but I'd like to comment that this seems really ... weird. All
languageshave their warts or things they could have done better in hind sight, but this strikes me as very weird. 

That being said, I can sort of see why you say that. Looking at the examples, I can see:

    ALTER TYPE compfoo ADD ATTRIBUTE f3 int;

which looks a lot like adding a column to a table. It would have been nice to know what "compfoo" is as that would have
clearedup some confusion. I guess I'll make a doc change request. 

Of course, the real answer is that someone here in the past should have made a small table of reference values instead
ofcreating an ENUM, then I  wouldn't be facing this. Again, hind sight...sigh. 

Thanks,
Kevin
This e-mail transmission, and any documents, files or previous e-mail messages attached to it, may contain confidential
information.If you are not the intended recipient, or a person responsible for delivering it to the intended recipient,
youare hereby notified that any disclosure, distribution, review, copy or use of any of the information contained in or
attachedto this message is STRICTLY PROHIBITED. If you have received this transmission in error, please immediately
notifyus by reply e-mail, and destroy the original transmission and its attachments without reading them or saving them
todisk. Thank you. 


В списке pgsql-general по дате отправления:

Предыдущее
От: Tom Lane
Дата:
Сообщение: Re: pg_restore fails due to foreign key violation
Следующее
От: Jeff Janes
Дата:
Сообщение: pg_stat_replication view