Re: BUG #15601: ERRO TYPE SERIAL

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От Jeff Janes
Тема Re: BUG #15601: ERRO TYPE SERIAL
Дата
Msg-id CAMkU=1x-wc0w6C7JDxXxmC_Lnnjt2XpP+WAqBpTu2JGg2awu2w@mail.gmail.com
обсуждение исходный текст
Ответ на BUG #15601: ERRO TYPE SERIAL  (PG Bug reporting form <noreply@postgresql.org>)
Ответы Re: BUG #15601: ERRO TYPE SERIAL
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On Mon, Jan 21, 2019 at 4:26 PM PG Bug reporting form <noreply@postgresql.org> wrote:
The following bug has been logged on the website:

Bug reference:      15601
Logged by:          Waltênio de Bessa Mendes
Email address:      walteniobessa@gmail.com
PostgreSQL version: 11.1
Operating system:   Win 10
Description:       

ALTER TABLE documento ALTER COLUMN id_doc TYPE SERIAL;

ERROR:  type "serial" does not exist
********** Error **********

ERROR: type "serial" does not exist
SQL state: 42704


This isn't a bug.


The data types smallserial, serial and bigserial are not true types, but merely a notational convenience for creating unique identifier columns (similar to the AUTO_INCREMENT property supported by some other databases) 

Further down, it tells you how to turn an existing column into that behaves just as if you had created it with 'serial' in the first place.

Cheers,

Jeff

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