Re: UPDATE works on a view?

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От Paul Förster
Тема Re: UPDATE works on a view?
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Msg-id ACCB0592-8786-4E68-8250-39ADF143BF37@gmail.com
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Ответ на UPDATE works on a view?  (Wells Oliver <wells.oliver@gmail.com>)
Ответы Re: UPDATE works on a view?  (Magnus Hagander <magnus@hagander.net>)
Список pgsql-admin
Hi Oliver,

> On 05. Aug, 2020, at 20:30, Wells Oliver <wells.oliver@gmail.com> wrote:
>
> Err, sorry if this is back to basics, but I was very confused by someone being able to UPDATE myview SET col = 1 and
theunderlying table actually being updated properly. 
>
> Is this recent? When did we become able to UPDATE on views?

yes, this is possible:

postgres=# create table t(i int);
CREATE TABLE
postgres=# create view v(i) as select i from t;
CREATE VIEW
postgres=# insert into v(i) values (0);
INSERT 0 1
postgres=# select * from v;
 i
---
 0
(1 row)

postgres=# update v set i=3;
UPDATE 1
postgres=# select * from v;
 i
---
 3
(1 row)

But I don't know since which PostgreSQL version views can up updated.

Cheers,
Paul


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