User/Group Quotas Revisited

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От Jonah H. Harris
Тема User/Group Quotas Revisited
Дата
Msg-id 42AB8B7F.1090300@tvi.edu
обсуждение исходный текст
Ответы Re: User/Group Quotas Revisited  (Gregory Maxwell <gmaxwell@gmail.com>)
Список pgsql-hackers
I've sent this again as it hadn't appeared on the list in over 4 hours; 
hopefully it isn't posted twice :).

Anyway, on to the main topic...

I've spent some time looking at my user/group quota patch and have
decided to start a new one for 8.x and need some decisions made:

- When to check quota (I'm leaning toward at commit)

- Is quota determined by the ACTUAL sizes of user-owned objects.

- Quota creation syntax  CREATE USER foo QUOTA 10M ON bar;  ALTER USER foo QUOTA 1G ON bar;  CREATE GROUP group QUOTA
100MON sometbspc;  ...
 

- Quota removal syntax  ALTER USER foo NOQUOTA ON bar;  OR  ALTER USER foo QUOTA UNLIMITED ON bar;

- Size parameter - Currently the following is allowed (I removed
kilobytes):  file_size       {digit}+[m|M|g|G|t|T]

- Who has permissions to set the user's quota per tablespace, the
superuser and the tablespace owner?

- How do we want to store quotas in the catalog?  I can go with an
aclitem-like array approach at the tablespace level or create a
pg_quota relation (aclitem-like array approach seems nicer, but you may
know something I don't)

Anything else you can think of, let me know.

Thanks.

-- 
Jonah H. Harris, Sr. Web Administrator | phone: 505.224.4814
Albuquerque TVI                        | fax:   505.224.3014
525 Buena Vista SE                     | jharris@tvi.edu
Albuquerque, New Mexico 87106          | http://w3.tvi.edu/~jharris/

A hacker on a roll may be able to produce, in a period of a few
months, something that a small development group (say, 7-8 people)
would have a hard time getting together over a year.  IBM used to
report that certain programmers might be as much as 100 times as
productive as other workers, or more.

-- Peter Seebach


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