Re: Enhancement Request
| От | M Sarwar |
|---|---|
| Тема | Re: Enhancement Request |
| Дата | |
| Msg-id | DM4PR19MB597863302D9DE35498BC4CA7D37C2@DM4PR19MB5978.namprd19.prod.outlook.com обсуждение исходный текст |
| Ответ на | RE: Enhancement Request ("Hajek, Nick" <Nick.Hajek@vishay.com>) |
| Ответы |
Re: Enhancement Request
|
| Список | pgsql-admin |
Sent: Wednesday, January 31, 2024 3:50 PM
To: M Sarwar <sarwarmd02@outlook.com>; Campbell, Lance <lance@illinois.edu>; pgsql-admin@postgresql.org <pgsql-admin@postgresql.org>
Subject: RE: Enhancement Request
[ External Email ]
// Are you confirming that DELETE FROM - LIMIT is working?
No, I don’t believe you can use limit in the delete itself but you can use it in a subselect and accomplish the same thing as shown in the example below.
// It would be nice if the DELETE FROM supported LIMIT. I can already feel the dislike for this post coming back in my direction.
// I have had numerous times over the years where I need to delete a lot of rows from a table but because each row is linked to so many other tables it will cause // a problem in performance if I don’t limit the size of the deletion.
I use a query like this to accomplish a limited deletion –
Delete from table1 where table1.id in (select table1.id from table1 limit yourlimitnumber)
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