Re: performance issue in remove_from_unowned_list() - Mailing list pgsql-hackers

From Robert Haas
Subject Re: performance issue in remove_from_unowned_list()
Date
Msg-id CA+TgmobELht8YLsh3FOYaOAsM6DrSu5_vOoJru7ni4OmGCU6ng@mail.gmail.com
Whole thread Raw
In response to Re: performance issue in remove_from_unowned_list()  (Tomas Vondra <tomas.vondra@2ndquadrant.com>)
List pgsql-hackers
On Wed, Mar 13, 2019 at 9:47 AM Tomas Vondra
<tomas.vondra@2ndquadrant.com> wrote:
> AFAICS we already maintain a hash table of the smgr relations, and we
> look them up in this table. We don't need to look them up in the list of
> unowned relations - the whole problem is that with the current
> single-linked list, we need to iterate the list anyway to update pointer
> in the preceding entry.

OK, I'm dumb.  Sorry for the noise.

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company


pgsql-hackers by date:

Previous
From: Tomas Vondra
Date:
Subject: Re: performance issue in remove_from_unowned_list()
Next
From: Corey Huinker
Date:
Subject: GIN indexes on an = ANY(array) clause