Re: Free space management within heap page - Mailing list pgsql-hackers

From Heikki Linnakangas
Subject Re: Free space management within heap page
Date
Msg-id 45B5E848.4060102@enterprisedb.com
Whole thread Raw
In response to Re: Free space management within heap page  ("Pavan Deolasee" <pavan.deolasee@gmail.com>)
List pgsql-hackers
Pavan Deolasee wrote:
> I thought that we can not reclaim the line pointers unless we remove the
> corresponding index entries as well. Isn't that the case ? If so, how would
> we reclaim the line pointers after the last used one ?

There might be index pointers to dead line pointers in the proposed 
truncation scheme, so those can't be reclaimed, but after the index 
pointers are removed and the line pointers are unused like they are 
today, they could be reclaimed.

--   Heikki Linnakangas  EnterpriseDB   http://www.enterprisedb.com


pgsql-hackers by date:

Previous
From: ITAGAKI Takahiro
Date:
Subject: Re: Free space management within heap page
Next
From: "Simon Riggs"
Date:
Subject: Re: Planning aggregates which require sorted or distinct