| From: | Heikki Linnakangas <heikki(at)enterprisedb(dot)com> |
|---|---|
| To: | Pavan Deolasee <pavan(dot)deolasee(at)gmail(dot)com> |
| Cc: | ITAGAKI Takahiro <itagaki(dot)takahiro(at)oss(dot)ntt(dot)co(dot)jp>, Martijn van Oosterhout <kleptog(at)svana(dot)org>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Free space management within heap page |
| Date: | 2007-01-23 10:49:44 |
| Message-ID: | 45B5E848.4060102@enterprisedb.com |
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| Lists: | 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
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