Gokulakannan Somasundaram wrote:
> Thanks Heikki. To clarify, there won't be any redirect-line pointers in this
> implementation. That space is saved. We will have the index tuple point to
> the latest live tuple in the update chain. So no need for redirect-line
> pointers.
The redirected line pointers are there for a reason. The reason is to be
able to retail vacuum (= prune) a page without having to do a regular
vacuum, scanning all indexes.
If you lose that ability, the idea is dead in the water.
-- Heikki Linnakangas EnterpriseDB http://www.enterprisedb.com