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From Alex Karasulu <akaras...@apache.org>
Subject Re: Removal of reverse index, take 2
Date Sat, 15 Oct 2011 09:26:14 GMT
On Fri, Oct 14, 2011 at 5:43 PM, Emmanuel Lecharny <elecharny@gmail.com>wrote:

> Hi guys,
>
> a few months ago, I tried to get rid of reverse index, but the effort was
> doomed, as I discovered that we really badly needed them in some cases (like
> the sub-level or one-level index).
>
> If we get rid of one-level/sub-level index, then I do think we don't
> anymore need the reverse index.
>
> I still have to think a bit more about the alias index, and the impact on
> the code if we remove the reverse index.
>
> Just wanted to bring some light on this matter again.
>
> Note : removing the reverse index will lead to a major speed improvement in
> additions or modifications, as we will only have one table to update,
> instead of two...
>
>
Absolutely. It will almost double performance without caching.

-- 
Best Regards,
-- Alex

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