directory-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Emmanuel L├ęcharny <>
Subject Re: Renaming the 'existence' index and AT to 'presence'
Date Thu, 07 Jul 2011 22:11:58 GMT
On 7/7/11 11:47 PM, Alex Karasulu wrote:
> On Thu, Jul 7, 2011 at 11:00 PM, Emmanuel Lecharny<>  wrote:
>> Hi,
>> I wanted to do that a long time ago, but never found the time to do it. I
>> finally did it.
>> The 'existence' index is used to evaluate the 'presence' filter. There is no
>> reason it should be named differently, it's probably named this way for
>> historical reason.
> It was called the presence index in the beginning IIRC. I renamed it
> to existence to comply with the name used by the paper on partition
> design that was followed while implementing the original xdbm design
> so at that time it seemed to fit better. All in all I don't think it
> makes any difference either way. Presence sounds better as you say
> because of the presence filter evaluation.
Yeah, that was my understanding. I think it's better to stick to one 
single name, and presence is already mostly used everywhere except in 
the config (apacheExistence).

It has been committed, 'existence' has no more existence :-)

Emmanuel L├ęcharny

View raw message