Re: [Evolution-hackers] Sqlite cache for address-book storage in EDS

[Chenthill Palanisamy <pchenthill gmail com>]

On Mon, Mar 14, 2011 at 3:53 PM, Adam Tauno Williams
<awilliam opengroupware us> wrote:
> On Mon, 2011-03-14 at 10:09 +0530, Chenthill Palanisamy wrote:
>> On Thu, Mar 10, 2011 at 6:54 PM, Matthew Barnes <mbarnes redhat com> wrote:
>> > Okay, this might be a long shot but I'm gonna throw it out there anyway:
>> > would it make sense to look at using Xapian to index a directory of raw
>> > vCards?
>> Am not sure if its worth doing this for adress-book. Am just making an
>> assumption that the
>> address-book content may not be as huge as mail data. The only address-book data
>> that would be large enough would be GAL (exchange) and
>> SystemAdressBook (groupwise).
>
> This is a self-fulfilling prophecy;  I and others have tried to have
> large address books... which doesn't work... so address books remain
> "small".
I agree, the *only* should be removed from the third sentence of mine,
there could be other address-books.
While thinking of Xapian for address-book, am not still convinced.

One could search on various fields such as sender, subject,
recipients, full-text search etc. in mailer often and xapian is said
to work much better.
Although I have not got any profiling information as such, but its
just from hearing from multiple people.

But for address-books, the most often used searches would be based on
name and email. Even if the address-book has 21k or more data,
a db with good indexing should perform better. The information stored
will be small when compared to mail content.. Well these are just
my observations, are there any other cases am missing ?

>
> I have a CardDAV/GroupDAV collection of ~21,000 contacts I'd love to
> have access to via Evolutions WebDAV address book.  But anything more
> than a thousand or so gets to be unbearably slow.
AFAIR, there are some UI issues involved here which should be dealt
with separately.

- Chenthill.
>
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