Re: [Tracker] SPARQL: Drop Graph deprecated

[Ivan Frade <ivan frade gmail com>]

Hi Mildred,

On Tue, May 31, 2011 at 6:19 PM, Mildred Ki'Lya
<mildred593+ml tracker gmail com> wrote:
> Hi again,
>
> I created an indexer for tracker 0.8 and now with tracker 0.10, it
> doesn't work anymore: Use of DROP GRAPH is deprecated
>
> I was never clear on what exactly were the sparql requests to add new
> objects to the database:
>
> Then, I think I understood how it worked, and used the INSERT INTO
> command combined with DROP GRAPH:
>  DROP GRAPH <file:///.../mbox#1>
>  INSERT INTO <file:///.../mbox#1> { <file:///.../mbox#1> a nmo:Email . }
>  DROP GRAPH <file:///.../mbox#2>
>  INSERT INTO <file:///.../mbox#2> { <file:///.../mbox#2> a nmo:Email . }

This looks like a very bad idea. Basically you are reinserting all the
information from scratch every time!

> What is the correct way of doing things.

 First of all, instead of monitoring the mbox file, try to write a
plugin for your favourite mail client. It knows when a new mail
arrives, so you don't need to guess what is going on from a file
modification.

> if possible, I'd rather override existing objects and not test if they
> are already in the database for three reasons:

 Check our new INSERT OR REPLACE
http://mail.gnome.org/archives/tracker-list/2011-March/msg00097.html

 Hope to see soon your indexer around!

 Regards,

Ivan