[Xapian-discuss] Re: [Xapian-devel] Usage with PHP

[James Aylett]

On Mon, Jul 25, 2005 at 01:40:09PM +0200, Arjen van der Meijden wrote:

> If the ones which will be pruned are known (and they should be), 
> scriptindex can be used for this as well. Just generate a similar text 
> (file), but with only the identification of the document. When the rest 
> is left out, scriptindex assumes it has to delete the record, and thus 
> it can also be used as a batch-deleter.

You're right, of course. For some reason when I checked the
scriptindex source I didn't notice the very obvious delete_document()
call ...

> The same goes for any form of updating; If you keep track when the last 
> update was done, you could select all documents that have changed since 
> than and update them. At least thats how we use it. We don't really 
> delete any forum-topics though, we just mark it as being hidden if we 
> "delete" it.

In general I'm in favour of hiding rather than deleting data, but it
depends on the application (and also on your CPU, memory and disk
availability, in some cases).

J

-- 
/--------------------------------------------------------------------------\
  James Aylett                                                  xapian.org
  james at tartarus.org                               uncertaintydivision.org