[Xapian-discuss] Re: Easy deletion of documents?

[Ted Jordan]

Olly Betts <olly <at> survex.com> writes:

> 
> Just add the filename as a term to each document (with a prefix to
> distinguish it from terms from text - "Q" is the usual prefix for
> such uniQue terms, but nothing in the core library relies on this.
> 
> Then you can directly call delete_document or replace_document with a
> termname instead of a document id.

I have an index prefix 'extid:' which has worked well so far for indexing and 
searching.  I tried to use it for deletion (using PHP) e.g.

WritableDatabase_delete_document($database, 'extid:1367');

but I get the following error:

Fatal error: InvalidArgumentError: Document ID 0 is invalid

Any ideas?

Thanks,
-Ted.