[Xapian-discuss] overlapping docids when searching on multiple databases?

[Richard Boulton]

On 22 October 2010 09:32, Per Jessen <per at computer.org> wrote:
> Just a quick question - it seems to me that it's entirely possible to
> get overlapping docids when searching on multiple databases?  For
> instance:

This doesn't happen, because the document IDs presented by a
multi-database are formed by interleaving the document IDs from the
sub-databases.
In your example, you'll be able to access one of the documents as
docid 19, and one as docid 20.

For details of how to convert from the docid in a multi database to
the docid in the sub-database, see:
http://trac.xapian.org/wiki/FAQ/MultiDatabaseDocumentID

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