[Xapian-discuss] Behavior of WritableDatabase against an "add_database"

[Olly Betts]

On Sat, Nov 04, 2006 at 02:15:19PM +0000, James Aylett wrote:
> I'm still not convinced it's worth putting in core - we could write a
> note on the wiki. Again, it's only a few lines of code, and in general
> you really want to think about things in a little more detail...

Depends how complete a WritableDatabase you want.  If you just want to
handle add_document, it's trivial to implement yourself.  But e.g. the
termname variants of replace_document and delete_document will require
more work, and you'd need to write a lot of tedious dispatching code
for the other methods which is already in xapian-core.

Also, notice that the round-robin approach matches how we interleave
document ids when handling reading from several database together.

Cheers,
    Olly