Xapian discuss - Dec 2006 - Wildcards in a boolean query

Hi,
I would really appreciate a little hint here.
When I run

Xapian::Query((Xpublish_date1130194800 AND XAPPSyes))' it's  fine (gives
me
6 documents published that day)

But when I try something like

Xapian::Query((Xpublish_date1130*  AND XAPPSyes))'

leaving aside that timestamps are not very useful here (todo), I get 0
results.

Is this not the way to restrict by a date range ?

Cheers  Marek

On Tue, Dec 05, 2006 at 03:18:19PM +0000, Marek Tichy
wrote:
> But when I try something like
> 
> Xapian::Query((Xpublish_date1130*  AND XAPPSyes))'
> 
> leaving aside that timestamps are not very useful here (todo), I get 0
> results.
Wildcards are only interpreted by the query parser: if you're creating
Query objects with the wildcard terms, you're causing Xapian to look for
terms which are literally "Xpublish_date1130*", not expanding the
wildcard.

Also, remember to set the database in use before using the query parser, so
that the wildcards can be expanded.
> Is this not the way to restrict by a date range ?
It's not the best way, since it will result in a very large number of terms
being generated.  Ways of grouping terms together to represent a range of
dates have been discussed in the list in the past.  (And Omega uses one
particular method of doing this.)

-- 
Richard