Xapian discuss - Jan 2012 - Perl version of sortable_serialize missing?

I attempted to use the sortable_serialize function from perl, however 
doesn't seem to exist.  The only occurrence of the string
"sortable" in
the /usr/local/perl/5.10.1/Search/ tree is in the pod in Xapian.pm.

What am I doing wrong?

use Search::Xapian;
...
             $doc->add_value(4,sortable_serialize($recdate));

Undefined subroutine &main::sortable_serialize called at 
newgenstaticindex line 444

Thanks,
Jim.

On Fri, Jan 20, 2012 at 06:02:13AM -0500, Jim Lynch
wrote:
> I attempted to use the sortable_serialize function from perl, however  
> doesn't seem to exist.  The only occurrence of the string
"sortable" in
> the /usr/local/perl/5.10.1/Search/ tree is in the pod in Xapian.pm.
It's wrapped entirely in XS, so the wrapper is in the compiled Xapian.so
shared object.
> What am I doing wrong?
>
> use Search::Xapian;
> ...
>             $doc->add_value(4,sortable_serialize($recdate));
It isn't exported into the global namespace, so you need to explicitly
qualify its name:

    $doc->add_value(4,Search::Xapian::sortable_serialize($recdate));

Cheers,
    Olly

I found a simple solution by using OP_AND_MAYBE and OP_SCALE_WEIGHT!

The new query:
[QUERY: Xapian::Query((0.5 * ((Zstempel:(pos=1) SYNONYM
Zamtszeich:(pos=1) SYNONYM Zgrubenholz:(pos=1) SYNONYM
Zkennzeich:(pos=1) SYNONYM Zpoststempel:(pos=1) SYNONYM
Zpragestempel:(pos=1) SYNONYM Zpunz:(pos=1) SYNONYM Zsiegel:(pos=1))
FILTER QMde) AND_MAYBE Zstempel:(pos=1)))]

It also works with multiple terms.

Again, xapian is simple and fast!


Am 30.01.2012 10:28, schrieb Websuche :: Felix Antonius Wilhelm
Ostmann:
> We are using FLAG_AUTO_SYNONYMS and it works like a charm (+stemmer),
> but we currently have a problem with the order of the results. We think,
> the best result will be a result without a synoym.
> 
> We search for stempel (german for chop) and after FLAG_AUTO_SYNONYMS
> (+STEM_SOME as stemming strategy) we get the following query:
> 
> [QUERY: Xapian::Query(((Zstempel:(pos=1) SYNONYM Zamtszeich:(pos=1)
> SYNONYM Zgrubenholz:(pos=1) SYNONYM Zkennzeich:(pos=1) SYNONYM
> Zpoststempel:(pos=1) SYNONYM Zpragestempel:(pos=1) SYNONYM Zpunz:(pos=1)
> SYNONYM Zsiegel:(pos=1)) FILTER QMde))]
> 
> [POS: 0] [PERCENT: 100%] [WEIGHT:10.153175] [ID: 64977] [PID: 8876897]
> ...
> [POS: 38] [PERCENT: 100%] [WEIGHT:8.763471] [ID: 125701] [PID: 9023761]
> ...
> 
> Term List for record #64977: QMde QMint Zpunz punzen
> Term List for record #125701: QMde QMint Zstempel Zstempelkiss Zstempeln
> stempel stempelkissen stempeln
> 
> 
> Perhaps there is a solution by building a special search or two searches
> (first without synonym, second with), but the problem starts, when there
> are 3.. terms to search for, all with synoynms.
> 
> Is there a way to prefer results with exact hits?
> 
> _______________________________________________
> Xapian-discuss mailing list
> Xapian-discuss at lists.xapian.org
> http://lists.xapian.org/mailman/listinfo/xapian-discuss
> 

-- 
Mit freundlichen Gr??en

Felix Antonius Wilhelm Ostmann
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