[Zope] Sorting TextIndexNG results...

[Casey Duncan]

On Wednesday 02 April 2003 08:33 am, Andreas Jung wrote:
> --On Mittwoch, 2. April 2003 15:27 Uhr +0200 Thierry FLORAC=20
> <thierry.florac@onf.fr> wrote:
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> >
> >   Hi,
> >
> > I use TextIndexNG with french stemmers to index my documents in
> > "full-text"  mode.
> > My questions are :
> >  - how are TextIndexNG results sorted ?
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> Sorting is up to the application.
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> >  - how are results stored when a TextIndexNG is mixed with other inde=
xes
> > (fieldindexes,...) in a single query ?
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> same as above (except you specify sort_on on the ZCatalog level)
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> >  - is there a "rank" or "score" value available in TextIndexNG query
> > results  to be able to sort results manually ?
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> TextIndexNG does no ranking, ZCTextIndexNG does
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> >  - does ZCTextIndex solves these problems ??
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> Casey?
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> -aj

ZCTextIndex sorts in reverse order by relevance score (highest first). I =
think=20
you can also sort by arbitrary indexes if that isn't what you want. It of=
ten=20
is (for me at least).

Classic TextIndex works this way too, but its scoring algorithm is *much*=
 less=20
sophisticated.

hth,

-Casey