I've just read about payload, and I'm not sure it would be easy to use that feature in calculating distances for SpanQueries. I guess You would have to build your own SpanQuery, using payload instead of term position. But it would be much lighter for index size if it were possible, indeed.
I hope some lucene expert can give his insight about all this. :)
Pierre
-----Message d'origine-----
De : Livia Hauser
Envoyé : mardi 8 février 2011 22:51
À : java-user@lucene.apache.org
Objet : RE: How to implement a proximity search using LINES as slop
Hi Pierre,
many thanks for your idear.
I had a look to Payloads ... should it possible to store the line number as payload?
Best Regards,
Livia
-----Ursprüngliche Nachricht-----
Von: "Pierre GOSSE" <pierre.gosse@arisem.com>
Gesendet: 08.02.2011 09:37:53
An: "java-user@lucene.apache.org" <java-user@lucene.apache.org>
Betreff: RE: How to implement a proximity search using LINES as slop
Hi Livia,
One way of doing this line slope would be to implement a custom tokenizer that could tokenize on new line, and split each token into the words it contains. I.e. Each word of a line would be seen as being at the same position (and having same offset and length as the complete line).
I don't think usual queries would respond well with that field, so maybe you will have to have two fields, one standard for searching and scoring and one custom for filtering your results.
But maybe that's overkill, and there's a simpler manner to achieve this line slope, I'm quite new to solr. :)
Pierre
-----Message d'origine-----
De : Livia Hauser
Envoyé : lundi 7 février 2011 20:59
À : java-user@lucene.apache.org
Objet : How to implement a proximity search using LINES as slop
Hi All,
I use solr 3.x and put excel documents into an index.
I have my own query parser and use SpanQueries to provide a proximity search feature. It works really good.
Most often than not its better to limit the proxmity to one or two line's, not to X words.
I try to find a NewLine indicator... unsuccessfully.
How can use the number of lines as proximity?
Thx!
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