Chris,
Good to see you over here.
There's probably an easier way...
I ran into this with geo queries, and the answer there is to test every value
in the multi field for the document that is a hit.
For the text search question, though, you could use analysis and then run a
SpanQuery against your documenta. You'd get the token offsets and then you
could re-analyze to figure out which field index is your hit. I have some
helper code that I built as part of LUCENE-5317 that might be of use, but I
haven't submitted that updated patch yet.
Stay tuned, though, for the demise of SpanQueries...
Best,
Tim
________________________________________
From: Chris Bamford [[email protected]]
Sent: Tuesday, May 20, 2014 11:13 AM
To: [email protected]
Subject: Question about multi-valued fields
Hi,
Does anyone know a way of identifying which entry in a multi-value field
actually matches during a search?
e.g. in this example:
String[] entryList = { "entry one", "entry two", "entry three", "entry four"
};
Document doc = new Document();
for (String entry : Arrays.asList(entryList)) {
doc.add(new Field("multival-field", entry, Field.Store.NO,
Field.Index.NOT_ANALYZED));
}
...
iw.addDocument(doc);
Then when we query:
Query query = new TermQuery(new Term("multival-field", "entry three"));
TopDocs hits = searcher.search(query, 10);
This should match our Document. At this point is there a way to also find out
which entry in the array making up "multival-field" was responsible?
Thanks,
- Chris
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