How to search a Field.Index.NOT_ANALYZED field in Lucene.NET?

Question

I am new to Lucene.NET. I am adding fields as

Field.Index.NOT_ANALYZED

in a Lucene document. There is one default field which is added in document as

Field.Index.ANALYZED

I have no difficulty in searching the default field; but when I search on a specific field then Lucene returns 0 document. However if I change,

Field.Index.NOT_ANALYZED

to

Field.Index.ANALYZED

then things work properly. I think there is something to do with Analyzer. Can any body guide me on how to search a Field.Index.NOT_ANALYZED field?

Here is how I am creating the query parser:

QueryParser parser = 
    new QueryParser(
        Version.LUCENE_30, 
        "content", 
        new StandardAnalyzer(Version.LUCENE_30));

Can you post an example of how you are indexing and what type of values those fields have? And how are you searching the index? Also, any particular reason you are using NOT_ANALYZE for most fields? — rae1

sisve sisve · Accepted Answer · 2013-07-03T13:18:36

ANALYZED just means that the value is passed through an Analyzer before being indexed, while NOT_ANALYZED means that the value will be indexed as-is. The later means that a value like "hello world" will be indexed as just exactly that, the string "hello world". However, the syntax for the QueryParser class parses spaces as a term-separator, creating two terms "hello" and "world".

You will be able to match the field if you created a var q = new TermQuery(new Term(field, "hello world")) instead of calling var q = queryParser.Parse(field, "hello world").

How to search a Field.Index.NOT_ANALYZED field in Lucene.NET?

2 Answers