Get all lucene values that have a certain fieldName

Question

To solve this problem I created a new Lucene index where all possible distincted values of each field are indexed seperatly.

So it's an index with a few thousand docs that have a single Term.
I want to extract all the values for a certain term. For example, I would like all values that have the fieldName "companyName".
Defining a WildcardQuery is off course not a solution. Neither is enumerating ALL fields and only saving the ones with the correct fieldName.

score 2 · Accepted Answer · answered Mar 06 '09 at 15:57

2

This should work (I take it it still is in C#)

IndexReader.Open(/* path to index */).Terms(new Term("companyName", String.Empty));

answered Mar 06 '09 at 15:57

Razzie

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ah, empty string :) (added C# tag) – Boris Callens Mar 06 '09 at 18:15
I always missed that in Java. But I realize `String.MissingString` would have been appropriate. (Huh, good that java did not have this!) – asyncwait Jul 18 '14 at 11:55

Get all lucene values that have a certain fieldName

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