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.
Solution
This should work (I take it it still is in C#)
IndexReader.Open(/* path to index */).Terms(new Term("companyName", String.Empty));
Licensed under: CC-BY-SA with attribution
Not affiliated with StackOverflow