Applying query slop(qs) to string field in solr

Question

My default solr config looks like:

<str name="qf">
   id^1.0 field1^100 field2^60 field3^10
</str>
<str name="qs">2</str>

where id and field2 are string types and others are custom types. I am using the extended disjunction max query parser.

On running a query with debugQuery=true

Query: "IO exceptions"(with quotes) This is the parsedQuery:

(+DisjunctionMaxQuery((id:IO exceptions | field1:"io except"~2^100.0 field2:IO exceptions^60.0 | field3:"io except"~2^10.0)) ())/no_coord

Does anyone know the reason ?

Answer 1

String fields are for exact matches. There is no slop available for a StrField. If you want to apply a slop, use a TextField with a Whitespace tokenizers or something similar.

Your parsedQuery also shows that the StrFields only matches exactly, while the other fields are stemmed before queried.