MostFields multi_match fuzziness on all but one field - nest

Question

I have several different mappings for a field. I have one field that is phonetic. I would like to do a query with fuzziness, but not use fuzziness on the phonetic field.
...
_client.Search<JobModelSummary>(s => s
.Index(indexName)
.Query(q => q
.MultiMatch(m => m
.Query(paginationQuery.Search)
.Type(TextQueryType.MostFields)
.Fuzziness(Fuzziness.EditDistance(1))
.Fields(f => f
.Field(ff => ff.Name.Suffix("standard"), 3)
.Field(ff => ff.Name.Suffix("edge-ngram"), 2)
.Field(ff => ff.Name.Suffix("phonetic")) // <--- Don't want this fuzzy
))));
The documentation is sparse and I am finding it difficult to peace together how this would be done.

Answer 1

If you're performing a most fields multi_match query as above, you can achieve what you'd like by combining several match queries together
var indexName = "foo";
var search = "search";
var searchResponse client.Search<JobModelSummary>(s => s
.Index(indexName)
.Query(q => q
.Bool(b => b
.Should(sh => sh
.Match(m => m
.Query(search)
.Fuzziness(Fuzziness.EditDistance(1))
.Field(ff => ff.Name.Suffix("standard"))
.Boost(3)
), sh => sh
.Match(m => m
.Query(search)
.Fuzziness(Fuzziness.EditDistance(1))
.Field(ff => ff.Name.Suffix("edge-ngram"))
.Boost(2)
), sh => sh
.Match(m => m
.Query(search)
.Field(ff => ff.Name.Suffix("phonetic"))
)
)
)
)
);
which can be made slightly more succinct with using the overload operators for queries
client.Search<JobModelSummary>(s => s
.Index(indexName)
.Query(q => q
.Match(m => m
.Query(search)
.Fuzziness(Fuzziness.EditDistance(1))
.Field(ff => ff.Name.Suffix("standard"))
.Boost(3)
) || q
.Match(m => m
.Query(search)
.Fuzziness(Fuzziness.EditDistance(1))
.Field(ff => ff.Name.Suffix("edge-ngram"))
.Boost(2)
) || q
.Match(m => m
.Query(search)
.Field(ff => ff.Name.Suffix("phonetic"))
)
)
);
Both produce
POST http://localhost:9200/foo/jobmodelsummary/_search
{
"query": {
"bool": {
"should": [
{
"match": {
"name.standard": {
"boost": 3.0,
"query": "search",
"fuzziness": 1
}
}
},
{
"match": {
"name.edge-ngram": {
"boost": 2.0,
"query": "search",
"fuzziness": 1
}
}
},
{
"match": {
"name.phonetic": {
"query": "search"
}
}
}
]
}
}
}
The scores for each query in the should clause will be added together to provide the final _score for each document. With only should clauses specified, at least one has to match for a document to be considered a match.