IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Script Score Query Usage
editScript Score Query Usage
editA query allowing you to modify the score of documents that are retrieved by a query. This can be useful if, for example, a score function is computationally expensive and it is sufficient to compute the score on a filtered set of documents.
See the Elasticsearch documentation on script_score query for more details.
Fluent DSL example
editq
.ScriptScore(sn => sn
.Name("named_query")
.Boost(1.1)
.Query(qq => qq
.Range(r => r
.Field(f => f.NumberOfCommits)
.GreaterThan(50)
)
)
.Script(s => s
.Source(_scriptScoreSource)
.Params(p => p
.Add("origin", 100)
.Add("scale", 10)
.Add("decay", 0.5)
.Add("offset", 0)
)
)
)
Object Initializer syntax example
editnew ScriptScoreQuery
{
Name = "named_query",
Boost = 1.1,
Query = new NumericRangeQuery
{
Field = Infer.Field<Project>(f => f.NumberOfCommits),
GreaterThan = 50
},
Script = new InlineScript(_scriptScoreSource)
{
Params = new Dictionary<string, object>
{
{ "origin", 100 },
{ "scale", 10 },
{ "decay", 0.5 },
{ "offset", 0 }
}
},
}
Example json output.
{
"script_score": {
"_name": "named_query",
"boost": 1.1,
"query": {
"range": {
"numberOfCommits": {
"gt": 50.0
}
}
},
"script": {
"source": "decayNumericLinear(params.origin, params.scale, params.offset, params.decay, doc['numberOfCommits'].value)",
"params": {
"origin": 100,
"scale": 10,
"decay": 0.5,
"offset": 0
}
}
}
}