Span First Query

Matches spans near the beginning of a field. The span first query maps to Lucene SpanFirstQuery. Here is an example:

{
    "span_first" : {
        "match" : {
            "span_term" : { "user" : "kimchy" }
        },
        "end" : 3
    }
}

The match clause can be any other span type query. The end controls the maximum end position permitted in a match.