Span or queryedit

Matches the union of its span clauses. The span or query maps to Lucene SpanOrQuery. Here is an example:

GET /_search
{
  "query": {
    "span_or" : {
      "clauses" : [
        { "span_term" : { "field" : "value1" } },
        { "span_term" : { "field" : "value2" } },
        { "span_term" : { "field" : "value3" } }
      ]
    }
  }
}

The clauses element is a list of one or more other span type queries.