NEST string sort

The text string sort will be segmented first. You can create the filed field first. And set it as keyword

mapping

 public void Mapping()
        {
            var response = client.IndexExists("employee");
            if (!response.Exists)
            {
                client.CreateIndex("employee");
            }
            client.Map(m => m.Properties(p => p.Text(t => t.Name("last_name").Fielddata().Analyzer("english").Fields(f=>f .Keyword(k=>k.Name("raw"))))).AutoMap());
        }

sort

 public void Sort()

 {

 // client.Search(s => s. Query(q => q.Bool(b => b.Filter(f => f.Term(t => t.Field("last_name").Value("test01"))))).Pretty()) ;

 client.Search(s =>

 s.Query(q =>

 q.ConstantScore(c =>

 c.Filter(f =>

 f.Term(t =>

 t.Field("age").Value("26")

 ))))

 .Sort(so =>

 so.Descending("last_name")

)

 .Pretty());



 }

 public void Mapping()
        {
            var response = client.IndexExists("employee");
            if (!response.Exists)
            {
                client.CreateIndex("employee");
            }
            client.Map(m => m.Properties(p => p.Text(t => t.Name("last_name").Fielddata().Analyzer("english").Fields(f=>f .Keyword(k=>k.Name("raw"))))).AutoMap());
        }

 public void Sort()

 {

 // client.Search(s => s. Query(q => q.Bool(b => b.Filter(f => f.Term(t => t.Field("last_name").Value("test01"))))).Pretty()) ;

 client.Search(s =>

 s.Query(q =>

 q.ConstantScore(c =>

 c.Filter(f =>

 f.Term(t =>

 t.Field("age").Value("26")

 ))))

 .Sort(so =>

 so.Descending("last_name")

)

 .Pretty());



 }