如何找到 Elastic NEST 查询的总命中数？

Question

在我的应用程序中，我有一个查询将返回的命中数限制为 50，如下所示

            var response = await client.SearchAsync<Episode>(s => s
                .Source(sf => sf
                     .Includes(i => i
                         .Fields(
                             f => f.Title,
                             f => f.PublishDate,
                             f => f.PodcastTitle
                         )
                     )
                     .Excludes(e => e
                         .Fields(f => f.Description)
                     )
                 )
                .From(request.Skip)
                .Size(50)
                .Query(q => q 
                    .Term(t => t.Title, request.Search) || q
                    .Match(mq => mq.Field(f => f.Description).Query(request.Search))));

I am interested in the total number of hits for the query (i.e. not limited to the size), so that I can deal with pagination on the front-end. Does anyone know how I can do this?

Answer 1

您在搜索响应对象上查找 Total 属性。 Have a look.

因此在您的特定情况下，这将是 response.Total。

Answer 2

对于那些正在处理超过 10000 个文档的索引的人，Elasticsearch 将默认计算最多 10000 个总命中。要解决这个问题，请在您的查询中包含 .TrackTotalHits(true)：

var resp = client.Search<yourmodel>(s => s
    .Index(yourindexname)
    .TrackTotalHits(true)
    .Query(q => q.MatchAll()));

如何找到 Elastic NEST 查询的总命中数？

How can I find the total hits for an Elastic NEST query?

elasticsearch

nest