Elasticsearch Nest：获取随机文档

为了补充@pickypg的答案，下面是一个如何在NESTfunction_score中用random_score函数编写查询的示例：

client.Search<MyType>(s => s
    .Query(q => q
        .FunctionScore(fs => fs
            .Query(fq => fq.MatchAll())
            .RandomScore()
        )
    )
);