Question

我正在研究Elasticsearch NEST Client for .NET。我必须在ES中实现CASE语句quivaleitn查询。

CASE 
WHEN [CompanyId] <> 1 AND VisibilityId=1 AND [Publish] = 1 AND StatusId = 1 THEN 1
WHEN [OrganizationId] = 1 THEN 1 
ELSE 0 
END = 1

显然我不知道如何做到这一点。在过去的两天里，我正在进行研究，但一无所获。

它可以和条款过滤器一起使用，就像我在之前的行中所做的那样：

new FilterDescriptor<MyClass>()
                                .Term("OrganizationId", 1)

Answer 1

我通过将Bool Query和Or Filter合并为：

来实现这一目标

new FilterDescriptor<ListingViewDTO>()
        .Or(fo => fo.Bool(b => b.Must(c => c.And(
                fs => !fs.Term("OrganizationId", compositeFilter.OrganizationId),
                fs => fs.Query(q => q.Fuzzy(n => n.OnField("ListingAttributeDTO.AttributeName").Value("ListingPublish"))),
                fs => fs.Query(q => q.Fuzzy(n => n.OnField("ListingAttributeDTO.Value").Value("1"))),
                fs => fs.Term("VisibilityId", (int)Visibility.AnyOne),
                fs => fs.Term("StatusId", 2)))),
            fo => fo.Term("OrganizationId", compositeFilter.OrganizationId));

ElasticSearch NEST客户端中的Sql Case Statement实现

1 个答案: