[英]Exclude nulls in Nest Api query
I have added the following snippet in a nest query which returns a ISearchResponse<T>
我在返回ISearchResponse<T>
的嵌套查询中添加了以下代码片段
.Query(query => query.Match(m =>
m.Field(f =>
f => !string.IsNullOrEmpty(f.Purchase.NationalCode.Trim()))
)))
But it makes no difference to the amount of records returned (and I know there are nulls in there)但这对返回的记录数量没有影响(而且我知道那里有空值)
Should I do be building my query some other way?我应该以其他方式构建查询吗?
Edited to add: I've tried the following based on this answer here but no luck either编辑添加:我已经根据这里的答案尝试了以下但也没有运气
.Query(query => query.Bool(b=>
b.Must(m=> m.Exists(
f=>f.Field("nationalCode")))))
.Query(query => query.Bool(b=>
b.MustNot(m=> m.Term(
"nationalCode", ""))))
Try the following尝试以下
.Query(query => query
.Bool(b => b
.Must(m => m
.Exists(f => f.Field("nationalCode"))
)
.MustNot(m => m
.Term("nationalCode", "")
)
)
)
Both the .Must
and .MustNot
need to be called on the same bool query descriptor .Must
和.MustNot
需要在同一个 bool 查询描述符上调用
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