[英]Non Null values in Marklogic - Search JSON documents with attributes in array with not null values in Marklogic
Structure of JSON documents required to be searched in Marklogic 需要在Marklogic中搜索的JSON文档的结构
{
"MESSAGEID":"18878285",
"ORDERNUMBER":["2295796"],
"CATEGORY":"F3702200000"
}
I wanted to search the URIs of all JSON documents in Marklogic that comprised of not null ORDERNUMBER
using Javascript 我想使用Javascript搜索Marklogic中所有包含非空
ORDERNUMBER
JSON文档的URI
I am using the following query but it is still showing the URIs for the documents comprising of "ORDERNUMBER":[]
我正在使用以下查询,但仍显示包含
"ORDERNUMBER":[]
的文档的URI "ORDERNUMBER":[]
cts.uris("",null,cts.andQuery
([
cts.jsonPropertyValueQuery("ORDERNUMBER", "*", "wildcarded"),
cts.notQuery(cts.jsonPropertyValueQuery("ORDERNUMBER",""))
])
);
You normally have a few options, but the empty array case is particularly hard to distinguish. 通常,您有几种选择,但是空数组的情况尤其难以区分。 This is because it is neither an empty string value, nor a null, yet the property is truly present.
这是因为它既不是空字符串值也不是null,但是该属性确实存在。
cts.jsonPropertyScopeQuery("ORDERNUMBER", cts.trueQuery())
will match any doc that has that property. cts.jsonPropertyScopeQuery("ORDERNUMBER", cts.trueQuery())
将匹配具有该属性的任何文档。
cts.jsonPropertyValueQuery("ORDERNUMBER", "")
matches ORDERNUMBER: ""
and ORDERNUMBER: [""]
. cts.jsonPropertyValueQuery("ORDERNUMBER", "")
匹配ORDERNUMBER: ""
和ORDERNUMBER: [""]
。
cts.jsonPropertyValueQuery("ORDERNUMBER", null)
matches ORDERNUMBER: null
. cts.jsonPropertyValueQuery("ORDERNUMBER", null)
匹配ORDERNUMBER: null
。
cts.jsonPropertyValueQuery("ORDERNUMBER", "?*", "wildcarded")
matches ORDERNUMBER: null
(not sure why), ORDERNUMBER: "xx"
, and ORDERNUMBER: ["xx"]
, but only if you enable filtering (which requires cts.search
), or if you are able to find the appropriate wildcard settings. cts.jsonPropertyValueQuery("ORDERNUMBER", "?*", "wildcarded")
匹配ORDERNUMBER: null
(不确定原因), ORDERNUMBER: "xx"
和ORDERNUMBER: ["xx"]
,但ORDERNUMBER: ["xx"]
是您启用了过滤(需要cts.search
),或者是否能够找到适当的通配符设置。
To be honest, the simplest solution to my opinion is to just put a range index on ORDERNUMBER
, and use a rangeQuery: 老实说,我认为最简单的解决方案是将范围索引放在
ORDERNUMBER
,并使用rangeQuery:
cts.rangeQuery(cts.pathReference('ORDERNUMBER'), '>', '')
HTH! HTH!
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