Couchbase N1QL-使用键的嵌套数组
我不熟悉Couchbase和N1QL语法,我面临一个问题。 假设我们有3种类型的文档: 带有键=类型A:Doc1的类型A的Doc1Couchbase N1QL-使用键的嵌套数组,couchbase,n1ql,nested-queries,Couchbase,N1ql,Nested Queries,我不熟悉Couchbase和N1QL语法,我面临一个问题。 假设我们有3种类型的文档: 带有键=类型A:Doc1的类型A的Doc1 { "type": "typeA" "id": "Doc1", "sequences": [ "typeB:Doc2" ] } 带键的类型B的Doc2=类型B:Doc2 { "id": "
{
"type": "typeA"
"id": "Doc1",
"sequences": [
"typeB:Doc2"
]
}
带键的类型B的Doc2=类型B:Doc2
{
"id": "Doc2",
"processors": [
{
"order": 1,
"id": "typeC:Doc3"
}
]
}
带键的类型C的Doc3=类型C:Doc3
{
"id": "Doc3",
"prop": "value"
}
我想要实现的是,通过文档键嵌套这3个对象,以获得具有此结构的唯一文档:
{
"id": "Doc1",
"sequences": [
{
"id": "Doc2",
"processors": [
{
"order": 1,
"id": "Doc3",
"prop": "value"
}
]
}
]
我所做的是嵌套前两个文档以获得部分结果。但我也在尝试整合第三份文件
以下是我的尝试:
SELECT dev.*,
ARRAY sq_i FOR sq_i IN prseq END AS sequences
FROM data dev
NEST data prseq ON KEYS dev.sequences
WHERE dev.type = 'TypeA'
有人能帮我做第三级筑巢吗?
谢谢。使用子查询
SELECT dt.*,
(SELECT ds.*,
(ARRAY OBJECT_ADD((SELECT RAW dp FROM data AS dp USE KEYS v.id)[0], "order", v.`order`)
FOR v IN ds.processors
END) AS processors
FROM data AS ds USE KEYS dt.sequences) AS sequences
FROM data AS dt
WHERE dt.type = 'TypeA';