Couchdb 视图不适用于多个过滤器

Question

Couchdb 视图文档不适用于多个过滤器。

这些是我的示例文档

{
  "_id": "test_1234",
  "_rev": "1-ff074e2f5a6e1c4e036703524fcebca3",
  "data": {
    "userid": 1,
    "year": 1989,
    "name": "Aro",
    "type": "test"
  }
}

{
  "_id": "test_1235",
  "_rev": "1-bb86f782333c1510391f3b54d9d3a6ad",
  "data": {
    "userid": 2,
    "year": 1990,
    "name": "Babu",
    "type": "test"
  }
}

{
  "_id": "test_1236",
  "_rev": "1-02f1b6b9dcbadcad88160d996a1c4361",
  "data": {
    "userid": 3,
    "year": 1989,
    "name": "Siva",
    "type": "test"
  }
}

这是我的查看文档

 {
  "_id": "_design/testview",
  "_rev": "4-53e5fcd4dedc4e02e26844ceea70a018",
  "views": {
    "testview": {
      "map": "function (doc) {if(doc.data.type === \"test\")  emit([doc.data.userid,doc.data.year,doc.data.name], null);}"
    }
  },
  "language": "javascript"
}

所以我的视图结果如下所示

{"total_rows":3,"offset":0,"rows":[
{"id":"test_1234","key":[1,1989,"Aro"],"value":null},
{"id":"test_1235","key":[2,1990,"Babu"],"value":null},
{"id":"test_1236","key":[3,1989,"Siva"],"value":null}
]}

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我需要为以下参数过滤文档

用户 ID：1 到 3 年份 : 1989 姓名：阿罗

所以我创建了如下查询

viewtest/_design/testview/_view/testview?startkey=[1,1989,"Aro"]&endkey=[3,1989,"Aro\ufff0"]

我对此的预期输出

{"total_rows":3,"offset":0,"rows":[
{"id":"test_1234","key":[1,1989,"Aro"],"value":null}
]}

但实际输出是

{"total_rows":3,"offset":0,"rows":[
{"id":"test_1234","key":[1,1989,"Aro"],"value":null},
{"id":"test_1235","key":[2,1990,"Babu"],"value":null}
]}

为什么？我的代码有什么问题？

Answer 1

键遵循简单的ordered collation，因此startkey=[1,...] 和endkey=[3,...] 匹配所有键，例如 [2, ...]。由于 2 大于 1 且小于 3，因此无需比较不重要的元素。

如果您希望根据多个元素过滤结果，您可能需要使用mango queries。