具有多个参数的 CouchDB 视图

Question

我有一个包含 id 列和 ts 列的数据库。我需要能够传入 id 以及开始时间和结束时间来检索指定时间段内的所有值。我可以使用视图执行此操作，还是需要视图返回与 id 匹配的所有值？我担心的是我将返回和解析比我真正关心的更多的数据。这是我当前视图中我的数据库的格式，它只返回与 id 匹配的所有内容...

{"id":"62db2aa3472dce80b1f2193fc21d52fd","key":"A-Meter-KW","value":{"_id":"62db2aa3472dce80b1f2193fc21d52fd","_rev":"1-6aadd58f4f5dabacf6f4f638396246d0","id":"A-Meter-KW","ts":1437969600000,"tz":"New_York","val":"191kW"}},
{"id":"62db2aa3472dce80b1f2193fc21d5100","key":"A-Meter-KW","value":{"_id":"62db2aa3472dce80b1f2193fc21d5100","_rev":"1-71155153c0f03c49b02850bee5535e22","id":"A-Meter-KW","ts":1437968700000,"tz":"New_York","val":"190kW"}},
{"id":"62db2aa3472dce80b1f2193fc21d45d7","key":"A-Meter-KW","value":{"_id":"62db2aa3472dce80b1f2193fc21d45d7","_rev":"1-661511616958d45fdff3307600d2a9ed","id":"A-Meter-KW","ts":1437967800000,"tz":"New_York","val":"189kW"}},
{"id":"62db2aa3472dce80b1f2193fc21d3c23","key":"A-Meter-KW","value":{"_id":"62db2aa3472dce80b1f2193fc21d3c23","_rev":"1-4e97cfc6cb97ddc65f04efd9043b3abd","id":"A-Meter-KW","ts":1437966900000,"tz":"New_York","val":"188kW"}},
{"id":"62db2aa3472dce80b1f2193fc21d2e35","key":"A-Meter-KW","value":{"_id":"62db2aa3472dce80b1f2193fc21d2e35","_rev":"1-120298e95c9d2b4b9cdf438836b6c0c0","id":"A-Meter-KW","ts":1437966000000,"tz":"New_York","val":"187kW"}},
{"id":"62db2aa3472dce80b1f2193fc21d22b0","key":"A-Meter-KW","value":{"_id":"62db2aa3472dce80b1f2193fc21d22b0","_rev":"1-61e55d02bd8f0c601274b904f46c9f34","id":"A-Meter-KW","ts":1437965100000,"tz":"New_York","val":"186kW"}},
{"id":"62db2aa3472dce80b1f2193fc21d1ce2","key":"A-Meter-KW","value":{"_id":"62db2aa3472dce80b1f2193fc21d1ce2","_rev":"1-b4fe80563c70a40981e293af9c6a87b3","id":"A-Meter-KW","ts":1437964200000,"tz":"New_York","val":"185kW"}},
{"id":"62db2aa3472dce80b1f2193fc21d1ccc","key":"A-Meter-KW","value":{"_id":"62db2aa3472dce80b1f2193fc21d1ccc","_rev":"1-bdf1881c4270e68e7a7ed90a1d945228","id":"A-Meter-KW","ts":1437963300000,"tz":"New_York","val":"184kW"}},
{"id":"62db2aa3472dce80b1f2193fc21d1303","key":"A-Meter-KW","value":{"_id":"62db2aa3472dce80b1f2193fc21d1303","_rev":"1-404d5934fc882aa36e6d355d9a3485ae","id":"A-Meter-KW","ts":1437962400000,"tz":"New_York","val":"183kW"}},
{"id":"62db2aa3472dce80b1f2193fc21d0941","key":"A-Meter-KW","value":{"_id":"62db2aa3472dce80b1f2193fc21d0941","_rev":"1-64288d1c98e9b93aa6c546acb1e02078","id":"A-Meter-KW","ts":1437961500000,"tz":"New_York","val":"182kW"}}
...

...我当前的查询是http://localhost:5984/hist/_design/hist/_view/byId?key=%22A-Meter-KW%22&descending=true。我也想传递一个开始和结束时间，比如http://localhost:5984/hist/_design/hist/_view/byId?key=%22A-Meter-KW%22&descending=true&start=1437963300000&end=1437966000000，但不知道该怎么做。

Answer 1

编辑： 为了让 Couch 匹配您的查询，所有数据（例如：A-Meter-KW 和日期）必须在视图发出的 key 中。所以我认为你可能会这样做：

emit([key,year,month,day],doc._id)

然后就可以使用参数startkey和endkey对结果进行适当的过滤了。

参考：http://guide.couchdb.org/draft/views.html#many

附带考虑：我不会在我的文档中使用“id”属性，因为它很容易与“_id”（强制）混淆。