您如何在MongoDB中解释一个独特的查询?
问题描述：
您如何在MongoDB中解释一个独特的查询?
How do you explain a distinct query in MongoDB?
db.test3.distinct("id", { key:"value"}).explain()
错误:
explain is not a function (shell)
答
从Mongo 3.2开始，您可以执行以下操作:
As of Mongo 3.2, you can do:
db.test3.explain().distinct("id", {key: "value"})
https://docs.mongodb.org/manual/reference /method/db.collection.explain/