How can we create an Index on MongoDB? - Stack Overflow
May 11, 2018 · If you want to index on field email on users collection: db.users.createIndex({"email":1}, {background:true}) Before applying indexing in mongodb …
How to Create a nested index in MongoDB? - Stack Overflow
Mar 16, 2012 · Mongodb has wildcard indexes that allow you to create an index for a field that contains varying keys. From the documentation: If the field is a nested document or array, the …
mongodb - Motor Index not created on empty Collection - Stack …
self.con = motor.MotorClient(host, port) self.Db = self.con.DB self.Col = self.Db.Col self.Col.create_index("c") self.Col.create_index("h") When I run index_information() I only see …
Mongodb Index Creation only if not already exists
Apr 14, 2020 · When you call db.collection.createIndex, it will not re-create an index that already exists, it will return ok:1 with "note" : "all indexes already exist". This will take the same database …
mongodb - How can I create an index with pymongo - Stack Overflow
Nov 5, 2015 · I want to enable text-search at a specific field in my Mongo DB. I want to implement this search in python (-> pymongo). When I follow the instructions given in the internet: …
mongodb status of index creation job - Stack Overflow
I'm using MongoDB and have a collection with roughly 75 million records. I have added a compound index on two "fields" by using the following command: …
In MongoDB how do you index an embedded object fields in an …
The mongodb documentation for multikeys gives an example of querying embedded object fields in an array ...
mongodb - Creating index takes very long time - Stack Overflow
Option #1 - Rolling Index Build. Option #2 - Create the index on one node (per replica set), backup the database files, and then copy the database backup to all the other node(s). You will just want …
Mongodb auto create index for new collections - Stack Overflow
Aug 13, 2015 · I have a Node.JS server with a Mondodb database. Multiple clients use this same database, and each client has his own collection. The collections are named by the id of the …
indexing - Can MongoDB use an index when checking for existence …
Dec 3, 2013 · I've tried, but it doesn't seem possible to get MongoDB to use an index for this query. The index I tried was: db.users.ensureIndex({photos:1});. And when I used explain() mongo told …