Is it OK to mixed NumberLong and normal integers in the same field in MongoDB?

Posted by Nicholas Tolley Cottrell on Stack Overflow See other posts from Stack Overflow or by Nicholas Tolley Cottrell
Published on 2012-04-12T11:26:11Z Indexed on 2012/04/12 11:28 UTC
Read the original article Hit count: 229

Filed under:

mongodb

I have been using Morphia to persistent objects from Java. I have also been running some batch processes from the console. I just realised that some values are now stored as NumberLong and number as plain Javascript numbers.

I have an index on this field. Everything seems to be ok, but if I query: {f: 100} from the console it still returns the object even if it actually contains {f: NumberLong(100)}

Is this true of all the drivers? It is best practice to avoid NumberLong is I can fit the value inside 32-bit? Will I save a lot of data and index space if I convert all NumberLongs to basic numbers?

Related posts about mongodb

MongoDB usage best practices

as seen on ASP.net Weblogs - Search for 'ASP.net Weblogs'
The project I'm working on uses MongoDB for some stuff so I'm creating some documents to help developers speedup the learning curve and also avoid mistakes and help them write clean & reliable code. This is my first version of it, so I'm pretty sure I will be adding more stuff to it, so stay tuned… >>> More
Errors trying to run MongoDB

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I'm running Ubuntu Server 12.04 (32 bit) on an old (1998) computer. Everything's working fine until I try and start MongoDB. somekittens@DLserver01:~$ mongo MongoDB shell version: 2.2.2 connecting to: test Sun Dec 16 22:47:50 Error: couldn't connect to server 127.0.0.1:27017 src/mongo/shell/mongo… >>> More
push new value to mongodb inner array - mongodb/php

as seen on Stack Overflow - Search for 'Stack Overflow'
hi i have this document in mongo: { "_id": ObjectId("4d0b9c7a8b012fe287547157"), "done_by": ["1"] } and i want to add another value to "done_by" field, so my expected document will be:: { "_id": ObjectId("4d0b9c7a8b012fe287547157"), "done_by": ["1","2","3"] } i try this: $conn… >>> More
Write-only collections in MongoDB

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm currently using MongoDB to record application logs, and while I'm quite happy with both the performance and with being able to dump arbitrary structured data into log records, I'm troubled by the mutability of log records once stored. In a traditional database, I would structure the grants for… >>> More
How to install mongoDB on windows?

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi! I am trying to test out mongoDB and see if it is anything for me. I downloaded the 32bit windows version, but have no idea on how to continue from now on. I normally use the WAMP services for developing on my local computer. Can i run mongoDB on Wamp? However, what's the best (easiest!) way… >>> More

Developer IT