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LWN.net Weekly Edition for May 23, 2013
An "enum" for Python 3
An unexpected perf feature
LWN.net Weekly Edition for May 16, 2013
A look at the PyPy 2.0 release
Speeding up by dropping support for some transactional updates
Posted Apr 17, 2010 3:23 UTC (Sat) by dmag (subscriber, #17775)
That's more like a key-value store. One big problem: For any operation on an 'object', you must download the entire object. (I.e. let's say each object is a blog post with metadata and all comments. You would have to download all comments for all blog posts just to list the titles of the blog posts. Ick.)
With a docstore, you can have the database scan all the objects and pick out the field you want. It saves a ton of bandwidth, and client-side processing. (Mongo saves a lot of server-side processing by using BSON for disk storage and wire-protocol.)
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