Ruby on Rails

Yes, this make sense, but this is only one case from a lots of other
possibilities. For example, we can reduce the request time by fetching
user and post in parallel, like this:

user, post = [
Thread.new{User.by_id request.cookies[:user_id]},
Thread.new{Post.by_id params[:id]}
].collect(&:value)

Although in this case, there's probably maybe some issues with MySQL
driver (more exactly with its C extension).
But in the case of HTTP requests (for CouchDB for example) this should
work.
But for some reasons nobody uses such technics.

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