Insert a document with a compound key using sublevel, and try to read it out.

sublevel-test.js

var Sublevel  = require('level-sublevel')
  , Levelup   = require('levelup')
  , bytewise = require('bytewise')

var db = Sublevel(Levelup('./db', {keyEncoding: bytewise, valueEncoding: 'json'}))

var foo = db.sublevel('foo')

foo.put(['carter', 'rabasa'], {eyes: 'brown'}, function(err) {
  foo.createReadStream().on('data', console.log)
})