Sublevel offers multiple sections within on LevelDB. Furthermore, there are hooks that allow you to run custom code whenever a row is put or deleted in a section.
This library is a Go implementation of the ideas found in the level-sublevel project of Dominic Tarr, which is written in JavaScript.
Sublevel uses levigo as a Go wrapper around LevelDB. The API of a section is similar to the API offered by levigo for the entire database.