LuaSQL is not installer-friendly.
Lua is a nifty little language that I am putting to work in a personal project. Unfortunately it is lacking in some departments — while it has a library distribution framework in LuaRocks, it doesn’t have momentum enough for this system to be comprehensive and up-to-date.
LuaSQL is a perfect example. This little library provides a very think DBI-style layer to talk to various databases. But it’s not available as a LuaRock.