lua-sql-sqlite3 fails to initialize env object

[Leonardo]

Run this piece of code with either lua5.1 or lua5.2 package

#!/usr/bin/lua

require "luasql.sqlite3"

local sql = "SELECT name from names;"
local env = luasql.sqlite3()
local conn = assert (env:connect("names.sql"))
local cursor = assert (conn:execute(sql))

cursor:close()
conn:close()
env:close()

It will invariably fails with:

/usr/bin/lua: ./test:6: attempt to index global 'luasql' (a nil value)
stack traceback:
 ./test:6: in main chunk
 [C]: in ?

Expected behaviour: run without errors.

Thanks!

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: lua-sql-sqlite3 2.3.0-1
ProcVersionSignature: Ubuntu 3.8.0-26.38-generic 3.8.13.2
Uname: Linux 3.8.0-26-generic x86_64
ApportVersion: 2.9.2-0ubuntu8.1
Architecture: amd64
Date: Fri Jul 19 10:12:24 2013
MarkForUpload: True
ProcEnviron:
 LANGUAGE=en_US:en
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: lua-sql
UpgradeStatus: Upgraded to raring on 2013-07-17 (1 days ago)

[Leonardo (rnalrd)]

I was able to run it on 5.2 by changing:

require "luasql.sqlite3"

to

luasql = require "luasql.sqlite3"