#17 column aliases do not work with SQLite

[Andreas Schwarz]

require 'dbi'
dbc = DBI.connect('DBI:SQLite:/tmp/test.db')
res = dbc.execute("SELECT column AS alias FROM table")
puts res.fetch_hash.inspect

Output:
{nil=>"1"}

sqlite-ruby alone doesn't have this problem.

Ruby-DBI version: 0.0.21