postgresql

[holden]

I'm guessing from this line, this extension would not be compatiable with PostgreSQL since it uses a strict definition of GROUP BY? Or could this be caused by something else?

def grouped_option_values
    @_grouped_option_values ||= option_values.group_by(&:option_type)
end

I'm getting...

PG::Error: ERROR:  for SELECT DISTINCT, ORDER BY expressions must appear in select list