File:
ruby-1.9.2-p0/lib/ruby/gems/1.9/gems/activerecord-3.0.0/lib/active_record/connection_adapters/sqlite_adapter.rb

Method: copy_table (line 315 in my copy)

Update the following:
@definition.column(column_name, column.type,
                :limit => column.limit, :default => column.default,
                :null => column.null)

to:
@definition.column(column_name, column.type,
                :limit => column.limit, :default => column.default,
                :precision => column.precision, :scale => column.scale,
                :null => column.null)