-- Updates from version 0.1-stable
TRUNCATE TABLE `messages`;
ALTER TABLE `messages`
DROP INDEX `idx`,
DROP INDEX `uid`;
ALTER TABLE `cache`
DROP INDEX `cache_key`,
DROP INDEX `session_id`,
ADD INDEX `user_cache_index` (`user_id`,`cache_key`);
ALTER TABLE `users`
ADD INDEX `username_index` (`username`),
ADD INDEX `alias_index` (`alias`);