-- accept utf8 in UID column
ALTER TABLE `kolab_cache_contact` MODIFY `uid` VARCHAR(512) CHARACTER SET utf8 NOT NULL;
ALTER TABLE `kolab_cache_event` MODIFY `uid` VARCHAR(512) CHARACTER SET utf8 NOT NULL;
ALTER TABLE `kolab_cache_task` MODIFY `uid` VARCHAR(512) CHARACTER SET utf8 NOT NULL;
ALTER TABLE `kolab_cache_journal` MODIFY `uid` VARCHAR(512) CHARACTER SET utf8 NOT NULL;
ALTER TABLE `kolab_cache_note` MODIFY `uid` VARCHAR(512) CHARACTER SET utf8 NOT NULL;
ALTER TABLE `kolab_cache_file` MODIFY `uid` VARCHAR(512) CHARACTER SET utf8 NOT NULL;
ALTER TABLE `kolab_cache_configuration` MODIFY `uid` VARCHAR(512) CHARACTER SET utf8 NOT NULL;
ALTER TABLE `kolab_cache_freebusy` MODIFY `uid` VARCHAR(512) CHARACTER SET utf8 NOT NULL;