CREATE TABLE `post` (
`id` INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY ,
`text` TEXT NOT NULL ,
`user_id` INT UNSIGNED NOT NULL,
`comment_count` INT UNSIGNED NOT NULL,
`last_comment_count` INT UNSIGNED NOT NULL
);

CREATE TABLE `comment` (
`id` INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY ,
`post_id` INT UNSIGNED NOT NULL,
`text` TEXT NOT NULL
);