DROP TABLE instance_block;

ALTER TABLE post_aggregates
    DROP COLUMN instance_id;

CREATE OR REPLACE FUNCTION post_aggregates_post ()
    RETURNS TRIGGER
    LANGUAGE plpgsql
    AS $$
BEGIN
    IF (TG_OP = 'INSERT') THEN
        INSERT INTO post_aggregates (post_id, published, newest_comment_time, newest_comment_time_necro, community_id, creator_id)
            VALUES (NEW.id, NEW.published, NEW.published, NEW.published, NEW.community_id, NEW.creator_id);
    ELSIF (TG_OP = 'DELETE') THEN
        DELETE FROM post_aggregates
        WHERE post_id = OLD.id;
    END IF;
    RETURN NULL;
END
$$;