CREATE OR REPLACE FUNCTION public.search_optimized_index(search_query text, page_size integer, page_offset integer, types text[])
    RETURNS TABLE(
        result_id integer,
        url text,
        title text,
        description text,
        tags text,
        genre_name text,
        genre_url text,
        type text,
        total_plays text,
        rank real,
        total_count bigint
    )
    AS $$
BEGIN
    RETURN QUERY
    SELECT
        s.id::integer AS result_id,
        s.url,
        s.title,
        s.description,
        array_to_string(s.tags, ', ') AS tags,
        s.genre_name,
        s.genre_url,
        s.type,
        s.total_plays,
        ts_rank_cd(to_tsvector('english', s.title || ' ' || s.description || array_to_string(s.tags, ' ')), plainto_tsquery('english', search_query)) AS rank,
        COUNT(*) OVER() AS total_count
    FROM
        optimized_search_index s
    WHERE(types IS NULL
        OR s.type = ANY(types))
        AND plainto_tsquery('english', search_query) @@ to_tsvector('english', s.title || ' ' || s.description || array_to_string(s.tags, ' '))
    ORDER BY
        s.type = 'post' DESC,
        s.content_date DESC NULLS LAST,
        rank DESC
    LIMIT page_size OFFSET page_offset;
END;
$$
LANGUAGE plpgsql;