GROUP_CONCAT(g.id ORDER BY g.id SEPARATOR "\\n") AS ids,
GROUP_CONCAT(g.title ORDER BY g.id SEPARATOR "\\n") AS titles,
GREATEST(COALESCE(u.updated, 0), COALESCE(c.updated, 0), COALESCE(o.updated, 0)) AS modified
GROUP_CONCAT(g.id ORDER BY g.id SEPARATOR "\\n") AS ids,
GROUP_CONCAT(g.title ORDER BY g.id SEPARATOR "\\n") AS titles,
GREATEST(COALESCE(u.updated, 0), COALESCE(c.updated, 0), COALESCE(o.updated, 0)) AS modified