Disk full (/var/tmp/#sql_bea_0); waiting for someone to free some space...
SELECT c.*, cl.id_lang, cl.name, cl.description, cl.link_rewrite, cl.meta_title, cl.meta_keywords, cl.meta_description FROM `ps_category` c LEFT JOIN `ps_category_lang` cl ON (c.`id_category` = cl.`id_category` AND `id_lang` = 5) LEFT JOIN `ps_category_group` cg ON (cg.`id_category` = c.`id_category`) WHERE `id_parent` = 3 AND `active` = 1 AND cg.`id_group` = 1 GROUP BY c.`id_category` ORDER BY `level_depth` ASC, c.`position` ASC