Disk got full writing '.(temporary)' (Errcode: 28 "No space left on device") : SELECT 
				DISTINCT par.id_parametru,
				(SELECT GROUP_CONCAT(id_kategorie) FROM prefix_parametry_kategorie WHERE id_parametru=par.id_parametru GROUP BY id_parametru) AS kategorie
			FROM
			prefix_zbozi_kategorie AS zk,
				prefix_parametry AS par,
				prefix_parametry_nastaveni AS pn
			WHERE
				
				par.id_parametru=pn.id
				
				
				AND zk.id_zbozi = par.id_zbozi AND zk.id_kategorie IN ('640441') AND pn.filtrace!='ne'