Database error: Invalid SQL: SELECT filtr.idtyp FROM produkty prods LEFT JOIN produkty_kat kat ON kat.idprod = prods.id LEFT JOIN produkty_typy filtr ON filtr.idprod=prods.id WHERE prods.pokaz=1 AND kat.idkat='17' AND () GROUP BY filtr.idtyp
MySQL Error: 1064 (You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ') GROUP BY filtr.idtyp' at line 6)