SELECT 
                                                P.id,
                                                P.nazev ,
                                                P.nazev_seo ,
                                                P.cenabezdph,
                                                P.dph, 
                                                P.poplatek,
                                                P.predtext,
                                                P.min,
                                                P.kategorie,
                                                P.obrazek1,
                                                P.citlivost, 
                                                P.novinka,
                                                P.akce,
                                                P.doporucujeme,
                                                P.skladova_dostupnost,
                                                P.poradi
                                            , C.nazev AS kategorie_nazev, C.nazev_seo AS kategorie_nazev_seo
                                            FROM t_products as P
                                            LEFT JOIN t_products_cat as C ON C.id = P.kategorie
                                            WHERE 
                                                P.publikovano=1 
                                                AND P.akce=1
                                                AND P.kategorie IN (50,51)     
                                            ORDER BY RAND() LIMIT 1
                                           Got error 28 from storage engine