--disable_query_log let $1=1000000; #let $1=1; while ($1) { let $k = `select concat('CD', cast(round(10000*rand()) as char))`; # let $k = `select ISIN from ISIN order by rand() limit 1`; --error 0,1297 eval SELECT r.`name` as name, r.`classname` as classname FROM `products`, `product_registry` r WHERE r.`producttype`= products.`producttype` AND products.hide_retail = 1 AND products.`ISIN` = '$k'; dec $1; } --enable_query_log