Hi all, Below is the user_delivery table structure.
CREATE TABLE `user_delivery` ( `user_id` decimal(22,0) NOT NULL default '0', `delivery_id` decimal(22,0) NOT NULL default '0', `send_to_regulator` char(1) default NULL, PRIMARY KEY (`user_id`), KEY `user_delivery_comp1` (`user_id`,`delivery_id`), CONSTRAINT `fk_user_delivery` FOREIGN KEY (`user_id`) REFERENCES `user_info` (`user_id`) ON DELETE NO ACTION ON UPDATE NO ACTION ) ENGINE=InnoDB DEFAULT CHARSET=latin1; According to me user_delivery_comp1 index can be dropped and new index can be created on delivery_id column. I would to know that the changes will work or not. Yours suggestion regarding this table structure. Thanks, -- Krishna Chandra Prajapati