anchor.diff:    `am_memory` INT(11) NOT NULL,
     `am_Vcores` INT(11) NOT NULL,
     `execution_duration` BIGINT(20) DEFAULT NULL,
  +  `queuing_time` BIGINT(20) DEFAULT NULL,
     `user_email` VARCHAR(150) NOT NULL,
     `project_name` VARCHAR(100) NOT NULL,
     `job_name` VARCHAR(128) DEFAULT NULL,
     `state` VARCHAR(128) DEFAULT NULL,
     `final_status` VARCHAR(128) DEFAULT NULL,
  -  PRIMARY KEY (`job_id`,`inode_pid`,`inode_name`,`execution_id`),
  -  UNIQUE KEY `inode_idx` (`job_id`, `inode_pid`,`inode_name`,`execution_id`)
  -) ENGINE=ndbcluster DEFAULT CHARSET=latin1;
  +  PRIMARY KEY (`execution_id`),
  +  UNIQUE KEY `inode_idx` (`app_id`)
  +) ENGINE=ndbcluster;
   
   CREATE TABLE `executions` (
     `id` INT(11) NOT NULL AUTO_INCREMENT,
  
positive.code:   FOREIGN KEY (`job_id`) REFERENCES `jobs` (`id`) ON DELETE CASCADE ON UPDATE NO ACTION,
    FOREIGN KEY (`user`) REFERENCES `users` (`email`) ON DELETE NO ACTION ON UPDATE NO ACTION
  ) ENGINE=ndbcluster DEFAULT CHARSET=latin1;
  
  CREATE TABLE `executions_inputfiles` (
    `execution_id` INT(11) NOT NULL,
    `inode_pid` INT(11) NOT NULL,
    `inode_name` VARCHAR(255) NOT NULL,
    PRIMARY KEY (`execution_id`,`inode_pid`,`inode_name`),
    UNIQUE KEY `inode_idx` (`execution_id`, `inode_pid`,`inode_name`),
    FOREIGN KEY (`inode_pid`, `inode_name`) REFERENCES `hops`.`hdfs_inodes`(`parent_id`, `name`) ON DELETE CASCADE ON UPDATE NO ACTION,
    FOREIGN KEY (`execution_id`) REFERENCES `executions` (`id`) ON DELETE CASCADE ON UPDATE NO ACTION
  ) ENGINE=ndbcluster DEFAULT CHARSET=latin1;
  
  
  CREATE TABLE `job_output_files` (
    `execution_id` INT(11) NOT NULL,
  
negative.code: 
  CREATE TABLE `jobs_history` (
    `job_id` INT(11) NOT NULL,
    `jar_file` VARCHAR(255) NOT NULL,
    `execution_id` INT(11) NOT NULL,
    `app_id` CHAR(30) DEFAULT NULL,
    `job_type` VARCHAR(255) NOT NULL,
  