小编Joe*_*ris的帖子

我们有一个这样定义的表：

CREATE TABLE ipsum ( 
    id char(40) NOT NULL, 
    source char(40) NOT NULL, 
    ip_address varbinary(16) NOT NULL, 
    port smallint(5) unsigned NOT NULL, 
    percentage decimal(5,2) NOT NULL DEFAULT '0.00', 
    first_date datetime NOT NULL, 
    last_date datetime NOT NULL, 
    p0 tinyint(1) NOT NULL DEFAULT '0',
    p1 tinyint(1) NOT NULL DEFAULT '0', 
    blocked tinyint(1) NOT NULL, 
    created datetime NOT NULL DEFAULT CURRENT_TIMESTAMP, 
    country varchar(100) DEFAULT NULL, 
    continent varchar(100) DEFAULT NULL, 
    note varchar(100) DEFAULT NULL, 
    PRIMARY KEY (id), 
    KEY idx_first_seen_peer (first_date), 
    KEY idx_last_seen_peer (last_date), 
    KEY …