查找不连续的主键

查找不连续的主键id，数据量很小：

SELECT a.id+1 AS start, MIN(b.id) - 1 AS end
    FROM vip_des AS a, vip_des AS b
    WHERE a.id < b.id and a.id<100000 and b.id<100000
    GROUP BY a.id
    HAVING start < MIN(b.id)

不需要的列直接用@过滤掉就可以了(可以使用同一个变量名比如@a，或者使用我下面不同的变量名加上@符号)

load data infile 'test.txt' into table table_name (c1，@2, c3，@4, c5，@6， c7 ，@8，c9，@10);

相关的脚本：

/**
     * mysqldump批量读入数据
     * @author Bruce 2020/10/21
     */
    public function testNumbers()
    {
        $number = 1111111111;
        $interval = 500000;
        $file_name = ' /tmp/vip_des.sql';
        for ($i = 1; $i < 100; $i++) {
            $samll = $number - $interval * $i;
            if ($samll > 0) {
                $big = $samll + $interval;
                echo sprintf('mysqldump -h xxx.xxx.rds.aliyuncs.com -u xxx-p database tables --where="id>=%s and id<%s" >%s', $samll, $big, $file_name) . PHP_EOL;
            }
        }
    }

    /**
     * 检查不存在的id
     * @author Bruce 2020/10/21
     * @return bool
     */
    public function checkNotExist()
    {
        file_put_contents(EASYSWOOLE_ROOT . '/Log/not_exist.txt', '');
        $number = 11111111;
        $intrval = 10000;
        for ($i = 0; $i < $number; $i++) {
            $small = $i * $intrval;
            $big = $small + $intrval - 1;
            $arr = range($small, $big);
            if ($big > $number) {
                return $this->writeJson(sprintf('已完成,大值%s,小值%s', $big, $small));
            }
            $ids = VipdeModel::create()->where('id', [$small, $big], 'between')->column('id');
            $str = '';
            if (empty($ids)) {
                $str = implode(',', $arr);
            } elseif (count($ids) != $intrval) {
                $str = implode(',', array_diff($arr, $ids));
            }
            if ($str) {
                file_put_contents(EASYSWOOLE_ROOT . '/Log/not_exist.txt', $str . ',', FILE_APPEND);
            }
            usleep(100);
        }
    }