shrugginG

同问

@redog 感谢解答，这个内外表的概念我确实没有了解，看来确实该加强学习了哈哈，还有就是 phishy_url 是很多表的汇总表，里面应该是有 300w+的数据量的，所以之前非常慢。

@HolderRoberts
-- auto-generated definition
create table phishy_urls
(
id int auto_increment
primary key,
url varchar(2048) not null,
url_sha256 char(64) not null,
ecrimex tinyint(1) default 0 null,
ecrimex_brand varchar(255) null,
phishtank tinyint(1) default 0 null,
phishtank_brand varchar(255) null,
openphish tinyint(1) default 0 null,
openphish_brand varchar(255) null,
created_at timestamp default CURRENT_TIMESTAMP not null,
is_crawled tinyint(1) default 0 null,
page_url varchar(2048) null,
is_accessible tinyint(1) null,
is_completed tinyint(1) null,
status_code smallint unsigned null,
title varchar(255) collate utf8mb4_unicode_ci null,
ip varchar(39) null,
port int null,
updated_at timestamp default CURRENT_TIMESTAMP not null on update CURRENT_TIMESTAMP,
traffic_captured tinyint(1) default 0 null,
last_crawled_time datetime null,
constraint url_sha256_unique
unique (url_sha256)
);

@sagaxu 我用 explain 测试过了
```
EXPLAIN
INSERT INTO phishing_intelligence.phishtank_database (phish_id, url, url_sha256, phish_detail_url, submission_time,
verified, verification_time, online, target, etag)
VALUES ('8746113', 'https://free-5477419.webadorsite.com/',
'66c5960b2546bb5d7807213f8d0b6c574ac9b329aca4cc9db6ded49dbc7c4662',
'http://www.phishtank.com/phish_detail.php?phish_id=8746113', '2024-09-06T11:43:49', 'yes',
'2024-09-06T11:53:23', 'yes', 'Other', '7c90038b7ae65365a87c0ef8615e98e4');
```
结果是
```
[
{
"id": 1,
"select_type": "INSERT",
"table": "phishtank_database",
"partitions": null,
"type": "ALL",
"possible_keys": null,
"key": null,
"key_len": null,
"ref": null,
"rows": null,
"filtered": null,
"Extra": null
}
]
```
我看了这应该就是全表扫描了吧，根本没有用到唯一索引

@ttoh 我还真测试过 drop 掉 url_sha256 的唯一索引，但是测试发现 drop 前后插入速度基本没有区别

@Gilgamesh7 感谢大佬，2s 是不包含获取 url 的时间的，就是单纯的 sql 执行时间