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不使用左连接以优化更新速度

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satori
2024-12-16 09:13:22 +08:00
parent 8372b221ee
commit 586fb257bd
1 changed files with 3 additions and 1 deletions
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4
update.js
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@@ -110,7 +110,9 @@ export async function update(table, rank, views) {
await conn.query("UPDATE temp_updates SET rank = collect_count * 35 + praise_count * 20 + comment_count * 20 + views_count * 25")
console.log('更新数据从临时表转入生产库', table)
await conn.query(`UPDATE ${table} t LEFT JOIN temp_updates tu ON t.id = tu.id SET t.${rank} = IFNULL(tu.rank, 0)`)
//await conn.query(`UPDATE ${table} t LEFT JOIN temp_updates tu ON t.id = tu.id SET t.${rank} = IFNULL(tu.rank, 0)`)
await conn.query(`UPDATE ${table} t SET t.${rank} = 0`)
await conn.query(`UPDATE ${table} t JOIN temp_updates tu ON t.id = tu.id SET t.${rank} = IFNULL(tu.rank, 0)`)
await conn.end()
console.log('更新完成')
}