用左键连接另一个表的Mysql全文搜索

我正在准备一个MySQL全文搜索应用程序

我有两张表：

书籍

和

价格

。执行搜索时，我需要从两个表中获取数据

书籍

模式：

id,name,title,active
1,Alex, Alex Bio,1
2,Bob, Bob Bio, 1

mysql fulltext index(name,title)

id,product_id,price
1,1,500
2,1,600
3,1,700
4,2,300
5,2,400
6,2,500

Price

schema:

id,name,title,active
1,Alex, Alex Bio,1
2,Bob, Bob Bio, 1

mysql fulltext index(name,title)

id,product_id,price
1,1,500
2,1,600
3,1,700
4,2,300
5,2,400
6,2,500

当我运行以下查询时，搜索工作正常，但我需要

price

；并且只有最低的

价格

应与

产品id

一起显示

以下是我的完整查询：

SELECT *,
  MATCH (name, title)
    AGAINST ('" . $search . "' IN BOOLEAN MODE) AS "high"
  FROM books
  WHERE MATCH (name, title) AGAINST ('" . $search . "' IN BOOLEAN MODE)
    AND active = 1
  ORDER BY high DESC;

预期产出：

id,name,title,price
1,Alex,Alex Bio,500
2,Bod,Bob Bio,300

---

只需将价格表连接到书籍，获取最低价格并添加group by子句：

SELECT books.id, name, title, min(p.price)
FROM books
INNER JOIN price p on p.product_id=books.id
WHERE MATCH (name,title) AGAINST ('" . $search . "' IN BOOLEAN MODE) AND active = 1
GROUP BY books.id, name, title
ORDER BY MATCH (name,title) AGAINST ('" . $search . "' IN BOOLEAN MODE) DESC

---

您需要一个联接才能执行此操作：

SELECT t1.id, t1.name, t1.title, COALESCE(t2.minPrice, 'NA') AS price
FROM books t1
LEFT JOIN
(
    SELECT product_id, MIN(price) AS minPrice
    FROM price
    GROUP BY product_id
) t2
    ON t1.id = t2.product_id
WHERE MATCH (name,title) AGAINST ('" . $search . "' IN BOOLEAN MODE) AND active = 1
ORDER BY MATCH (name,title) AGAINST ('" . $search . "' IN BOOLEAN MODE) DESC

---

向我们展示您的预期输出。只需与其他表连接即可。谢谢您的帮助。