sql中一张表的ids字段存储多个id用’,‘隔开，存储对应多张表的id，一对多关联查询

商品表：goods

SELECT * FROM `goods`

id	name	color_ids	type_ids
1	铅笔	1,2,3	1,2
2	钢笔	3,4	1,3

颜色表：color

SELECT * FROM color

id	color
1	黑色
2	白色
3	蓝色
4	紫色

类型表：type

SELECT * from type

id	type
1	标配
2	标配+橡皮
3	标配+墨水

多表查询：

SELECT 
	g.id,
	g.name,
	g.color_ids,
	GROUP_CONCAT(c.color) as colorName,
	g.type_ids,
	A.typeName
FROM 
	goods as g
	INNER JOIN color as c on FIND_IN_SET(c.id, g.color_ids),
	(
		SELECT
			g.id,
			GROUP_CONCAT(t.type) as typeName
		FROM 
			goods as g
			INNER JOIN type as t on FIND_IN_SET(t.id, g.type_ids)
		GROUP BY
			g.id
	) as A
WHERE
	A.id = g.id
GROUP BY
 	g.id

id	name	color_ids	colorName	type_ids	typeName
1	铅笔	1,2,3	黑色,白色,蓝色	1,2	标配,标配+橡皮
2	钢笔	3,4	蓝色,紫色	1,3	标配,标配+墨水