wiki/db/lj_combo_item_relation.md

lj_combo_item_relation table structure

此表为课程包与商品的对应关系表

field	type	null	default	desc	extra
id	bigint	no		主键	pri
combo_id	bigint	no
item_id	bigint	no
create_time	timestamp	no	now	创建时间

index

unique index (combo_id, item_id)