关于多功能模块的标签问题？
请教个问题，我现在多个功能通用一套标签，文章可以有多个标签，小组有多个标签，人也可以多个标签，话题有多个标签。数据库用mysql。
之前文章和标签的关系是通过一个映射表来实现 ，映射表保存了文章id和标签id。
现在因为出现多个功能，在思考这个表结构应该是一个tagsmap映射表，然后用字段标识区分。
还是创建多个映射表比如tagsmap_article ,tagsmap_topic,tagsmap_group?
这样的做法哪种比较好？？
可能后期数据量会比较多。
回复内容：
请教个问题，我现在多个功能通用一套标签，文章可以有多个标签，小组有多个标签，人也可以多个标签，话题有多个标签。数据库用mysql。
之前文章和标签的关系是通过一个映射表来实现 ，映射表保存了文章id和标签id。
现在因为出现多个功能，在思考这个表结构应该是一个tagsmap映射表，然后用字段标识区分。
还是创建多个映射表比如tagsmap_article ,tagsmap_topic,tagsmap_group?
这样的做法哪种比较好？？
可能后期数据量会比较多。
初期建议还是就在一个表，加个type字段来区分这三类，结构简单清晰，表多了自己都乱了。
后期量大，上了几百万条数据，到时再考虑可以分表等
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