嗨,我有这个 sql 语句
SELECT *, MATCH (first_name,last_name) AGAINST ('*?*' IN BOOLEAN MODE) AS score, MATCH (groups.groupname) AGAINST ('*?*' IN BOOLEAN MODE) AS sscore
FROM users INNER JOIN groups
WHERE MATCH (first_name,last_name) AGAINST ('*?*' IN BOOLEAN MODE) OR MATCH (groups.groupname) AGAINST ('*?*' IN BOOLEAN MODE)
ORDER BY 'score' Desc
1) 如何通过联合评分订购?我的意思是使用这个 sql 语句,它为第一个匹配创建一个分数,为第二个匹配创建一个分数。如何将这两个分数相加并按该分数排序?
2)我也知道,由于数据不同,INNER JOIN 方式不是最好的。无论如何我可以删除它吗?
最后,如果我在使用例如sim并且 first_name 是 simos 时删除 IN BOOLEAN MODE,我不会得到结果。事实上,如果我在布尔模式下输入sim ,我会得到一个空的结果集,我会得到 simos 作为结果。
编辑:我这样做回答了我的第二个问题
(SELECT `id`,MATCH(first_name,last_name) AGAINST ('?*' IN BOOLEAN MODE) AS score FROM `users` WHERE MATCH(first_name,last_name) AGAINST ('?*' IN BOOLEAN MODE))
union (SELECT groupid
, MATCH(groupname) AGAINST ('? ') AS score FROM groups
WHERE MATCH(groupname) AGAINST ('? ') )
这虽然改变了一切,因为我不需要联合得分,但在布尔模式下仍然存在问题