MySQL-基于最相关加权结果（匹配）

Posted 2021-02-25

SELECT *, (
	(1.2 * (MATCH(title) AGAINST (`".$keyword."` IN BOOLEAN MODE))) + 
	(0.8 * (MATCH(description) AGAINST (`+".$keyword."` IN BOOLEAN MODE))) + 
	(1.0 * (MATCH(tags) AGAINST (`".$keyword."` IN BOOLEAN MODE))) 
) AS relevance
FROM `".$table_posts."`
WHERE 
	MATCH (title, description, tags) AGAINST ('".$keyword."' IN BOOLEAN MODE) 
	ORDER BY relevance DESC 
LIMIT 0,5