MySQL query match with alias WHERE not working

问题

why does my sintax is not right?

SELECT *,
           MATCH(tags,title,description) AGAINST ('asd jhbdckdsb' IN BOOLEAN MODE) AS score 
      FROM blogs WHERE score > 0
  ORDER BY score DESC, insert_datetime DESC, id DESC ; 

the problem seems to be on WHERE condition :/

回答1:

invisible columns and column alias are not allowed in WHERE so use HAVING

HAVING score > 0 instead of WHERE

回答2:

You cannot use a column alias in the WHERE clause. You must repeat the MATCH a second time.

来源：https://stackoverflow.com/questions/12430516/mysql-query-match-with-alias-where-not-working