MySQL query match with alias WHERE not working

Question

why does my sintax is not right?

SELECT *,
           MATCH(tags,title,description) AGAINST (\'asd jhbdckdsb\' IN BOOLEAN MODE) AS score 
      FROM blogs WHERE          


        

Answer 1

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

Answer 2

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

HAVING score > 0 instead of WHERE