MySQL全文搜索：到where子句，還是不去where子句？

Question

我有2個mysql全文搜索查詢，它們返回不同的結果集。

SELECT e.id AS e__id, 
MATCH(e.subtitle, e.summary, e.title, e.prtext) AGAINST ('lorem') 
FROM exhibitions e

將返回一組可預測的7行（表中總共10行），每行的記錄ID均包含“ lorem”一詞。

但是，當我引入where子句時

SELECT e.id 
FROM exhibitions e 
WHERE MATCH(e.subtitle, e.summary, e.title, e.prtext) AGAINST ('lorem')

不返回任何行。

這兩個查詢有什么區別？

Answer 1

嘗試在BOOLEAN MODE中添加*

SELECT *,MATCH (ft_search_field) AGAINST ('lorem*' IN BOOLEAN MODE) AS Score
FROM table_name
WHERE MATCH (ft_search_field) AGAINST ('lorem*' IN BOOLEAN MODE)

Answer 2

實際上，問題是我的表結構上有很多全文索引，而我實際上只需要一個。 這是帶有where和and子句的正確查詢：

SELECT  e.id AS e__id,
    e.enabled AS e__enabled,
    e.rewrite AS e__rewrite,
    e.title AS e__title,
    e.subtitle AS e__subtitle,
    e.summary AS e__summary,
    e.type AS e__type,
    e.feature_home AS e__feature_home,
    e.date_start AS e__date_start,
    e.date_end AS e__date_end,
    e.prtext AS e__prtext,
    e.last_update AS e__last_update,
    e.file_id1 AS e__file_id1,
    e.file_id2 AS e__file_id2,
    e.file_id3 AS e__file_id3,
    e.file_id4 AS e__file_id4,
    e.file_id5 AS e__file_id5
FROM exhibitions e
WHERE  MATCH(e.subtitle, e.summary, e.title, e.prtext) AGAINST ('lorem')
       AND e.enabled = 1