SQL全文匹配值只返回布爾值（1或0），匹配的項目

Question

我有以下SQL語句：

SELECT 
    g.*, 
     (
      MATCH (g.GameTitle) AGAINST ('call of duty') 
      OR g.GameTitle SOUNDS LIKE 'call of duty' 
     ) 
    AS MatchValue, 
    p.id AS platformid, 
    p.alias AS PlatformAlias, 
    p.name, 
    p.icon 
FROM 
    games AS g, 
    platforms AS p 
WHERE 
    (
     (
      MATCH (g.GameTitle) AGAINST ('call of duty') 
      OR g.GameTitle SOUNDS LIKE 'call of duty' 
     ) 
     OR 
     (
      MATCH (g.Alternates) AGAINST ('call of duty') 
      OR g.Alternates SOUNDS LIKE 'call of duty' 
     ) 
    ) 

AND g.Platform = p.id 
ORDER BY MatchValue DESC 

它返回一個正確的一組針對全文索引匹配時的結果，但是所報告的「MatchValue」僅具有布爾性質（0或1）。

如果我去掉語句的第5行：

OR g.GameTitle SOUNDS LIKE 'call of duty' 

我得到體面的匹配值從身邊說要5.23 15.56，但反對「候補」的匹配時，我失去了一些功能。

我不是輝煌與SQL，它採取了我幾天的時間才能得到它運行這麼多...

是否有返回非布爾值匹配，使得任何方式來獲得線5和6我的結果是正確的命令？

在此先感謝;）

Answer 1

當你說'ABC' OR (3 > 2)你所要求的一個BOOL結果。你不能得到一個字符串或布爾值。在上述情況下，字符串'abc'轉換爲布爾型，因爲它不代表數字。

因爲它不OR多大意義荷蘭國際集團字符串和布爾，我會分隔兩個：

SELECT 
    g.*, 
     (
      MATCH (g.GameTitle) AGAINST ('call of duty') 
      OR g.GameTitle SOUNDS LIKE 'call of duty' 
     ) 
    AS MatchResultBoolean, 
    MATCH (g.GameTitle) AGAINST ('call of duty') AS MatchText, 
    p.id AS platformid, 
    p.alias AS PlatformAlias, 
    p.name, 
    p.icon 
FROM 
    games AS g, 
    platforms AS p 
WHERE 
    (
     (
      MATCH (g.GameTitle) AGAINST ('call of duty') 
      OR g.GameTitle SOUNDS LIKE 'call of duty' 
     ) 
     OR 
     (
      MATCH (g.Alternates) AGAINST ('call of duty') 
      OR g.Alternates SOUNDS LIKE 'call of duty' 
     ) 
    ) 

AND g.Platform = p.id 
ORDER BY MatchValue DESC 

注意的變化：

 (
      MATCH (g.GameTitle) AGAINST ('call of duty') 
      OR g.GameTitle SOUNDS LIKE 'call of duty' 
     ) 
    AS MatchResultBoolean, 
    MATCH (g.GameTitle) AGAINST ('call of duty') AS MatchText, 

這樣，你得到它的兩個方法：一次你得到布爾值，在另一列你得到（可能）匹配。