不同字段的多個表上的MySQL全文搜索

Question

我試圖加入多個表並對它們執行全文搜索。

大多數表格是不相關的，但具有相似的字段。

我有全文搜索工作，但我需要能夠創建從結果這是下一步的鏈接，但我不瘦K它會工作，因爲我沒有得到足夠的信息enoygh領域。

基本上我想搜索標題和每個表的內容，但我也想搜索我的論壇表，這是主題和消息。主題和消息表是鏈接的。

這個查詢將不會查詢論壇表格，我需要能夠搜索這些表格。

SELECT * FROM (SELECT title, content, 
    MATCH(title, content) AGAINST('folk*' IN BOOLEAN MODE) 
    as score FROM news WHERE MATCH(title, content) 
    AGAINST('folk*' IN BOOLEAN MODE) 
    UNION ALL 
    SELECT title, content, 
    MATCH(title, content) AGAINST('folk*' IN BOOLEAN MODE) 
    as score FROM events WHERE MATCH(title, content) 
    AGAINST('folk*' IN BOOLEAN MODE) 
    UNION ALL 
    SELECT title, content, 
    MATCH(title, content) AGAINST('folk*' IN BOOLEAN MODE) 
    as score FROM blogs WHERE MATCH(title, content) 
    AGAINST('folk*' IN BOOLEAN MODE) 
    UNION ALL 
    SELECT title, content, 
    MATCH(title, content) AGAINST('folk*' IN BOOLEAN MODE) 
    as score FROM honeylands WHERE MATCH(title, content) 
    AGAINST('folk*' IN BOOLEAN MODE) 
    UNION ALL 
    SELECT title, content, 
    MATCH(title, content) AGAINST('folk*' IN BOOLEAN MODE) 
    as score FROM articles WHERE MATCH(title, content) 
    AGAINST('folk*' IN BOOLEAN MODE) 
    UNION ALL 
    SELECT title, content, 
    MATCH(title, content) AGAINST('folk*' IN BOOLEAN MODE) 
    as score FROM info WHERE MATCH(title, content) 
    AGAINST('folk*' IN BOOLEAN MODE) 
    UNION ALL 
    SELECT topicid as title, boardid as content, 
    MATCH(title, content) AGAINST('folk*' IN BOOLEAN MODE) 
    as score FROM articles WHERE MATCH(title, content) 
    AGAINST('folk*' IN BOOLEAN MODE) 
    UNION ALL 
    SELECT topicid as title, message as content, 
    MATCH(title, content) AGAINST('folk*' IN BOOLEAN MODE) 
    as score FROM info WHERE MATCH(title, content) 
    AGAINST('folk*' IN BOOLEAN MODE)) a ORDER BY score DESC 

我應該能夠創建具有黎民字段名，如events.php表的鏈接？ID = 1從記錄中獲取的ID，但我怎麼做到這一點的表主題和消息topic.php？boardid = 1 & topic = 2？

這裏是我的表結構 CREATE TABLE articles（ id INT（4）NOT NULL的auto_increment， title VARCHAR（70）NOT NULL默認'， content文字NOT NULL， PRIMARY KEY（id） ） ;

 CREATE TABLE `blogs` (
     `id` int(3) NOT NULL auto_increment, 
     `title` varchar(100) NOT NULL default '', 
     `content` text NOT NULL, 
     PRIMARY KEY (`id`) 
    ); 

    CREATE TABLE `events` (
     `id` int(11) NOT NULL auto_increment, 
     `title` varchar(100) NOT NULL default '', 
     `content` text NOT NULL, 
     PRIMARY KEY (`id`) 
    ); 

    CREATE TABLE `honeylands` (
     `id` int(4) NOT NULL auto_increment, 
     `title` varchar(100) NOT NULL default '', 
     `content` text NOT NULL, 
     PRIMARY KEY (`id`) 
    ); 

    CREATE TABLE `info` (
     `id` int(1) NOT NULL auto_increment, 
     `title` varchar(50) NOT NULL default '', 
     `content` text NOT NULL, 
     PRIMARY KEY (`id`) 
    ); 

    CREATE TABLE `messages` (
     `messageid` int(6) NOT NULL auto_increment, 
     `boardid` int(2) NOT NULL default '0', 
     `topicid` int(4) NOT NULL default '0', 
     `message` text NOT NULL, 
     `author` varchar(255) NOT NULL default '', 
     `postdate` datetime default NULL, 
     PRIMARY KEY (`messageid`) 
    ); 

    CREATE TABLE `news` (
     `id` int(4) NOT NULL auto_increment, 
     `title` varchar(100) NOT NULL default '', 
     `content` text NOT NULL, 
     PRIMARY KEY (`id`) 
    ); 


    CREATE TABLE `topics` (
     `topicid` int(4) NOT NULL auto_increment, 
     `boardid` int(2) NOT NULL default '0', 
     `topicname` varchar(255) NOT NULL default '', 
     `author` varchar(255) NOT NULL default '', 
     `counter` int(5) NOT NULL default '0', 
     `sticky` char(1) NOT NULL default 'n', 
     `locked` char(1) NOT NULL default 'n', 
     PRIMARY KEY (`topicid`) 
    ); 

這是我目前如何讓所有的記錄，但沒有使用UNION

SELECT * FROM (SELECT title, content, 
    MATCH(title, content) AGAINST('$keywords*' IN BOOLEAN MODE) 
    as score FROM news WHERE MATCH(title, content) 
    AGAINST('$keywords*' IN BOOLEAN MODE) 
    UNION ALL 
    SELECT title, content, 
    MATCH(title, content) AGAINST('$keywords*' IN BOOLEAN MODE) 
    as score FROM events WHERE MATCH(title, content) 
    AGAINST('$keywords*' IN BOOLEAN MODE) 
    UNION ALL 
    SELECT title, content, 
    MATCH(title, content) AGAINST('$keywords*' IN BOOLEAN MODE) 
    as score FROM blogs WHERE MATCH(title, content) 
    AGAINST('$keywords*' IN BOOLEAN MODE) 
    UNION ALL 
    SELECT title, content, 
    MATCH(title, content) AGAINST('$keywords*' IN BOOLEAN MODE) 
    as score FROM honeylands WHERE MATCH(title, content) 
    AGAINST('$keywords*' IN BOOLEAN MODE) 
    UNION ALL 
    SELECT title, content, 
    MATCH(title, content) AGAINST('$keywords*' IN BOOLEAN MODE) 
    as score FROM articles WHERE MATCH(title, content) 
    AGAINST('$keywords*' IN BOOLEAN MODE) 
    UNION ALL 
    SELECT title, content, 
    MATCH(title, content) AGAINST('$keywords*' IN BOOLEAN MODE) 
    as score FROM info WHERE MATCH(title, content) 
    AGAINST('$keywords*' IN BOOLEAN MODE) 
    UNION ALL 
    SELECT topicname as title,message as content, 
    MATCH(topicname, message) AGAINST('$keywords*' IN BOOLEAN MODE) 
    as score FROM topics t INNER JOIN messages m ON t.topicid=m.topicid 
    WHERE MATCH(topicname, message) 
    AGAINST('$keywords*' IN BOOLEAN MODE)) a ORDER BY score DESC 

Answer 1

增加對主題和消息表額外的字段的方式，我碰到這個問題上建立一個搜索一個擁有多種類型內容的網站（電影數據庫）。我希望用戶能夠進行一次搜索並找到演員，電影或角色名稱。

我沒有試圖獲得一個大的SQL語句，而是爲每種類型的內容（movie_title，movie_plot，actor_name，character_name等）進行了匹配，並將該行的id，內容類型和匹配成多維數組的分數。我通常會將每種內容類型限制在前50名比賽中。

我當時能夠根據分數對數組進行排序。然後我會使用id和內容類型來查找每個結果所需的信息。

編輯（添加代碼）

免責聲明：這是舊代碼，並有可能是更有效的做

$topResults = array(); 
$topResults[0] = array('nil', 'nil', 0); 

$movieFound = 0; 
$plotFound = 0; 
$actorFound = 0; 
$characterFound = 0; 

// example of movie title... follow the same procedure for the others 
$sql = "SELECT movies.Movie_ID as mid, MATCH (Movie_Title) AGAINST ('$searchstring') AS Score FROM movies, Rating_Movie_Relationships WHERE MATCH (Movie_Title) AGAINST ('$searchstring') AND Front_Image_File IS NOT NULL AND movies.Movie_ID = Rating_Movie_Relationships.Movie_ID $sqlwhere ORDER BY Score DESC LIMIT 0, 20"; 
$result = @mysql_query($sql); 
while ($row = mysql_fetch_array($result)) { 
    for ($i = 0; $i < count($topResults);$i++){ 
     if ($row['Score'] > $topResults[$i][2]){ 
      for ($j = count($topResults); $j > $i; $j--){ 
       $topResults[$j] = $topResults[$j-1]; 
      } 
      $topResults[$i] = array($row['mid'], 'm', $row['Score'] - $movieWeight); 
      break; 
     } 
    } 
    $movieFound = 1; 
} 

//.... add the other content types here following the movie title example 

for ($i = 0; $i < count($topResults); $i++){ 
    if ($topResults[$i][1] == 'm'){ 
     if ($countMovies < $limit) { 
      $movieTitleDivText .= str_replace('\'','&#39;',createPersonMovieImageLink($topResults[$i][0])); 
      $countMovies++; 
     } 
}