合併兩個複雜的MYSQL查詢

Question

我想要合併兩個複雜的MYSQL查詢的方法。

查詢1：

SELECT p.* 
FROM posts p 
    INNER JOIN 
    (
     SELECT a.ID 
     FROM posts a 
       INNER JOIN post_tags b 
        ON a.ID = b.post_ID 
     WHERE a.post LIKE '%mmmm%' AND 
       b.tagname IN ('#test','#iseeyou') 
     GROUP BY ID 
     HAVING COUNT(DISTINCT b.tagname) = 2 
    ) sub ON p.ID = sub.ID 
ORDER BY p.upvotes DESC, p.unix_timestamp DESC 

問題2：

SELECT p.*, ((upvotes + 1.9208)/(upvotes + downvotes) - 1.96 * SQRT((upvotes * downvotes) 
/(upvotes + downvotes) + 0.9604)/(upvotes + downvotes)) 
/(1 + 3.8416/(upvotes + downvotes)) AS ci_lower_bound 
FROM posts p WHERE upvotes + downvotes > 0 
AND p.unix_timestamp BETWEEN 1363023402 AND 1363109802 ORDER BY ci_lower_bound DESC 

一個小的表定義在SQL Fiddle

實際上給出的，第一個是一個搜索查詢和所述第二人給基於過去24小時內投票的最流行結果，所以我想使用基於第二個公式中使用的公式的搜索查詢以及時間範圍

Answer 1

最小的變化是這樣的（如果我明白你想要什麼正確）

SELECT p.*, ((upvotes + 1.9208)/(upvotes + downvotes) - 1.96 * SQRT((upvotes * downvotes) 
/(upvotes + downvotes) + 0.9604)/(upvotes + downvotes)) 
/(1 + 3.8416/(upvotes + downvotes)) AS ci_lower_bound 
FROM posts p 
    INNER JOIN 
    (
     SELECT a.ID 
     FROM posts a INNER JOIN post_tags b ON a.ID = b.post_ID 
     WHERE a.post LIKE '%mmmm%' AND b.tagname IN ('#test','#iseeyou') 
     GROUP BY ID 
     HAVING COUNT(DISTINCT b.tagname) = 2 
    ) sub ON p.ID = sub.ID 
WHERE upvotes + downvotes > 0 
AND p.unix_timestamp BETWEEN 1363023402 AND 1363109802 
ORDER BY ci_lower_bound DESC 

可能是一個觸摸更有效地交換在子查詢的WHERE子句周圍（領導％上等不使用索引，因此可能更有效的參與，對上post_tags易索引檢查））

SELECT p.*, ((upvotes + 1.9208)/(upvotes + downvotes) - 1.96 * SQRT((upvotes * downvotes) 
/(upvotes + downvotes) + 0.9604)/(upvotes + downvotes)) 
/(1 + 3.8416/(upvotes + downvotes)) AS ci_lower_bound 
FROM posts p 
    INNER JOIN 
    (
     SELECT a.ID 
     FROM post_tags b STRAIGHT_JOIN posts a ON a.ID = b.post_ID 
     WHERE a.post LIKE '%mmmm%' AND b.tagname IN ('#test','#iseeyou') 
     GROUP BY ID 
     HAVING COUNT(DISTINCT b.tagname) = 2 
    ) sub ON p.ID = sub.ID 
WHERE upvotes + downvotes > 0 
AND p.unix_timestamp BETWEEN 1363023402 AND 1363109802 
ORDER BY ci_lower_bound DESC