Merge two complex MYSQL queries - mysql

Question

i want help on a way to merge two complex MYSQL queries.
Query 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
Query 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
A small table definition is given at SQL Fiddle
Actually, the first one is a search query and the second one gives the most popular results based on votes in the last 24 hours, so i want use the search query based on the formula used in the second one and also the time range

Answer 1

With minimal changes something like this (if I have understood what you want correctly)
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
Possibly a touch more efficient to swap around the WHERE clause on the subselect (the leading % on the like will not use an index, hence probably more efficient to join that against the easily indexed check on post_tags))
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