Doctrine subquery within subquery - mysql

Question

I'm trying to convert a raw mysql query to use doctrine.
The table is full of rows of statistics, and my query is checking to see how far from the average the stat gain has deviated from the average increase each day.
The SQL version works exactly how I'd expect it to act. Converting to Doctrine gives me an error.
Here's the original:
SELECT
l.*,
DAY(l.created_at) as day,
MONTH(l.created_at) as month,
YEAR(l.created_at) as year,
(
MAX(l.infamyrenown) -
MIN(l.infamyrenown) -
(
SELECT AVG(infamydifference) as avginf FROM
(
SELECT (
MAX(inf.infamyrenown) -
MIN(inf.infamyrenown)
) as infamydifference
FROM lotro_record inf
GROUP BY DAY(inf.created_at)
) as p1
)
) as infamy_deviance
FROM
lotro_record l
GROUP BY
year,month,day
And here's the broken Doctrine query:
Doctrine_Core::getTable("LotroRecord")
->createQuery("l")
->select("l.*")
->addSelect("DAY(created_at)")
->addSelect("MONTH(created_at)")
->addSelect("YEAR(created_at)")
->addSelect("(
MAX(l.infamyrenown) -
MIN(l.infamyrenown) -
(
select AVG(infamydifference) as avginf FROM (
SELECT (
MAX(inf.infamyrenown) -
MIN(inf.infamyrenown)
) as infamydifference
FROM LotroRecord inf
GROUP BY DAY(inf.created_at)
) as p1
)
) as infamy_deviance")
->where("lotro_character_id = {$this->getId()}")
->groupBy("DAY(created_at)");
Which generates this SQL:
SELECT l.id AS l__id,
l.infamyrenown AS l__infamyrenown,
l.kills AS l__kills,
l.killing_blows AS l__killing_blows,
l.kills_above_rating AS l__kills_above_rating,
l.kills_below_rating AS l__kills_below_rating,
l.deaths AS l__deaths,
l.lotro_character_id AS l__lotro_character_id,
l.created_at AS l__created_at,
l.updated_at AS l__updated_at,
DAY(l.created_at) AS l__0,
MONTH(l.created_at) AS l__1,
YEAR(l.created_at) AS l__2,
( Max(l.infamyrenown) - Min(l.infamyrenown) - (SELECT
Avg(infamydifference) AS avginf
FROM
(SELECT ( Max(l2.infamyrenown) - Min(l2.infamyrenown) ) AS l__0
FROM lotro_record l2
GROUP BY DAY(l2.created_at)) AS p1) ) AS l__3
FROM lotro_record l
WHERE ( l.lotro_character_id = 1 )
GROUP BY DAY(l.created_at)
The error is:
Unknown column 'infamydifference' in 'field list'
Any ideas?

Answer 1

I think it wants you to call it inf.infamydifference instead of just infamydifference in the DQL query you're written:
select AVG(inf.infamydifference) as avginf