sum field with GROUP BY fails - mysql

Question

I have a very nasty query. I try to get a classification table sorted by touchdowns... But before reaching that goal I have a problem with a sum... let me explain.
With this query:
SELECT tft.id_team
, z.id_partido
, y.td
FROM `team_faseTorneo` tft
LEFT
JOIN
( SELECT j.id_fase
, tp.id_team
, tp.id_partido
FROM jornadas j
LEFT
JOIN partidos USING(id_jornada)
JOIN team_partido tp USING(id_partido)
) z
ON z.id_fase = tft.id_fase
AND z.id_team=tft.id_team
LEFT
JOIN
( SELECT p.id_team
, pL.id_partido
, pL.td
FROM players p
JOIN playerLogros pL USING(id_player)
) y
ON y.id_team = tft.id_team
AND y.id_partido = z.id_partido
WHERE tft.id_fase = 4
The result is this one:
id_team id_partido td
6 69 0
6 69 0
6 69 0
6 69 0
6 81 0
6 81 0
6 81 0
6 81 1
6 84 1
6 84 0
6 98 NULL
6 99 NULL
6 114 NULL
6 116 NULL
6 129 NULL
6 133 NULL
6 144 NULL
6 150 NULL
6 159 NULL
6 167 NULL
19 72 0
19 72 0
19 77 2
19 77 0
19 77 1
19 77 0
19 77 0
19 89 0
19 89 0
19 92 NULL
NUll is for the matchs(partidos) not played yet. I need to sum all the touchdowns scored by match (partido), so I tried this:
SELECT tft.id_team,z.id_partido, y.td FROM `team_faseTorneo` tft
LEFT JOIN (SELECT j.id_fase, tp.id_team, tp.id_partido FROM jornadas j LEFT JOIN partidos USING(id_jornada) JOIN team_partido tp USING(id_partido)
) z ON(z.id_fase=tft.id_fase AND z.id_team=tft.id_team) LEFT JOIN(SELECT p.id_team, pL.id_partido, SUM(pL.td) td FROM players p JOIN playerLogros pL USING(id_player) GROUP BY p.id_team) y ON(y.id_team=tft.id_team AND y.id_partido=z.id_partido)
WHERE tft.id_fase=4
But the result is this:
id_team id_partido td
6 69 NULL
6 81 NULL
6 84 NULL
6 98 NULL
6 99 NULL
6 114 NULL
6 116 NULL
6 129 NULL
6 133 NULL
6 144 NULL
6 150 NULL
6 159 NULL
6 167 NULL
19 72 3
19 77 NULL
19 89 NULL
19 92 NULL
19 106 NULL
How Can I solve this?
Thanks in advance!! :)

Answer 1

If you need a sum, then use an aggregation query. Perhaps something like this:
SELECT tft.id_team, z.id_partido, SUM(y.td)
FROM `team_faseTorneo` tft LEFT JOIN
(SELECT j.id_fase, tp.id_team, tp.id_partido
FROM jornadas j LEFT JOIN
partidos
USING (id_jornada) JOIN
team_partido tp
USING (id_partido)
) z
ON z.id_fase=tft.id_fase AND z.id_team=tft.id_team LEFT JOIN
(SELECT p.id_team, pL.id_partido, pL.td td
FROM players p JOIN
playerLogros pL
USING (id_player)
) y
ON y.id_team=tft.id_team AND y.id_partido=z.id_partido
WHERE tft.id_fase = 4
GROUP BY tft.id_team, z.id_partido;
Your query seems overly complicated, but this should at least get you the sum of td.

Answer 2

I think that I got it...
SELECT tft.id_team,z.id_partido, sum(z.td) FROM `team_faseTorneo` tft
LEFT JOIN (SELECT j.id_fase, tp.id_team, tp.id_partido, y.td FROM jornadas j LEFT JOIN partidos p USING(id_jornada) JOIN team_partido tp USING(id_partido) LEFT JOIN(SELECT p.id_team, pL.id_partido, (pL.td) td FROM players p JOIN playerLogros pL USING(id_player) ) y ON(y.id_team=tp.id_team AND y.id_partido=tp.id_partido) WHERE p.status='Finalizado'
) z ON(z.id_fase=tft.id_fase AND z.id_team=tft.id_team)
WHERE tft.id_fase=4 GROUP BY tft.id_team, z.id_partido ORDER BY tft.id_team