Join 2 aggregate queries?
От | Zak McGregor |
---|---|
Тема | Join 2 aggregate queries? |
Дата | |
Msg-id | 20040213021311.48b7c1ce.zak@mighty.co.za обсуждение исходный текст |
Ответы |
Re: Join 2 aggregate queries?
Re: Join 2 aggregate queries? |
Список | pgsql-general |
Hi all I have 2 aggregate queries, which are: select f.id as fixtureid, t.name as home_team, count(t.name) from teams t, results r, fixtures f, playerstoteams p where f.type=1 and f.league=4 and r.fixture=f.id and t.division=4 and p.teamid=t.id and r.home=p.playerid and r.winner=p.playerid group by fixtureid, t.name; fixtureid | home_team | count -----------+-----------+------- 2872 | Kat Fish | 12 2944 | The Fowls | 11 and select f.id as fixtureid, t.name as away_team, count(t.name) from teams t, results r, fixtures f, playerstoteams p where f.type=1 and f.league=4 and r.fixture=f.id and t.division=4 and p.teamid=t.id and r.away=p.playerid and r.winner=p.playerid group by fixtureid, t.name; fixtureid | away_team | count -----------+-------------+------- 2872 | A Cut Above | 13 2944 | Kat Fish | 14 I'd like to join them somehow to get the following: fixtureid | home_team | count1 | away_team | count2 -----------+-----------+--------+-------------+------- 2872 | Kat Fish | 12 | A Cut Above | 13 2944 | The Fowls | 11 | Kat Fish | 14 Can anyone spot a reasonable way to do that please? I have tried this, with predictably poor results: select f.id as fixtureid, t.name as home_team, count(t.name) from teams t, results r, fixtures f, playerstoteams p left outer join (select f2.id as fixtureid, t2.name as away_team, count(t2.name) from teams t2, results r2, fixtures f2, playerstoteams p2 where f2.type=1 and f2.league=4 and r2.fixture=f2.id and t2.division=4 and p2.teamid=t2.id and r2.away=p2.playerid and r2.winner=p2.playerid group by fixtureid, t2.name) as foo on (id=id) where f.type=1 and f.league=4 and r.fixture=f.id and t.division=4 and p.teamid=t.id and r.home=p.playerid and r.winner=p.playerid group by f.id, t.name; I'd also like to not have to create a view or any temporary tables that would need deleting afterwards. Any help much appreciated, thanks! Cheers Zak -- ======================================================================== http://www.carfolio.com/ Searchable database of 10 000+ car specs ========================================================================
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