From: | Zeugswetter Andreas SB <ZeugswetterA(at)wien(dot)spardat(dot)at> |
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To: | "'The Hermit Hacker'" <scrappy(at)hub(dot)org> |
Cc: | "'pgsql-hackers(at)postgresql(dot)org'" <pgsql-hackers(at)postgresql(dot)org> |
Subject: | AW: man, I feel like a beginner ... |
Date: | 2000-09-11 08:52:05 |
Message-ID: | 11C1E6749A55D411A9670001FA68796336806D@sdexcsrv1.f000.d0188.sd.spardat.at |
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Lists: | pgsql-hackers |
> someone notice anything wrong with this query? :) *slap forehead*
>
> explain
> SELECT distinct s.gid, s.created ,
> geo_distance(pd.location, '(-90.3690233918754,38.7788148984854)')
> FROM status s, personal_data pd, relationship_wanted rw ,
> personal_ethnicity pe , personal_religion pr , personal_bodytype pb
> WHERE s.active AND s.status != 0
> AND (s.gid = pd.gid AND pd.gender = 0)
> AND (s.gid = rw.gid AND rw.gender = 1)
> AND geo_distance( pd.location,
> '(-90.3690233918754,38.7788148984854)' ) <= 75
> ORDER BY geo_distance( pd.location,
> '(-90.3690233918754,38.7788148984854)'), s.created desc;
You have not restricted the join on pe, pr and pb leading to a cartesian
product ?
Andreas
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