Re: Index not used in join.. (example included)
| От | Michael Wood |
|---|---|
| Тема | Re: Index not used in join.. (example included) |
| Дата | |
| Msg-id | 5a8aa6680909180541q3eb331ffse025782555c6e2ee@mail.gmail.com обсуждение |
| Ответ на | Index not used in join.. (example included) (Ron Arts <ron.arts@neonova.nl>) |
| Ответы |
Re: Index not used in join.. (example included)
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| Список | pgsql-novice |
2009/9/18 Michael Wood <esiotrot@gmail.com>: > 2009/9/18 Ron Arts <ron.arts@neonova.nl>: >> A. Kretschmer schreef: > [...] >>> You can try to force an index-scan by disabling the seq-scan (set >>> enable_seqscan='no';) and re-run the query. >> >> That does force it to use the index, but doesn't speed up my query. > > Would it help to add an index on the name column of the detail table? > And maybe to make it a foreign key referencing the first table? Sorry, I just had another look and see you do have an index on the name column in detail. I wonder if it would make a difference if the index on the first table was a unique index. -- Michael Wood <esiotrot@gmail.com>
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