Re: JOINS and non use of indexes

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От Ian Cass
Тема Re: JOINS and non use of indexes
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Msg-id 00d401c1df0f$d445c410$6602a8c0@salamander
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Ответ на JOINS and non use of indexes  ("Ian Cass" <ian.cass@mblox.com>)
Ответы Re: JOINS and non use of indexes  (Tom Lane <tgl@sss.pgh.pa.us>)
Список pgsql-sql
> There's your problem (and don't tell me Oracle gets this right; they
> don't do inheritance, do they?).

No, Oracle doesn't do inheritance.

> The planner isn't smart about
> indexscan-based joins for inheritance trees.  This could possibly be
> improved with some work, but I haven't thought about the details.

Is there any way I could 'educate' it by using more explicit sql, or do I
have to abandon the idea of using inheritance altogether?

--
Ian Cass



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