Re: [HACKERS] Bushy Plans fixed

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От Bruce Momjian
Тема Re: [HACKERS] Bushy Plans fixed
Дата
Msg-id 199902180510.AAA17171@candle.pha.pa.us
обсуждение исходный текст
Ответ на Re: [HACKERS] Bushy Plans fixed  (Vadim Mikheev <vadim@krs.ru>)
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> Bruce Momjian wrote:
> > 
> > >
> > > I mean that bushes should be able to produce right-sided plans.
> > > So - remove right-sided coded.
> > 
> > The bushy code joined joined relations, not base relations.  Currently,
> > base relations are always inner without right-hand plans.  See
> > make_rels_by_clause_joins() and let me know what needs to be changed, or
> > feel free to modify it yourself.  I will check your modifications.
> 
> No time -:(
> So, leave right-sided plans as is and enable them and bashes
> by default.

I have removed right-sided plans in the bushy case, because the joins
will happen on their own when it processes the other joined rel.

In the joined rel/base rel join case, the code is not going to
auto-handle this, is it, without right-handed plans?

--  Bruce Momjian                        |  http://www.op.net/~candle maillist@candle.pha.pa.us            |  (610)
853-3000+  If your life is a hard drive,     |  830 Blythe Avenue +  Christ can be your backup.        |  Drexel Hill,
Pennsylvania19026
 


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