Re: [HACKERS] Bushy Plans fixed
От | Vadim Mikheev |
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Тема | Re: [HACKERS] Bushy Plans fixed |
Дата | |
Msg-id | 36CB989B.25BFBAB9@krs.ru обсуждение исходный текст |
Ответ на | Re: [HACKERS] Bushy Plans fixed (Bruce Momjian <maillist@candle.pha.pa.us>) |
Ответы |
Re: [HACKERS] Bushy Plans fixed
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Список | pgsql-hackers |
Bruce Momjian wrote: > > > > Frankly, I would like to enable bushy plans and right-handed plans by > > > default. The optimizer is now fast enough that a 9-table join is almost > > > instantaneous, even with bush plans. People are not sophisticated > > > enough to know when to enables these options themselves. I am not sure I > > > am either. I would like to enables both, fix whatever breaks, and > > > programmatically enable the options when they make sense. > > > > We need not in right-sided plans code any more. > > I agreed that we should enable bushes by default. > > Are you saying right-hand plans are not useful if we have bushy plans? > If so, I will remove the right-hand code. I mean that bushes should be able to produce right-sided plans. So - remove right-sided coded. Vadim
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