Re: [HACKERS] Fwd: Joins and links - Mailing list pgsql-hackers

From Vadim Mikheev
Subject Re: [HACKERS] Fwd: Joins and links
Date
Msg-id 3781F102.2AB6F6F8@krs.ru
Whole thread Raw
In response to Re: [HACKERS] Fwd: Joins and links  (Vadim Mikheev <vadim@krs.ru>)
List pgsql-hackers
Leon wrote:
> 
> So. The main drawback is higher priority for VACUUM. Not
> too large, eh?
> 
> When you will decide - to implement or not to implement,

We will not decide -:))
If someone want to implement it - welcome.

> I urge you to think again about the relief on optimizer,
> which I stressed many times. No one rebutted yet that adding
> brains to optimizer so that it can use appropriate join method
> will require major rewrite. With links you get the best join
> method as side effect - virtually for free. These joins
> will never be too slow for an unknown reason. Think carefully.
> I hope you will make wise decision.

Optimizer requires major rewrite in any case, even
having links implemented.

Vadim


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