Re: A costing analysis tool - Mailing list pgsql-hackers

From Jim C. Nasby
Subject Re: A costing analysis tool
Date
Msg-id 20051017211714.GT86144@pervasive.com
Whole thread Raw
In response to Re: A costing analysis tool  (Josh Berkus <josh@agliodbs.com>)
List pgsql-hackers
On Sun, Oct 16, 2005 at 02:23:41PM -0700, Josh Berkus wrote:
> Greg,
> 
> > Or something like that. It might require breaking random_page_cost into two
> > or three different parameters that would normally have the same cost but
> > aren't handled the same, like random_heap_cost, random_leaf_cost, and
> > random_nonleaf_cost.
> 
> Gods forbid.   People don't know how to use random_page_cost as it is; how are 
> they going to handle having 5 different parameters?

Well, until we try it we won't know if there's actually need for this or
not...
-- 
Jim C. Nasby, Sr. Engineering Consultant      jnasby@pervasive.com
Pervasive Software      http://pervasive.com    work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf       cell: 512-569-9461


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