Re: Another Idea: Try Including snapshot with TOAS (was: Including Snapshot Info with Indexes)

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От Simon Riggs
Тема Re: Another Idea: Try Including snapshot with TOAS (was: Including Snapshot Info with Indexes)
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Msg-id 1192257813.4233.594.camel@ebony.site
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Ответ на Re: Another Idea: Try Including snapshot with TOAS (was: Including Snapshot Info with Indexes)  ("Gokulakannan Somasundaram" <gokul007@gmail.com>)
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On Sat, 2007-10-13 at 11:12 +0530, Gokulakannan Somasundaram wrote:

> b) But i don't understand how storing the visibility info in TOAST
> table would help you. In that case you may need to update it for every
> delete/ update happening in the main table. Only thing, it would help
> is if someone wants to do a full table scan on TOAST table alone. May
> be Vacuum of TOAST tables can be done independently. But do you think
> it is worth the loss of performance in Update/Delete? 

No

--  Simon Riggs 2ndQuadrant  http://www.2ndQuadrant.com



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