Message-ID: <421F5E5D.1010902@graciousstyle.com>
Date: Fri, 25 Feb 2005 09:20:29 -0800
From: Si Chen <schen@graciousstyle.com>
Reply-To: schen@graciousstyle.com
Organization: Gracious Style
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To: pgsql-general@postgresql.org
Subject: Re: postgresql 8.0 advantages
References: <421F3926.6090201@graciousstyle.com>
	<5708.1109348115@sss.pgh.pa.us>
In-Reply-To: <5708.1109348115@sss.pgh.pa.us>
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Thanks!

Is there any documentation on how to upgrade to 8.0?

Is it possible to upgrade from 7.4 to 8.0 while keeping a production 
database running "in place"?  Or should I install 8.0 in another 
directory/machine and then restore the database into it?  Are there any 
incompatibilities/modifications to databases from the earlier veresion 
required?

(I am running RHEL3.)

Si Chen

Tom Lane wrote:

>Si Chen <schen@graciousstyle.com> writes:
>  
>
>>I read the PostgreSQL 8.0 "What's New" page 
>>(http://www.postgresql.org/docs/whatsnew) and wasn't sure whether 
>>version 8.0 is significantly faster, more scalability, or more stable 
>>than versions 7.4?  I remember big speed improvements between 7.3 and 
>>7.4.  It seems the biggest advantage of version 8.0 is being able to run 
>>in Windows. 
>>    
>>
>
>There are some speed improvements in 8.0 too, though that wasn't the
>main focus of the release cycle.  For instance, Lonni Friedman's nearby
>thread reports on a case where 8.0 consistently finds a much better
>query plan for a complex query than prior releases did, because we fixed
>some issues in the GEQO planner module.
>
>			regards, tom lane
>
>  
>