db-derby-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Mike Matrigali <mikem_...@sbcglobal.net>
Subject Re: Derby-573 - optimizer overrides changes to metadata.properties and upgrade
Date Fri, 11 Nov 2005 17:42:56 GMT
In the case of soft upgrade (ie. the case where there are no changes
to the metadata.properties) will you be disabling the new optimizer

Mamta Satoor wrote:
> Hi,
> The patch for optimizer overrides includes changes in 
> metadata.properties. I think this change in metadata.properties is going 
> to require some form of upgrade code so that the sql text stored in the 
> systems tables can be replaced with new sql text which uses this new 
> form of optimizer overrides.
> I wondered if anyone can give me some pointers on how to get started 
> with upgrade code to achieve this. In the mean time, I will start 
> looking into it too.
> thanks,
> Mamta 

View raw message