On Tuesday 23 January 2007 13:55, Carlos wrote:
> What would be the faster way to convert a 7.4.x database into an 8.x
> database?  A dump of the database takes over 20 hours so we want to convert
> the database without having to do a dump and resptore.

You've probably already accounted for this, but make sure you've tried your 
options for loading the database. Using long ("insert") form vs copy can make 
a *huge* performance difference. 

(Hours vs seconds, in some cases!) 

-Ben 
-- 
"The best way to predict the future is to invent it."
- XEROX PARC slogan, circa 1978

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TIP 9: In versions below 8.0, the planner will ignore your desire to
       choose an index scan if your joining column's datatypes do not
       match

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