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Re: Chunk Delete

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On Thu, Nov 15, 2007 at 09:43:52AM -0500, Andrew Sullivan wrote:
> On Thu, Nov 15, 2007 at 03:33:04PM +0200, Abraham, Danny wrote:
> > 
> > Based on a condition,  2,000,000 records should be deleted daily.
> 
> Why not use that condition (which I presume is indexed) as the criterion for
> your delete?  I mean, how else are you getting those row numbers in Oracle. 

Yup, that's what I'm confused about as well.

> They have to be sorted somehow, unless you're just deleting 2million random
> records.

To be fair; they're not random, just rather arbitrarily chosen.


  Sam

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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
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