[Dbix-class] clear prefetch in resultset.

[Matt S Trout]

On Thu, Jul 05, 2007 at 12:49:38PM +1000, brett gardner wrote:
> Is there anyway to set prefetch to empty on a resultset that is created 
> elsewhere?
> 
> I have a method in my app that returns a resultset and 99% of the time I 
> want a particular relationship to be prefetched. But in one particular 
> instance I do not.
> 
> I am trying to call $rs->get_column('timestamp_entered')->min. But the 
> query is barfing because it adds the prefetched relationship fields to 
> the query.

That's a bug in the way get_column is implemented, then. If you could put
together a test file for us, I can get it fixed for the next point release.

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