Rails - Mar 2006 - Association count caching

Hi all,

5.times { foo.association }

will produce 1 query to the DB; the result is "cached" (for want of a 
better word) in a variable somewhere. However:

5.times { foo.association.count }

will run the query 5 times. Why?

I could use an association extension to cache the count value for me, 
but first I want to understand whether this is a bad idea and has been 
deliberately avoided?

Cheers

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