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Re: Lucid statement of the MV vs RM position?

From: Marshall Spight <marshall.spight_at_gmail.com>
Date: 5 May 2006 09:39:52 -0700
Message-ID: <1146847192.700017.265490@j73g2000cwa.googlegroups.com> 





Marshall  Spight wrote:


>

> Isn't GROUP an aggregate operator?




To expand:



GROUP : UNION :: SUM : +


GROUP is to UNION as SUM is to PLUS.



Interestingly, UNION is parametrically polymorphic, which
raises the issue of parametrically polymorphic aggregate
operators.




Marshall
Received on Fri May 05 2006 - 11:39:52 CDT












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