Re: Can relational alegbra perform bulk operations?
From: Banana <Banana_at_Republic.com>
Date: Wed, 30 Sep 2009 12:47:15 -0700
Message-ID: <4AC3B5C3.2090607_at_Republic.com>
Date: Wed, 30 Sep 2009 12:47:15 -0700
Message-ID: <4AC3B5C3.2090607_at_Republic.com>
Vadim Tropashko wrote:
> http://vadimtropashko.wordpress.com/relational-programming-with-qbql/aggregation-and-set-joins/
Thank you for sharing, that was an enlightening read. Interestingly enough, it happened that someone asked for an 'exclusionary join', and the answer we could only offer was an awkward union & frustrated joins.
I think there's something to be said about sticking to expressing query as an expression rather than as statement. That would be far more easier to parse & optimize, I'd think. Received on Wed Sep 30 2009 - 21:47:15 CEST