RE: Merging elements within a range using a key

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Subject: RE: Merging elements within a range using a key
From: "Mike B" <mikeb0304@xxxxxxxxxxx>
Date: Tue, 02 May 2006 07:30:58 -0500

Mike

Keys can only perform an equality test, not a range test.

That is the conclusion I was arriving at!

the only way to improve this - to make it O(C+R) rather than O(C*R) - is to hand-code a sort-merge join.

Since rows and categories are already sorted, this is probably the best thing to do.

Thanks,
Mike B

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Current Thread
Merging elements within a range using a key Mike B - 2 May 2006 00:48:34 -0000 Michael Kay - 2 May 2006 08:34:23 -0000 Mike B - 2 May 2006 12:31:26 -0000 <= Michael Kay - 2 May 2006 12:57:55 -0000 David Carlisle - 2 May 2006 11:16:12 -0000 Mike B - 2 May 2006 12:46:31 -0000 David Carlisle - 2 May 2006 13:10:49 -0000

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