Wow, custom solution for 2008 still much faster Denali 2011 solution.
Also, what's about not spatial data types ?
In our approach, we can provide knn for any datatype, which has GiST index
and distance method.
Oleg
On Fri, 8 Apr 2011, Jeremiah Peschka wrote:
On 4/8/11 5:21 AM, Oleg Bartunov wrote:
Hi there,
I'm interesting if other databases provides built-in effective knn
search ? Google didn't help me.
SQL Server provides some knn search functionality[1] with enhancements coming
this November in SQL 11[2].
[1]: http://blogs.msdn.com/b/isaac/archive/2008/10/23/nearest-neighbors.aspx
[2]:
http://www.sqlskills.com/BLOGS/BOBB/post/The-nearest-neighbor-optimization-in-SQL-Server-Denali.aspx
Regards,
Oleg
_____________________________________________________________
Oleg Bartunov, Research Scientist, Head of AstroNet (www.astronet.ru),
Sternberg Astronomical Institute, Moscow University, Russia
Internet: o...@sai.msu.su, http://www.sai.msu.su/~megera/
phone: +007(495)939-16-83, +007(495)939-23-83
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