Hi, I am a newbie to derby and I would like to try out improve performances of aggregate functions (SELECT, COUNT, SUM etc).
Initially I have look into research papers [01][02], but found out that these algorithms can not be implemented in derby since it doesn't provide support for "spatial data". Then I thought of using histogram stats and trying out for improving usage and structure of histogram stats to increase performances of aggregate query calls. I have accessed Derby and get it compiled in Eclipse. I have no idea where to begin, which package/classes/code to be accessed, and implemented. It would be a great help, if someone can help me with getting started. Also please do suggest if there are any alternate routes to achieve the goal. [01]http://dl.acm.org/citation.cfm?id=375718 [02] http://dbs.mathematik.uni-marburg.de/publications/myPapers/2002/ZGTS02EDBT.pdf -- *Ayesha Dissanayaka* Undergraduate, Department of Computer Science and Engineering, University of Moratuwa. E-Mail: [email protected]
